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# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
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# Copyright (C) 1996-2018 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.

m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
m4_ifndef([AC_AUTOCONF_VERSION],
  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
[m4_warning([this file was generated for autoconf 2.69.
You have another version of autoconf.  It may work, but is not guaranteed to.
If you have problems, you may need to regenerate the build system entirely.
To do so, use the procedure documented by the package, typically 'autoreconf'.])])

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# ============================================================================
#  https://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
# ============================================================================
#
# SYNOPSIS
#
#   AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
#   For every FLAG1, FLAG2 it is checked whether the compiler works with the
#   flag.  If it does, the flag is added FLAGS-VARIABLE
#
#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
#   CFLAGS) is used.  During the check the flag is always added to the
#   current language's flags.
#
#   If EXTRA-FLAGS is defined, it is added to the current language's default
#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
#   force the compiler to issue an error when a bad flag is given.
#
#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
#   NOTE: This macro depends on the AX_APPEND_FLAG and
#   AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
#   AX_APPEND_LINK_FLAGS.
#
# LICENSE
#
#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <https://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.
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#serial 6
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AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
[AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
for flag in $1; do
  AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3], [$4])
done
])dnl AX_APPEND_COMPILE_FLAGS
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# ===========================================================================
#      https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
#
# DESCRIPTION
#
#   FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
#   added in between.
#
#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
#   FLAG.
#
#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
#
# LICENSE
#
#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <https://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.
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#serial 7
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AC_DEFUN([AX_APPEND_FLAG],
[dnl
AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
AS_VAR_SET_IF(FLAGS,[
  AS_CASE([" AS_VAR_GET(FLAGS) "],
    [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
    [
     AS_VAR_APPEND(FLAGS,[" $1"])
     AC_RUN_LOG([: FLAGS="$FLAGS"])
    ])
  ],
  [
  AS_VAR_SET(FLAGS,[$1])
  AC_RUN_LOG([: FLAGS="$FLAGS"])
  ])
AS_VAR_POPDEF([FLAGS])dnl
])dnl AX_APPEND_FLAG
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# ===========================================================================
#   https://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
#   For every FLAG1, FLAG2 it is checked whether the linker works with the
#   flag.  If it does, the flag is added FLAGS-VARIABLE
#
#   If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
#   used. During the check the flag is always added to the linker's flags.
#
#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
#   when the check is done.  The check is thus made with the flags: "LDFLAGS
#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
#   issue an error when a bad flag is given.
#
#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
#   NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
#   Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
#
# LICENSE
#
#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <https://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.
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#serial 6
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AC_DEFUN([AX_APPEND_LINK_FLAGS],
[AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
for flag in $1; do
  AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3], [$4])
done
])dnl AX_APPEND_LINK_FLAGS
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# ===========================================================================
#  https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
#   Check whether the given FLAG works with the current language's compiler
#   or gives an error.  (Warnings, however, are ignored)
#
#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
#   success/failure.
#
#   If EXTRA-FLAGS is defined, it is added to the current language's default
#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
#   force the compiler to issue an error when a bad flag is given.
#
#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
#
# LICENSE
#
#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <https://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.
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#serial 5
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AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
    [AS_VAR_SET(CACHEVAR,[yes])],
    [AS_VAR_SET(CACHEVAR,[no])])
  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
  [m4_default([$2], :)],
  [m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS
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# ===========================================================================
#    https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
# ===========================================================================
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#
# SYNOPSIS
#
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#   AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
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#
# DESCRIPTION
#
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#   Check whether the given FLAG works with the linker or gives an error.
#   (Warnings, however, are ignored)
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#
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#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
#   success/failure.
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#
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#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
#   when the check is done.  The check is thus made with the flags: "LDFLAGS
#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
#   issue an error when a bad flag is given.
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#
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#   INPUT gives an alternative input source to AC_LINK_IFELSE.
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#
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#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
#   macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
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#
# LICENSE
#
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#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
#   This program is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   This program is distributed in the hope that it will be useful, but
#   WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
#   Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program. If not, see <https://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.

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#serial 5
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AC_DEFUN([AX_CHECK_LINK_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
  ax_check_save_flags=$LDFLAGS
  LDFLAGS="$LDFLAGS $4 $1"
  AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
    [AS_VAR_SET(CACHEVAR,[yes])],
    [AS_VAR_SET(CACHEVAR,[no])])
  LDFLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
  [m4_default([$2], :)],
  [m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_LINK_FLAGS
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# ===========================================================================
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#    https://www.gnu.org/software/autoconf-archive/ax_compiler_flags.html
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# ===========================================================================
#
# SYNOPSIS
#
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#   AX_COMPILER_FLAGS([CFLAGS-VARIABLE], [LDFLAGS-VARIABLE], [IS-RELEASE], [EXTRA-BASE-CFLAGS], [EXTRA-YES-CFLAGS], [UNUSED], [UNUSED], [UNUSED], [EXTRA-BASE-LDFLAGS], [EXTRA-YES-LDFLAGS], [UNUSED], [UNUSED], [UNUSED])
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#
# DESCRIPTION
#
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#   Check for the presence of an --enable-compile-warnings option to
#   configure, defaulting to "error" in normal operation, or "yes" if
#   IS-RELEASE is equal to "yes".  Return the value in the variable
#   $ax_enable_compile_warnings.
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#
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#   Depending on the value of --enable-compile-warnings, different compiler
#   warnings are checked to see if they work with the current compiler and,
#   if so, are appended to CFLAGS-VARIABLE and LDFLAGS-VARIABLE.  This
#   allows a consistent set of baseline compiler warnings to be used across
#   a code base, irrespective of any warnings enabled locally by individual
#   developers.  By standardising the warnings used by all developers of a
#   project, the project can commit to a zero-warnings policy, using -Werror
#   to prevent compilation if new warnings are introduced.  This makes
#   catching bugs which are flagged by warnings a lot easier.
#
#   By providing a consistent --enable-compile-warnings argument across all
#   projects using this macro, continuous integration systems can easily be
#   configured the same for all projects.  Automated systems or build
#   systems aimed at beginners may want to pass the --disable-Werror
#   argument to unconditionally prevent warnings being fatal.
#
#   --enable-compile-warnings can take the values:
#
#    * no:      Base compiler warnings only; not even -Wall.
#    * yes:     The above, plus a broad range of useful warnings.
#    * error:   The above, plus -Werror so that all warnings are fatal.
#               Use --disable-Werror to override this and disable fatal
#               warnings.
#
#   The set of base and enabled flags can be augmented using the
#   EXTRA-*-CFLAGS and EXTRA-*-LDFLAGS variables, which are tested and
#   appended to the output variable if --enable-compile-warnings is not
#   "no". Flags should not be disabled using these arguments, as the entire
#   point of AX_COMPILER_FLAGS is to enforce a consistent set of useful
#   compiler warnings on code, using warnings which have been chosen for low
#   false positive rates.  If a compiler emits false positives for a
#   warning, a #pragma should be used in the code to disable the warning
#   locally. See:
#
#     https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas
#
#   The EXTRA-* variables should only be used to supply extra warning flags,
#   and not general purpose compiler flags, as they are controlled by
#   configure options such as --disable-Werror.
#
#   IS-RELEASE can be used to disable -Werror when making a release, which
#   is useful for those hairy moments when you just want to get the release
#   done as quickly as possible.  Set it to "yes" to disable -Werror. By
#   default, it uses the value of $ax_is_release, so if you are using the
#   AX_IS_RELEASE macro, there is no need to pass this parameter. For
#   example:
#
#     AX_IS_RELEASE([git-directory])
#     AX_COMPILER_FLAGS()
#
#   CFLAGS-VARIABLE defaults to WARN_CFLAGS, and LDFLAGS-VARIABLE defaults
#   to WARN_LDFLAGS.  Both variables are AC_SUBST-ed by this macro, but must
#   be manually added to the CFLAGS and LDFLAGS variables for each target in
#   the code base.
#
#   If C++ language support is enabled with AC_PROG_CXX, which must occur
#   before this macro in configure.ac, warning flags for the C++ compiler
#   are AC_SUBST-ed as WARN_CXXFLAGS, and must be manually added to the
#   CXXFLAGS variables for each target in the code base.  EXTRA-*-CFLAGS can
#   be used to augment the base and enabled flags.
#
#   Warning flags for g-ir-scanner (from GObject Introspection) are
#   AC_SUBST-ed as WARN_SCANNERFLAGS.  This variable must be manually added
#   to the SCANNERFLAGS variable for each GIR target in the code base.  If
#   extra g-ir-scanner flags need to be enabled, the AX_COMPILER_FLAGS_GIR
#   macro must be invoked manually.
#
#   AX_COMPILER_FLAGS may add support for other tools in future, in addition
#   to the compiler and linker.  No extra EXTRA-* variables will be added
#   for those tools, and all extra support will still use the single
#   --enable-compile-warnings configure option.  For finer grained control
#   over the flags for individual tools, use AX_COMPILER_FLAGS_CFLAGS,
#   AX_COMPILER_FLAGS_LDFLAGS and AX_COMPILER_FLAGS_* for new tools.
#
#   The UNUSED variables date from a previous version of this macro, and are
#   automatically appended to the preceding non-UNUSED variable. They should
#   be left empty in new uses of the macro.
#
# LICENSE
#
#   Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
#   Copyright (c) 2015 David King <amigadave@amigadave.com>
#
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved.  This file is offered as-is, without any
#   warranty.

#serial 14

# _AX_COMPILER_FLAGS_LANG([LANGNAME])
m4_defun([_AX_COMPILER_FLAGS_LANG],
[m4_ifdef([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [],
          [m4_define([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [])dnl
           AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_]$1[FLAGS])])dnl
])

AC_DEFUN([AX_COMPILER_FLAGS],[
    # C support is enabled by default.
    _AX_COMPILER_FLAGS_LANG([C])
    # Only enable C++ support if AC_PROG_CXX is called. The redefinition of
    # AC_PROG_CXX is so that a fatal error is emitted if this macro is called
    # before AC_PROG_CXX, which would otherwise cause no C++ warnings to be
    # checked.
    AC_PROVIDE_IFELSE([AC_PROG_CXX],
                      [_AX_COMPILER_FLAGS_LANG([CXX])],
                      [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[_AX_COMPILER_FLAGS_LANG([CXX])])])
    AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_LDFLAGS])

    # Default value for IS-RELEASE is $ax_is_release
    ax_compiler_flags_is_release=m4_tolower(m4_normalize(ifelse([$3],,
                                                                [$ax_is_release],
                                                                [$3])))

    AC_ARG_ENABLE([compile-warnings],
                  AS_HELP_STRING([--enable-compile-warnings=@<:@no/yes/error@:>@],
                                 [Enable compiler warnings and errors]),,
                  [AS_IF([test "$ax_compiler_flags_is_release" = "yes"],
                         [enable_compile_warnings="yes"],
                         [enable_compile_warnings="error"])])
    AC_ARG_ENABLE([Werror],
                  AS_HELP_STRING([--disable-Werror],
                                 [Unconditionally make all compiler warnings non-fatal]),,
                  [enable_Werror=maybe])

    # Return the user's chosen warning level
    AS_IF([test "$enable_Werror" = "no" -a \
                "$enable_compile_warnings" = "error"],[
        enable_compile_warnings="yes"
    ])

    ax_enable_compile_warnings=$enable_compile_warnings

    AX_COMPILER_FLAGS_CFLAGS([$1],[$ax_compiler_flags_is_release],
                             [$4],[$5 $6 $7 $8])
    m4_ifdef([_AX_COMPILER_FLAGS_LANG_CXX_enabled],
             [AX_COMPILER_FLAGS_CXXFLAGS([WARN_CXXFLAGS],
                                         [$ax_compiler_flags_is_release],
                                         [$4],[$5 $6 $7 $8])])
    AX_COMPILER_FLAGS_LDFLAGS([$2],[$ax_compiler_flags_is_release],
                              [$9],[$10 $11 $12 $13])
    AX_COMPILER_FLAGS_GIR([WARN_SCANNERFLAGS],[$ax_compiler_flags_is_release])
])dnl AX_COMPILER_FLAGS

# =============================================================================
#  https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_cflags.html
# =============================================================================
541
#
542
# SYNOPSIS
543
#
544
#   AX_COMPILER_FLAGS_CFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
545
#
546
# DESCRIPTION
547
#
548 549 550
#   Add warning flags for the C compiler to VARIABLE, which defaults to
#   WARN_CFLAGS.  VARIABLE is AC_SUBST-ed by this macro, but must be
#   manually added to the CFLAGS variable for each target in the code base.
551
#
552 553 554
#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
#   which flags to enable.
555
#
556
# LICENSE
557
#
558
#   Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
559
#   Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
560
#
561 562 563 564
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved.  This file is offered as-is, without any
#   warranty.
565

566
#serial 16
567

568 569 570 571 572 573 574 575 576 577 578 579
AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[
    AC_REQUIRE([AC_PROG_SED])
    AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
    AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])

    # Variable names
    m4_define([ax_warn_cflags_variable],
              [m4_normalize(ifelse([$1],,[WARN_CFLAGS],[$1]))])

    AC_LANG_PUSH([C])

580 581 582 583 584 585 586
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
      [#ifndef __cplusplus
       #error "no C++"
       #endif]])],
      [ax_compiler_cxx=yes;],
      [ax_compiler_cxx=no;])

587 588 589 590 591 592 593 594 595
    # Always pass -Werror=unknown-warning-option to get Clang to fail on bad
    # flags, otherwise they are always appended to the warn_cflags variable, and
    # Clang warns on them for every compilation unit.
    # If this is passed to GCC, it will explode, so the flag must be enabled
    # conditionally.
    AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
        ax_compiler_flags_test="-Werror=unknown-warning-option"
    ],[
        ax_compiler_flags_test=""
596
    ])
597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641

    # Check that -Wno-suggest-attribute=format is supported
    AX_CHECK_COMPILE_FLAG([-Wno-suggest-attribute=format],[
        ax_compiler_no_suggest_attribute_flags="-Wno-suggest-attribute=format"
    ],[
        ax_compiler_no_suggest_attribute_flags=""
    ])

    # Base flags
    AX_APPEND_COMPILE_FLAGS([ dnl
        -fno-strict-aliasing dnl
        $3 dnl
    ],ax_warn_cflags_variable,[$ax_compiler_flags_test])

    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
        # "yes" flags
        AX_APPEND_COMPILE_FLAGS([ dnl
            -Wall dnl
            -Wextra dnl
            -Wundef dnl
            -Wwrite-strings dnl
            -Wpointer-arith dnl
            -Wmissing-declarations dnl
            -Wredundant-decls dnl
            -Wno-unused-parameter dnl
            -Wno-missing-field-initializers dnl
            -Wformat=2 dnl
            -Wcast-align dnl
            -Wformat-nonliteral dnl
            -Wformat-security dnl
            -Wsign-compare dnl
            -Wstrict-aliasing dnl
            -Wshadow dnl
            -Winline dnl
            -Wpacked dnl
            -Wmissing-format-attribute dnl
            -Wmissing-noreturn dnl
            -Winit-self dnl
            -Wredundant-decls dnl
            -Wmissing-include-dirs dnl
            -Wunused-but-set-variable dnl
            -Warray-bounds dnl
            -Wreturn-type dnl
            -Wswitch-enum dnl
            -Wswitch-default dnl
642 643 644 645 646 647
            -Wduplicated-cond dnl
            -Wduplicated-branches dnl
            -Wlogical-op dnl
            -Wrestrict dnl
            -Wnull-dereference dnl
            -Wdouble-promotion dnl
648 649 650 651 652
            $4 dnl
            $5 dnl
            $6 dnl
            $7 dnl
        ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
653 654 655 656 657 658 659 660 661 662 663 664
        if test "$ax_compiler_cxx" = "no" ; then
            # C-only flags. Warn in C++
            AX_APPEND_COMPILE_FLAGS([ dnl
            -Wnested-externs dnl
            -Wmissing-prototypes dnl
            -Wstrict-prototypes dnl
            -Wdeclaration-after-statement dnl
            -Wimplicit-function-declaration dnl
            -Wold-style-definition dnl
            -Wjump-misses-init dnl
            ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
        fi
665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697
    ])
    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
        # "error" flags; -Werror has to be appended unconditionally because
        # it's not possible to test for
        #
        # suggest-attribute=format is disabled because it gives too many false
        # positives
        AX_APPEND_FLAG([-Werror],ax_warn_cflags_variable)

        AX_APPEND_COMPILE_FLAGS([ dnl
            [$ax_compiler_no_suggest_attribute_flags] dnl
        ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
    ])

    # In the flags below, when disabling specific flags, always add *both*
    # -Wno-foo and -Wno-error=foo. This fixes the situation where (for example)
    # we enable -Werror, disable a flag, and a build bot passes CFLAGS=-Wall,
    # which effectively turns that flag back on again as an error.
    for flag in $ax_warn_cflags_variable; do
        AS_CASE([$flag],
                [-Wno-*=*],[],
                [-Wno-*],[
                    AX_APPEND_COMPILE_FLAGS([-Wno-error=$(AS_ECHO([$flag]) | $SED 's/^-Wno-//')],
                                            ax_warn_cflags_variable,
                                            [$ax_compiler_flags_test])
                ])
    done

    AC_LANG_POP([C])

    # Substitute the variables
    AC_SUBST(ax_warn_cflags_variable)
])dnl AX_COMPILER_FLAGS
698

699
# ===========================================================================
700
#  https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_gir.html
701 702 703 704
# ===========================================================================
#
# SYNOPSIS
#
705
#   AX_COMPILER_FLAGS_GIR([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
706 707 708
#
# DESCRIPTION
#
709 710 711 712
#   Add warning flags for the g-ir-scanner (from GObject Introspection) to
#   VARIABLE, which defaults to WARN_SCANNERFLAGS.  VARIABLE is AC_SUBST-ed
#   by this macro, but must be manually added to the SCANNERFLAGS variable
#   for each GIR target in the code base.
713
#
714 715 716
#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
#   which flags to enable.
717 718 719
#
# LICENSE
#
720
#   Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk>
721
#
722 723 724 725
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved.  This file is offered as-is, without any
#   warranty.
726

727
#serial 6
728

729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
AC_DEFUN([AX_COMPILER_FLAGS_GIR],[
    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])

    # Variable names
    m4_define([ax_warn_scannerflags_variable],
              [m4_normalize(ifelse([$1],,[WARN_SCANNERFLAGS],[$1]))])

    # Base flags
    AX_APPEND_FLAG([$3],ax_warn_scannerflags_variable)

    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
        # "yes" flags
        AX_APPEND_FLAG([ dnl
            --warn-all dnl
            $4 dnl
            $5 dnl
            $6 dnl
            $7 dnl
        ],ax_warn_scannerflags_variable)
    ])
    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
        # "error" flags
        AX_APPEND_FLAG([ dnl
            --warn-error dnl
        ],ax_warn_scannerflags_variable)
    ])
755

756 757 758 759 760 761 762
    # Substitute the variables
    AC_SUBST(ax_warn_scannerflags_variable)
])dnl AX_COMPILER_FLAGS

# ==============================================================================
#  https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_ldflags.html
# ==============================================================================
763 764 765
#
# SYNOPSIS
#
766
#   AX_COMPILER_FLAGS_LDFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
767 768 769
#
# DESCRIPTION
#
770 771 772
#   Add warning flags for the linker to VARIABLE, which defaults to
#   WARN_LDFLAGS.  VARIABLE is AC_SUBST-ed by this macro, but must be
#   manually added to the LDFLAGS variable for each target in the code base.
773
#
774 775 776
#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
#   which flags to enable.
777 778 779
#
# LICENSE
#
780
#   Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
781
#   Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
782
#
783 784 785 786
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved.  This file is offered as-is, without any
#   warranty.
787

788
#serial 9
789

790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[
    AX_REQUIRE_DEFINED([AX_APPEND_LINK_FLAGS])
    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
    AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
    AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])

    # Variable names
    m4_define([ax_warn_ldflags_variable],
              [m4_normalize(ifelse([$1],,[WARN_LDFLAGS],[$1]))])

    # Always pass -Werror=unknown-warning-option to get Clang to fail on bad
    # flags, otherwise they are always appended to the warn_ldflags variable,
    # and Clang warns on them for every compilation unit.
    # If this is passed to GCC, it will explode, so the flag must be enabled
    # conditionally.
    AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
        ax_compiler_flags_test="-Werror=unknown-warning-option"
    ],[
        ax_compiler_flags_test=""
    ])

811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829
    AX_CHECK_LINK_FLAG([-Wl,--as-needed], [
        AX_APPEND_LINK_FLAGS([-Wl,--as-needed],
          [AM_LDFLAGS],[$ax_compiler_flags_test])
    ])
    AX_CHECK_LINK_FLAG([-Wl,-z,relro], [
        AX_APPEND_LINK_FLAGS([-Wl,-z,relro],
          [AM_LDFLAGS],[$ax_compiler_flags_test])
    ])
    AX_CHECK_LINK_FLAG([-Wl,-z,now], [
        AX_APPEND_LINK_FLAGS([-Wl,-z,now],
          [AM_LDFLAGS],[$ax_compiler_flags_test])
    ])
    AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [
        AX_APPEND_LINK_FLAGS([-Wl,-z,noexecstack],
          [AM_LDFLAGS],[$ax_compiler_flags_test])
    ])
    # textonly, retpolineplt not yet

    # macOS and cygwin linker do not have --as-needed
830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870
    AX_CHECK_LINK_FLAG([-Wl,--no-as-needed], [
        ax_compiler_flags_as_needed_option="-Wl,--no-as-needed"
    ], [
        ax_compiler_flags_as_needed_option=""
    ])

    # macOS linker speaks with a different accent
    ax_compiler_flags_fatal_warnings_option=""
    AX_CHECK_LINK_FLAG([-Wl,--fatal-warnings], [
        ax_compiler_flags_fatal_warnings_option="-Wl,--fatal-warnings"
    ])
    AX_CHECK_LINK_FLAG([-Wl,-fatal_warnings], [
        ax_compiler_flags_fatal_warnings_option="-Wl,-fatal_warnings"
    ])

    # Base flags
    AX_APPEND_LINK_FLAGS([ dnl
        $ax_compiler_flags_as_needed_option dnl
        $3 dnl
    ],ax_warn_ldflags_variable,[$ax_compiler_flags_test])

    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
        # "yes" flags
        AX_APPEND_LINK_FLAGS([$4 $5 $6 $7],
                                ax_warn_ldflags_variable,
                                [$ax_compiler_flags_test])
    ])
    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
        # "error" flags; -Werror has to be appended unconditionally because
        # it's not possible to test for
        #
        # suggest-attribute=format is disabled because it gives too many false
        # positives
        AX_APPEND_LINK_FLAGS([ dnl
            $ax_compiler_flags_fatal_warnings_option dnl
        ],ax_warn_ldflags_variable,[$ax_compiler_flags_test])
    ])

    # Substitute the variables
    AC_SUBST(ax_warn_ldflags_variable)
])dnl AX_COMPILER_FLAGS
871

872
# ===========================================================================
873
#      https://www.gnu.org/software/autoconf-archive/ax_is_release.html
874 875 876 877
# ===========================================================================
#
# SYNOPSIS
#
878
#   AX_IS_RELEASE(POLICY)
879 880 881
#
# DESCRIPTION
#
882 883
#   Determine whether the code is being configured as a release, or from
#   git. Set the ax_is_release variable to 'yes' or 'no'.
884
#
885 886 887 888
#   If building a release version, it is recommended that the configure
#   script disable compiler errors and debug features, by conditionalising
#   them on the ax_is_release variable.  If building from git, these
#   features should be enabled.
889
#
890 891
#   The POLICY parameter specifies how ax_is_release is determined. It can
#   take the following values:
892
#
893 894 895 896 897 898 899 900 901 902 903 904 905
#    * git-directory:  ax_is_release will be 'no' if a '.git' directory exists
#    * minor-version:  ax_is_release will be 'no' if the minor version number
#                      in $PACKAGE_VERSION is odd; this assumes
#                      $PACKAGE_VERSION follows the 'major.minor.micro' scheme
#    * micro-version:  ax_is_release will be 'no' if the micro version number
#                      in $PACKAGE_VERSION is odd; this assumes
#                      $PACKAGE_VERSION follows the 'major.minor.micro' scheme
#    * dash-version:   ax_is_release will be 'no' if there is a dash '-'
#                      in $PACKAGE_VERSION, for example 1.2-pre3, 1.2.42-a8b9
#                      or 2.0-dirty (in particular this is suitable for use
#                      with git-version-gen)
#    * always:         ax_is_release will always be 'yes'
#    * never:          ax_is_release will always be 'no'
906
#
907
#   Other policies may be added in future.
908 909 910
#
# LICENSE
#
911 912
#   Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk>
#   Copyright (c) 2016 Collabora Ltd.
913
#
914 915 916
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved.
917

918
#serial 7
919

920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951
AC_DEFUN([AX_IS_RELEASE],[
    AC_BEFORE([AC_INIT],[$0])

    m4_case([$1],
      [git-directory],[
        # $is_release = (.git directory does not exist)
        AS_IF([test -d ${srcdir}/.git],[ax_is_release=no],[ax_is_release=yes])
      ],
      [minor-version],[
        # $is_release = ($minor_version is even)
        minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'`
        AS_IF([test "$(( $minor_version % 2 ))" -ne 0],
              [ax_is_release=no],[ax_is_release=yes])
      ],
      [micro-version],[
        # $is_release = ($micro_version is even)
        micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'`
        AS_IF([test "$(( $micro_version % 2 ))" -ne 0],
              [ax_is_release=no],[ax_is_release=yes])
      ],
      [dash-version],[
        # $is_release = ($PACKAGE_VERSION has a dash)
        AS_CASE([$PACKAGE_VERSION],
                [*-*], [ax_is_release=no],
                [*], [ax_is_release=yes])
      ],
      [always],[ax_is_release=yes],
      [never],[ax_is_release=no],
      [
        AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version, micro-version, dash-version, always, never.])
      ])
])
952

953
# ===========================================================================
954
#    https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
955 956 957 958
# ===========================================================================
#
# SYNOPSIS
#
959
#   AX_REQUIRE_DEFINED(MACRO)
960 961 962
#
# DESCRIPTION
#
963 964 965 966
#   AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
#   been defined and thus are available for use.  This avoids random issues
#   where a macro isn't expanded.  Instead the configure script emits a
#   non-fatal:
967
#
968
#     ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
969
#
970
#   It's like AC_REQUIRE except it doesn't expand the required macro.
971
#
972
#   Here's an example:
973
#
974
#     AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
975
#
976
# LICENSE
977
#
978
#   Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
979
#
980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
#   Copying and distribution of this file, with or without modification, are
#   permitted in any medium without royalty provided the copyright notice
#   and this notice are preserved. This file is offered as-is, without any
#   warranty.

#serial 2

AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
  m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
])dnl AX_REQUIRE_DEFINED

dnl -*- mode: autoconf -*-
dnl Copyright 2009 Johan Dahlin
dnl
dnl This file is free software; the author(s) gives unlimited
dnl permission to copy and/or distribute it, with or without
dnl modifications, as long as this notice is preserved.
dnl
998

999
# serial 1
1000

1001 1002 1003 1004 1005
m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
[
    AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([LT_INIT],[$0])dnl setup libtool first
1006

1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
    dnl enable/disable introspection
    m4_if([$2], [require],
    [dnl
        enable_introspection=yes
    ],[dnl
        AC_ARG_ENABLE(introspection,
                  AS_HELP_STRING([--enable-introspection[=@<:@no/auto/yes@:>@]],
                                 [Enable introspection for this build]),, 
                                 [enable_introspection=auto])
    ])dnl
1017

1018
    AC_MSG_CHECKING([for gobject-introspection])
1019

1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039
    dnl presence/version checking
    AS_CASE([$enable_introspection],
    [no], [dnl
        found_introspection="no (disabled, use --enable-introspection to enable)"
    ],dnl
    [yes],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0],,
                         AC_MSG_ERROR([gobject-introspection-1.0 is not installed]))
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1],
                         found_introspection=yes,
                         AC_MSG_ERROR([You need to have gobject-introspection >= $1 installed to build AC_PACKAGE_NAME]))
    ],dnl
    [auto],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no)
	dnl Canonicalize enable_introspection
	enable_introspection=$found_introspection
    ],dnl
    [dnl	
        AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@])
    ])dnl
1040

1041
    AC_MSG_RESULT([$found_introspection])
1042

1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065
    INTROSPECTION_SCANNER=
    INTROSPECTION_COMPILER=
    INTROSPECTION_GENERATE=
    INTROSPECTION_GIRDIR=
    INTROSPECTION_TYPELIBDIR=
    if test "x$found_introspection" = "xyes"; then
       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
       INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
       INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
       INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
    fi
    AC_SUBST(INTROSPECTION_SCANNER)
    AC_SUBST(INTROSPECTION_COMPILER)
    AC_SUBST(INTROSPECTION_GENERATE)
    AC_SUBST(INTROSPECTION_GIRDIR)
    AC_SUBST(INTROSPECTION_TYPELIBDIR)
    AC_SUBST(INTROSPECTION_CFLAGS)
    AC_SUBST(INTROSPECTION_LIBS)
    AC_SUBST(INTROSPECTION_MAKEFILE)
1066

1067 1068
    AM_CONDITIONAL(HAVE_INTROSPECTION, test "x$found_introspection" = "xyes")
])
1069

1070

1071 1072
dnl Usage:
dnl   GOBJECT_INTROSPECTION_CHECK([minimum-g-i-version])
1073

1074 1075 1076
AC_DEFUN([GOBJECT_INTROSPECTION_CHECK],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1])
1077
])
1078

1079 1080
dnl Usage:
dnl   GOBJECT_INTROSPECTION_REQUIRE([minimum-g-i-version])
1081 1082


1083 1084 1085 1086
AC_DEFUN([GOBJECT_INTROSPECTION_REQUIRE],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1], [require])
])
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# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
# serial 11 (pkg-config-0.29.1)
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dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
1093
dnl
1094 1095 1096 1097
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
1098
dnl
1099 1100 1101 1102
dnl This program is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl General Public License for more details.
1103
dnl
1104 1105 1106 1107
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
dnl 02111-1307, USA.
1108
dnl
1109 1110 1111 1112 1113
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a
dnl configuration script generated by Autoconf, you may include it under
dnl the same distribution terms that you use for the rest of that
dnl program.
1114

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dnl PKG_PREREQ(MIN-VERSION)
dnl -----------------------
dnl Since: 0.29
dnl
dnl Verify that the version of the pkg-config macros are at least
dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
dnl installed version of pkg-config, this checks the developer's version
dnl of pkg.m4 when generating configure.
dnl
dnl To ensure that this macro is defined, also add:
dnl m4_ifndef([PKG_PREREQ],
dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
dnl
dnl See the "Since" comment for each macro you use to see what version
dnl of the macros you require.
m4_defun([PKG_PREREQ],
[m4_define([PKG_MACROS_VERSION], [0.29.1])
m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
])dnl PKG_PREREQ
1135

1136 1137 1138
dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
dnl ----------------------------------
dnl Since: 0.16
1139
dnl
1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151
dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
dnl first found in the path. Checks that the version of pkg-config found
dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
dnl used since that's the first version where most current features of
dnl pkg-config existed.
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
1152

1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166
if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
fi
if test -n "$PKG_CONFIG"; then
	_pkg_min_version=m4_default([$1], [0.9.0])
	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
		AC_MSG_RESULT([yes])
	else
		AC_MSG_RESULT([no])
		PKG_CONFIG=""
	fi
fi[]dnl
])dnl PKG_PROG_PKG_CONFIG
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dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------------------------------
dnl Since: 0.18
dnl
dnl Check to see whether a particular set of modules exists. Similar to
dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
dnl
dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
dnl only at the first occurence in configure.ac, so if the first place
dnl it's called might be skipped (such as if it is within an "if", you
dnl have to call PKG_CHECK_EXISTS manually
AC_DEFUN([PKG_CHECK_EXISTS],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
if test -n "$PKG_CONFIG" && \
    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
  m4_default([$2], [:])
m4_ifvaln([$3], [else
  $3])dnl
fi])
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dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
dnl ---------------------------------------------
dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
dnl pkg_failed based on the result.
m4_define([_PKG_CONFIG],
[if test -n "$$1"; then
    pkg_cv_[]$1="$$1"
 elif test -n "$PKG_CONFIG"; then
    PKG_CHECK_EXISTS([$3],
                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
		      test "x$?" != "x0" && pkg_failed=yes ],
		     [pkg_failed=yes])
 else
    pkg_failed=untried
fi[]dnl
])dnl _PKG_CONFIG
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dnl _PKG_SHORT_ERRORS_SUPPORTED
dnl ---------------------------
dnl Internal check to see if pkg-config supports short errors.
AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
        _pkg_short_errors_supported=yes
else
        _pkg_short_errors_supported=no
fi[]dnl
])dnl _PKG_SHORT_ERRORS_SUPPORTED
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dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl   [ACTION-IF-NOT-FOUND])
dnl --------------------------------------------------------------
dnl Since: 0.4.0
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
AC_DEFUN([PKG_CHECK_MODULES],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
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pkg_failed=no
AC_MSG_CHECKING([for $1])
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_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2])
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m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.])
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if test $pkg_failed = yes; then
   	AC_MSG_RESULT([no])
        _PKG_SHORT_ERRORS_SUPPORTED
        if test $_pkg_short_errors_supported = yes; then
	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
        else 
	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
1248
        fi
1249 1250
	# Put the nasty error message in config.log where it belongs
	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
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1252 1253
	m4_default([$4], [AC_MSG_ERROR(
[Package requirements ($2) were not met:
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$$1_PKG_ERRORS

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

_PKG_TEXT])[]dnl
        ])
elif test $pkg_failed = untried; then
     	AC_MSG_RESULT([no])
	m4_default([$4], [AC_MSG_FAILURE(
[The pkg-config script could not be found or is too old.  Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.
1268

1269
_PKG_TEXT
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1271 1272 1273 1274 1275 1276 1277 1278 1279
To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
        ])
else
	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
        AC_MSG_RESULT([yes])
	$3
fi[]dnl
])dnl PKG_CHECK_MODULES
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dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl   [ACTION-IF-NOT-FOUND])
dnl ---------------------------------------------------------------------
dnl Since: 0.29
dnl
dnl Checks for existence of MODULES and gathers its build flags with
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
dnl and VARIABLE-PREFIX_LIBS from --libs.
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
dnl configure.ac.
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
_save_PKG_CONFIG=$PKG_CONFIG
PKG_CONFIG="$PKG_CONFIG --static"
PKG_CHECK_MODULES($@)
PKG_CONFIG=$_save_PKG_CONFIG[]dnl
])dnl PKG_CHECK_MODULES_STATIC
1302 1303


1304 1305 1306
dnl PKG_INSTALLDIR([DIRECTORY])
dnl -------------------------
dnl Since: 0.27
1307
dnl
1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323
dnl Substitutes the variable pkgconfigdir as the location where a module
dnl should install pkg-config .pc files. By default the directory is
dnl $libdir/pkgconfig, but the default can be changed by passing
dnl DIRECTORY. The user can override through the --with-pkgconfigdir
dnl parameter.
AC_DEFUN([PKG_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
m4_pushdef([pkg_description],
    [pkg-config installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([pkgconfigdir],
    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
    [with_pkgconfigdir=]pkg_default)
AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_INSTALLDIR
1324 1325


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dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
dnl --------------------------------
dnl Since: 0.27
dnl
dnl Substitutes the variable noarch_pkgconfigdir as the location where a
dnl module should install arch-independent pkg-config .pc files. By
dnl default the directory is $datadir/pkgconfig, but the default can be
dnl changed by passing DIRECTORY. The user can override through the
dnl --with-noarch-pkgconfigdir parameter.
AC_DEFUN([PKG_NOARCH_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
m4_pushdef([pkg_description],
    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([noarch-pkgconfigdir],
    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
    [with_noarch_pkgconfigdir=]pkg_default)
AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_NOARCH_INSTALLDIR
1346 1347


1348 1349 1350 1351 1352 1353 1354 1355 1356
dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------
dnl Since: 0.28
dnl
dnl Retrieves the value of the pkg-config variable for the given module.
AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
1357

1358 1359
_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])
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1361 1362 1363 1364 1365 1366 1367
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])dnl PKG_CHECK_VAR

dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
dnl   [DESCRIPTION], [DEFAULT])
dnl ------------------------------------------
1368
dnl
1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405
dnl Prepare a "--with-" configure option using the lowercase
dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
dnl PKG_CHECK_MODULES in a single macro.
AC_DEFUN([PKG_WITH_MODULES],
[
m4_pushdef([with_arg], m4_tolower([$1]))

m4_pushdef([description],
           [m4_default([$5], [build with ]with_arg[ support])])

m4_pushdef([def_arg], [m4_default([$6], [auto])])
m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])

m4_case(def_arg,
            [yes],[m4_pushdef([with_without], [--without-]with_arg)],
            [m4_pushdef([with_without],[--with-]with_arg)])

AC_ARG_WITH(with_arg,
     AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
    [AS_TR_SH([with_]with_arg)=def_arg])

AS_CASE([$AS_TR_SH([with_]with_arg)],
            [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
            [auto],[PKG_CHECK_MODULES([$1],[$2],
                                        [m4_n([def_action_if_found]) $3],
                                        [m4_n([def_action_if_not_found]) $4])])

m4_popdef([with_arg])
m4_popdef([description])
m4_popdef([def_arg])

])dnl PKG_WITH_MODULES

dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [DESCRIPTION], [DEFAULT])
dnl -----------------------------------------------
1406
dnl
1407 1408 1409 1410 1411
dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
dnl check._[VARIABLE-PREFIX] is exported as make variable.
AC_DEFUN([PKG_HAVE_WITH_MODULES],
[
PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
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AM_CONDITIONAL([HAVE_][$1],
               [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
])dnl PKG_HAVE_WITH_MODULES

dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
dnl   [DESCRIPTION], [DEFAULT])
dnl ------------------------------------------------------
dnl
dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
dnl and preprocessor variable.
AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
[
PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
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AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
        [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
])dnl PKG_HAVE_DEFINE_WITH_MODULES
1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573

AC_DEFUN([YELP_HELP_INIT],
[
AC_REQUIRE([AC_PROG_LN_S])
m4_pattern_allow([AM_V_at])
m4_pattern_allow([AM_V_GEN])
m4_pattern_allow([AM_DEFAULT_VERBOSITY])

YELP_LC_MEDIA_LINKS=true
YELP_LC_DIST=true

for yelpopt in [$1]; do
  case $yelpopt in
    lc-media-links)    YELP_LC_MEDIA_LINKS=true ;;
    no-lc-media-links) YELP_LC_MEDIA_LINKS= ;;
    lc-dist)           YELP_LC_DIST=true ;;
    no-lc-dist)        YELP_LC_DIST= ;;
    *) AC_MSG_ERROR([Unrecognized [YELP_HELP_INIT] option $yelpopt"]) ;;
  esac
done;
AC_SUBST([YELP_LC_MEDIA_LINKS])
AC_SUBST([YELP_LC_DIST])

AC_ARG_WITH([help-dir],
            AS_HELP_STRING([--with-help-dir=DIR],
                           [path where help files are installed]),,
            [with_help_dir='${datadir}/help'])
HELP_DIR="$with_help_dir"
AC_SUBST(HELP_DIR)

AC_ARG_VAR([ITSTOOL], [Path to the `itstool` command])
AC_CHECK_PROG([ITSTOOL], [itstool], [itstool])
if test x"$ITSTOOL" = x; then
  AC_MSG_ERROR([itstool not found])
fi

AC_ARG_VAR([XMLLINT], [Path to the `xmllint` command])
AC_CHECK_PROG([XMLLINT], [xmllint], [xmllint])
if test x"$XMLLINT" = x; then
  AC_MSG_ERROR([xmllint not found])
fi

YELP_HELP_RULES='
HELP_ID ?=
HELP_POT ?=
HELP_FILES ?=
HELP_EXTRA ?=
HELP_MEDIA ?=
HELP_LINGUAS ?=

_HELP_LINGUAS = $(if $(filter environment,$(origin LINGUAS)),$(filter $(LINGUAS),$(HELP_LINGUAS)),$(HELP_LINGUAS))
_HELP_POTFILE = $(if $(HELP_POT),$(HELP_POT),$(if $(HELP_ID),$(HELP_ID).pot))
_HELP_POFILES = $(if $(HELP_ID),$(foreach lc,$(_HELP_LINGUAS),$(lc)/$(lc).po))
_HELP_MOFILES = $(patsubst %.po,%.mo,$(_HELP_POFILES))
_HELP_C_FILES = $(foreach f,$(HELP_FILES),C/$(f))
_HELP_C_EXTRA = $(foreach f,$(HELP_EXTRA),C/$(f))
_HELP_C_MEDIA = $(foreach f,$(HELP_MEDIA),C/$(f))
_HELP_LC_FILES = $(foreach lc,$(_HELP_LINGUAS),$(foreach f,$(HELP_FILES),$(lc)/$(f)))
_HELP_LC_STAMPS = $(foreach lc,$(_HELP_LINGUAS),$(lc)/$(lc).stamp)

_HELP_DEFAULT_V = $(if $(AM_DEFAULT_VERBOSITY),$(AM_DEFAULT_VERBOSITY),1)
_HELP_V = $(if $(V),$(V),$(_HELP_DEFAULT_V))
_HELP_LC_VERBOSE = $(_HELP_LC_VERBOSE_$(_HELP_V))
_HELP_LC_VERBOSE_ = $(_HELP_LC_VERBOSE_$(_HELP_DEFAULT_V))
_HELP_LC_VERBOSE_0 = @echo "  GEN    "$(dir [$]@);

all: $(_HELP_C_FILES) $(_HELP_C_EXTRA) $(_HELP_C_MEDIA) $(_HELP_LC_FILES) $(_HELP_POFILES)

.PHONY: pot
pot: $(_HELP_POTFILE)
$(_HELP_POTFILE): $(_HELP_C_FILES) $(_HELP_C_EXTRA) $(_HELP_C_MEDIA)
	$(AM_V_GEN)if test -d "C"; then d=; else d="$(srcdir)/"; fi; \
	$(ITSTOOL) -o "[$]@" $(foreach f,$(_HELP_C_FILES),"$${d}$(f)")

.PHONY: repo
repo: $(_HELP_POTFILE)
	$(AM_V_at)for po in $(_HELP_POFILES); do \
	  if test "x[$](_HELP_V)" = "x0"; then echo "  GEN    $${po}"; fi; \
	  msgmerge -q -o "$${po}" "$${po}" "$(_HELP_POTFILE)"; \
	done

$(_HELP_POFILES):
	$(AM_V_at)if ! test -d "$(dir [$]@)"; then mkdir "$(dir [$]@)"; fi
	$(AM_V_at)if test ! -f "[$]@" -a -f "$(srcdir)/[$]@"; then cp "$(srcdir)/[$]@" "[$]@"; fi
	$(AM_V_GEN)if ! test -f "[$]@"; then \
	  (cd "$(dir [$]@)" && \
	    $(ITSTOOL) -o "$(notdir [$]@).tmp" $(_HELP_C_FILES) && \
	    mv "$(notdir [$]@).tmp" "$(notdir [$]@)"); \
	else \
	  (cd "$(dir [$]@)" && \
	    $(ITSTOOL) -o "$(notdir [$]@).tmp" $(_HELP_C_FILES) && \
	    msgmerge -o "$(notdir [$]@)" "$(notdir [$]@)" "$(notdir [$]@).tmp" && \
	    rm "$(notdir [$]@).tmp"); \
	fi

$(_HELP_MOFILES): %.mo: %.po
	$(AM_V_at)if ! test -d "$(dir [$]@)"; then mkdir "$(dir [$]@)"; fi
	$(AM_V_GEN)msgfmt -o "[$]@" "$<"

$(_HELP_LC_FILES): $(_HELP_LINGUAS)
$(_HELP_LINGUAS): $(_HELP_LC_STAMPS)
$(_HELP_LC_STAMPS): %.stamp: %.mo
$(_HELP_LC_STAMPS): $(_HELP_C_FILES) $(_HELP_C_EXTRA)
	$(AM_V_at)if ! test -d "$(dir [$]@)"; then mkdir "$(dir [$]@)"; fi
	$(_HELP_LC_VERBOSE)if test -d "C"; then d="../"; else d="$(abs_srcdir)/"; fi; \
	mo="$(dir [$]@)$(patsubst %/$(notdir [$]@),%,[$]@).mo"; \
	if test -f "$${mo}"; then mo="../$${mo}"; else mo="$(abs_srcdir)/$${mo}"; fi; \
	(cd "$(dir [$]@)" && $(ITSTOOL) -m "$${mo}" $(foreach f,$(_HELP_C_FILES),$${d}/$(f))) && \
	touch "[$]@"

.PHONY: clean-help
mostlyclean-am: $(if $(HELP_ID),clean-help)
clean-help:
	rm -f $(_HELP_LC_FILES) $(_HELP_LC_STAMPS) $(_HELP_MOFILES)

EXTRA_DIST ?=
EXTRA_DIST += $(_HELP_C_EXTRA) $(_HELP_C_MEDIA)
EXTRA_DIST += $(if $(YELP_LC_DIST),$(foreach lc,$(HELP_LINGUAS),$(lc)/$(lc).stamp))
EXTRA_DIST += $(foreach lc,$(HELP_LINGUAS),$(lc)/$(lc).po)
EXTRA_DIST += $(foreach f,$(HELP_MEDIA),$(foreach lc,$(HELP_LINGUAS),$(wildcard $(lc)/$(f))))

distdir: distdir-help-files
distdir-help-files: $(_HELP_LC_FILES)
	@for lc in C $(if $(YELP_LC_DIST),$(HELP_LINGUAS)) ; do \
	  $(MKDIR_P) "$(distdir)/$$lc"; \
	  for file in $(HELP_FILES); do \
	    if test -f "$$lc/$$file"; then d=./; else d=$(srcdir)/; fi; \
	    cp -p "$$d$$lc/$$file" "$(distdir)/$$lc/" || exit 1; \
	  done; \
	done; \

.PHONY: check-help
check: check-help
check-help:
	for lc in C $(_HELP_LINGUAS); do \
	  if test -d "$$lc"; \
	    then d=; \
	    xmlpath="$$lc"; \
	  else \
	    d="$(srcdir)/"; \
	    xmlpath="$$lc:$(srcdir)/$$lc"; \
	  fi; \
	  for page in $(HELP_FILES); do \
1574 1575
	    echo "$(XMLLINT) --nonet --noout --noent --path $$xmlpath --xinclude $$d$$lc/$$page"; \
	    $(XMLLINT) --nonet --noout --noent --path "$$xmlpath" --xinclude "$$d$$lc/$$page"; \
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	  done; \
	done


.PHONY: install-help
install-data-am: $(if $(HELP_ID),install-help)
install-help: $(_HELP_LC_FILES)
	@for lc in C $(_HELP_LINGUAS); do \
	  $(mkinstalldirs) "$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)" || exit 1; \
	done
	@for lc in C $(_HELP_LINGUAS); do for f in $(HELP_FILES); do \
	  if test -f "$$lc/$$f"; then d=; else d="$(srcdir)/"; fi; \
	  helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	  if ! test -d "$$helpdir"; then $(mkinstalldirs) "$$helpdir"; fi; \
	  echo "$(INSTALL_DATA) $$d$$lc/$$f $$helpdir`basename $$f`"; \
	  $(INSTALL_DATA) "$$d$$lc/$$f" "$$helpdir`basename $$f`" || exit 1; \
	done; done
	@for f in $(_HELP_C_EXTRA); do \
	  lc=`dirname "$$f"`; lc=`basename "$$lc"`; \
	  if test -f "$$f"; then d=; else d="$(srcdir)/"; fi; \
	  helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	  if ! test -d "$$helpdir"; then $(mkinstalldirs) "$$helpdir"; fi; \
	  echo "$(INSTALL_DATA) $$d$$f $$helpdir`basename $$f`"; \
	  $(INSTALL_DATA) "$$d$$f" "$$helpdir`basename $$f`" || exit 1; \
	done
	@for f in $(HELP_MEDIA); do \
	  for lc in C $(_HELP_LINGUAS); do \
	    if test -f "$$lc$$f"; then d=; else d="$(srcdir)/"; fi; \
	    helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	    mdir=`dirname "$$f"`; \
	    if test "x$mdir" = "x."; then mdir=""; fi; \
	    if ! test -d "$$helpdir$$mdir"; then $(mkinstalldirs) "$$helpdir$$mdir"; fi; \
	    if test -f "$$d$$lc/$$f"; then \
	      echo "$(INSTALL_DATA) $$d$$lc/$$f $$helpdir$$f"; \
	      $(INSTALL_DATA) "$$d$$lc/$$f" "$$helpdir$$f" || exit 1; \
	    elif test "x$$lc" != "xC"; then \
	      if test "x$(YELP_LC_MEDIA_LINKS)" != "x"; then \
	        echo "$(LN_S) -f $(HELP_DIR)/C/$(HELP_ID)/$$f $$helpdir$$f"; \
	        $(LN_S) -f "$(HELP_DIR)/C/$(HELP_ID)/$$f" "$$helpdir$$f" || exit 1; \
	      fi; \
	    fi; \
	  done; \
	done

.PHONY: uninstall-help
uninstall-am: $(if $(HELP_ID),uninstall-help)
uninstall-help:
	for lc in C $(_HELP_LINGUAS); do for f in $(HELP_FILES); do \
	  helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	  echo "rm -f $$helpdir`basename $$f`"; \
	  rm -f "$$helpdir`basename $$f`"; \
	done; done
	@for f in $(_HELP_C_EXTRA); do \
	  lc=`dirname "$$f"`; lc=`basename "$$lc"`; \
	  helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	  echo "rm -f $$helpdir`basename $$f`"; \
	  rm -f "$$helpdir`basename $$f`"; \
	done
	@for f in $(HELP_MEDIA); do \
	  for lc in C $(_HELP_LINGUAS); do \
	    helpdir="$(DESTDIR)$(HELP_DIR)/$$lc/$(HELP_ID)/"; \
	    echo "rm -f $$helpdir$$f"; \
	    rm -f "$$helpdir$$f"; \
	  done; \
	done;
'
AC_SUBST([YELP_HELP_RULES])
m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([YELP_HELP_RULES])])
])

1646
# Copyright (C) 2002-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_AUTOMAKE_VERSION(VERSION)
# ----------------------------
# Automake X.Y traces this macro to ensure aclocal.m4 has been
# generated from the m4 files accompanying Automake X.Y.
# (This private macro should not be called outside this file.)
AC_DEFUN([AM_AUTOMAKE_VERSION],
1658
[am__api_version='1.16'
1659 1660
dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
dnl require some minimum version.  Point them to the right macro.
1661
m4_if([$1], [1.16.1], [],
1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676
      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
])

# _AM_AUTOCONF_VERSION(VERSION)
# -----------------------------
# aclocal traces this macro to find the Autoconf version.
# This is a private macro too.  Using m4_define simplifies
# the logic in aclocal, which can simply ignore this definition.
m4_define([_AM_AUTOCONF_VERSION], [])

# AM_SET_CURRENT_AUTOMAKE_VERSION
# -------------------------------
# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
1677
[AM_AUTOMAKE_VERSION([1.16.1])dnl
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m4_ifndef([AC_AUTOCONF_VERSION],
  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])

# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-

1684
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
#
# Of course, Automake must honor this variable whenever it calls a
# tool from the auxiliary directory.  The problem is that $srcdir (and
# therefore $ac_aux_dir as well) can be either absolute or relative,
# depending on how configure is run.  This is pretty annoying, since
# it makes $ac_aux_dir quite unusable in subdirectories: in the top
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# $ac_aux_dir/missing
#    fails when called from a subdirectory if $ac_aux_dir is relative
# $top_srcdir/$ac_aux_dir/missing
#    fails if $ac_aux_dir is absolute,
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#
# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
# are both prefixed by $srcdir.  In an in-source build this is usually
# harmless because $srcdir is '.', but things will broke when you
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# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
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#   MISSING="\${SHELL} $am_aux_dir/missing"
# This will work as long as MISSING is not called from configure, because
# unfortunately $(top_srcdir) has no meaning in configure.
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#
# Another solution, used here, is to always expand $ac_aux_dir to an
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AC_DEFUN([AM_AUX_DIR_EXPAND],
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# Expand $ac_aux_dir to an absolute path.
am_aux_dir=`cd "$ac_aux_dir" && pwd`
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# AM_CONDITIONAL                                            -*- Autoconf -*-

1736
# Copyright (C) 1997-2018 Free Software Foundation, Inc.
1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_CONDITIONAL(NAME, SHELL-CONDITION)
# -------------------------------------
# Define a conditional.
AC_DEFUN([AM_CONDITIONAL],
[AC_PREREQ([2.52])dnl
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AC_SUBST([$1_TRUE])dnl
AC_SUBST([$1_FALSE])dnl
_AM_SUBST_NOTMAKE([$1_TRUE])dnl
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m4_define([_AM_COND_VALUE_$1], [$2])dnl
if $2; then
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AC_CONFIG_COMMANDS_PRE(
[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  AC_MSG_ERROR([[conditional "$1" was never defined.
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fi])])

1767
# Copyright (C) 1999-2018 Free Software Foundation, Inc.
1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.


# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
# written in clear, in which case automake, when reading aclocal.m4,
# will think it sees a *use*, and therefore will trigger all it's
# C support machinery.  Also note that it means that autoscan, seeing
# CC etc. in the Makefile, will ask for an AC_PROG_CC use...


# _AM_DEPENDENCIES(NAME)
# ----------------------
# See how the compiler implements dependency checking.
# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
# We try a few techniques and use that to set a single cache variable.
#
# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
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AC_DEFUN([_AM_DEPENDENCIES],
[AC_REQUIRE([AM_SET_DEPDIR])dnl
AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
AC_REQUIRE([AM_MAKE_INCLUDE])dnl
AC_REQUIRE([AM_DEP_TRACK])dnl

m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
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AC_CACHE_CHECK([dependency style of $depcc],
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    none) break ;;
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    if depmode=$depmode \
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       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
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         >/dev/null 2>conftest.err &&
       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
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AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
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# AM_SET_DEPDIR
# -------------
# Choose a directory name for dependency files.
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AC_DEFUN([AM_SET_DEPDIR],
[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
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# AM_DEP_TRACK
# ------------
AC_DEFUN([AM_DEP_TRACK],
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AS_HELP_STRING(
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AS_HELP_STRING(
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if test "x$enable_dependency_tracking" != xno; then
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  AMDEPBACKSLASH='\'
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AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
AC_SUBST([AMDEPBACKSLASH])dnl
_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
AC_SUBST([am__nodep])dnl
_AM_SUBST_NOTMAKE([am__nodep])dnl
])

# Generate code to set up dependency tracking.              -*- Autoconf -*-

1958
# Copyright (C) 1999-2018 Free Software Foundation, Inc.
1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_OUTPUT_DEPENDENCY_COMMANDS
# ------------------------------
AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
[{
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1971 1972 1973 1974 1975
  # TODO: see whether this extra hack can be removed once we start
  # requiring Autoconf 2.70 or later.
  AS_CASE([$CONFIG_FILES],
          [*\'*], [eval set x "$CONFIG_FILES"],
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1976
  shift
1977 1978 1979
  # Used to flag and report bootstrapping failures.
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1980 1981
  do
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1982 1983 1984 1985
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1986
    # limit of 2048, but all sed's we know have understand at least 4000.
1987 1988 1989 1990 1991 1992 1993
    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
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1994
  done
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
  if test $am_rc -ne 0; then
    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
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  AS_UNSET([am_dirpart])
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  AS_UNSET([am_mf])
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  rm -f conftest-deps.mk
2006 2007 2008 2009 2010 2011 2012 2013
}
])# _AM_OUTPUT_DEPENDENCY_COMMANDS


# AM_OUTPUT_DEPENDENCY_COMMANDS
# -----------------------------
# This macro should only be invoked once -- use via AC_REQUIRE.
#
2014 2015 2016
# This code is only required when automatic dependency tracking is enabled.
# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
# order to bootstrap the dependency handling code.
2017 2018 2019
AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
[AC_CONFIG_COMMANDS([depfiles],
     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
2020
     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
2021 2022 2023

# Do all the work for Automake.                             -*- Autoconf -*-

2024
# Copyright (C) 1996-2018 Free Software Foundation, Inc.
2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This macro actually does too much.  Some checks are only needed if
# your package does certain things.  But this isn't really a big deal.

dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
m4_define([AC_PROG_CC],
m4_defn([AC_PROG_CC])
[_AM_PROG_CC_C_O
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# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
# AM_INIT_AUTOMAKE([OPTIONS])
# -----------------------------------------------
# The call with PACKAGE and VERSION arguments is the old style
# call (pre autoconf-2.50), which is being phased out.  PACKAGE
# and VERSION should now be passed to AC_INIT and removed from
# the call to AM_INIT_AUTOMAKE.
# We support both call styles for the transition.  After
# the next Automake release, Autoconf can make the AC_INIT
# arguments mandatory, and then we can depend on a new Autoconf
# release and drop the old call support.
AC_DEFUN([AM_INIT_AUTOMAKE],
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dnl Autoconf wants to disallow AM_ names.  We explicitly allow
dnl the ones we care about.
m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
AC_REQUIRE([AC_PROG_INSTALL])dnl
if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  # test to see if srcdir already configured
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fi

# test whether we have cygpath
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    CYGPATH_W=echo
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AC_SUBST([CYGPATH_W])

# Define the identity of the package.
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m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
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dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
m4_if(
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  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
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_AM_IF_OPTION([no-define],,
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# Some tools Automake needs.
AC_REQUIRE([AM_SANITY_CHECK])dnl
AC_REQUIRE([AC_ARG_PROGRAM])dnl
AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
AM_MISSING_PROG([AUTOCONF], [autoconf])
AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
AM_MISSING_PROG([AUTOHEADER], [autoheader])
AM_MISSING_PROG([MAKEINFO], [makeinfo])
AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
AC_REQUIRE([AC_PROG_MKDIR_P])dnl
# For better backward compatibility.  To be removed once Automake 1.9.x
# dies out for good.  For more background, see:
2111 2112
# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178
AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
# We need awk for the "check" target (and possibly the TAP driver).  The
# system "awk" is bad on some platforms.
AC_REQUIRE([AC_PROG_AWK])dnl
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AM_SET_LEADING_DOT])dnl
_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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			     [_AM_PROG_TAR([v7])])])
_AM_IF_OPTION([no-dependencies],,
[AC_PROVIDE_IFELSE([AC_PROG_CC],
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AC_PROVIDE_IFELSE([AC_PROG_CXX],
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AC_PROVIDE_IFELSE([AC_PROG_OBJC],
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AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
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])
AC_REQUIRE([AM_SILENT_RULES])dnl
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# POSIX will say in a future version that running "rm -f" with no argument
# is OK; and we want to be able to make that assumption in our Makefile
# recipes.  So use an aggressive probe to check that the usage we want is
# actually supported "in the wild" to an acceptable degree.
# See automake bug#10828.
# To make any issue more visible, cause the running configure to be aborted
# by default if the 'rm' program in use doesn't match our expectations; the
# user can still override this though.
if rm -f && rm -fr && rm -rf; then : OK; else
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Oops!

Your 'rm' program seems unable to run without file operands specified
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to the behaviour of most rm programs out there, and not conforming with
the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>

Please tell bug-automake@gnu.org about your system, including the value
of your $PATH and any error possibly output before this message.  This
can help us improve future automake versions.

END
  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
    echo 'Configuration will proceed anyway, since you have set the' >&2
    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
    echo >&2
  else
    cat >&2 <<'END'
Aborting the configuration process, to ensure you take notice of the issue.

You can download and install GNU coreutils to get an 'rm' implementation
2179
that behaves properly: <https://www.gnu.org/software/coreutils/>.
2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220

If you want to complete the configuration process using your problematic
'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
to "yes", and re-run configure.

END
    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  fi
fi
dnl The trailing newline in this macro's definition is deliberate, for
dnl backward compatibility and to allow trailing 'dnl'-style comments
dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
])

dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
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m4_define([_AC_COMPILER_EXEEXT],
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# When config.status generates a header, we must update the stamp-h file.
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echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])

2221
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_SH
# ------------------
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
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    install_sh="\${SHELL} $am_aux_dir/install-sh"
  esac
fi
AC_SUBST([install_sh])])

2242
# Copyright (C) 2003-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# Check whether the underlying file-system supports filenames
# with a leading dot.  For instance MS-DOS doesn't.
AC_DEFUN([AM_SET_LEADING_DOT],
[rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
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fi
rmdir .tst 2>/dev/null
AC_SUBST([am__leading_dot])])

# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
# From Jim Meyering

2264
# Copyright (C) 1996-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_MAINTAINER_MODE([DEFAULT-MODE])
# ----------------------------------
# Control maintainer-specific portions of Makefiles.
# Default is to disable them, unless 'enable' is passed literally.
# For symmetry, 'disable' may be passed as well.  Anyway, the user
# can override the default with the --enable/--disable switch.
AC_DEFUN([AM_MAINTAINER_MODE],
[m4_case(m4_default([$1], [disable]),
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  MAINT=$MAINTAINER_MODE_TRUE
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]
)

# Check to see how 'make' treats includes.	            -*- Autoconf -*-

2299
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
2300 2301 2302 2303 2304 2305 2306
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_MAKE_INCLUDE()
# -----------------
2307 2308
# Check whether make has an 'include' directive that can support all
# the idioms we need for our automatic dependency tracking code.
2309
AC_DEFUN([AM_MAKE_INCLUDE],
2310 2311
[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
cat > confinc.mk << 'END'
2312
am__doit:
2313
	@echo this is the am__doit target >confinc.out
2314 2315 2316 2317
.PHONY: am__doit
END
am__include="#"
am__quote=
2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338
# BSD make does it like this.
echo '.include "confinc.mk" # ignored' > confmf.BSD
# Other make implementations (GNU, Solaris 10, AIX) do it like this.
echo 'include confinc.mk # ignored' > confmf.GNU
_am_result=no
for s in GNU BSD; do
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  fi
done
rm -f confinc.* confmf.*
AC_MSG_RESULT([${_am_result}])
AC_SUBST([am__include])])
AC_SUBST([am__quote])])
2339 2340 2341

# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-

2342
# Copyright (C) 1997-2018 Free Software Foundation, Inc.
2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_MISSING_PROG(NAME, PROGRAM)
# ------------------------------
AC_DEFUN([AM_MISSING_PROG],
[AC_REQUIRE([AM_MISSING_HAS_RUN])
$1=${$1-"${am_missing_run}$2"}
AC_SUBST($1)])

# AM_MISSING_HAS_RUN
# ------------------
# Define MISSING if not defined so far and test if it is modern enough.
# If it is, set am_missing_run to use it, otherwise, to nothing.
AC_DEFUN([AM_MISSING_HAS_RUN],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([missing])dnl
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# Use eval to expand $SHELL
if eval "$MISSING --is-lightweight"; then
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fi
])

# Helper functions for option handling.                     -*- Autoconf -*-

2381
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_MANGLE_OPTION(NAME)
# -----------------------
AC_DEFUN([_AM_MANGLE_OPTION],
[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])

# _AM_SET_OPTION(NAME)
# --------------------
# Set option NAME.  Presently that only means defining a flag for this option.
AC_DEFUN([_AM_SET_OPTION],
[m4_define(_AM_MANGLE_OPTION([$1]), [1])])

# _AM_SET_OPTIONS(OPTIONS)
# ------------------------
# OPTIONS is a space-separated list of Automake options.
AC_DEFUN([_AM_SET_OPTIONS],
[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])

# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
# -------------------------------------------
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
AC_DEFUN([_AM_IF_OPTION],
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])

2410
# Copyright (C) 1999-2018 Free Software Foundation, Inc.
2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_PROG_CC_C_O
# ---------------
# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
# to automatically call this.
AC_DEFUN([_AM_PROG_CC_C_O],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([compile])dnl
AC_LANG_PUSH([C])dnl
AC_CACHE_CHECK(
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  # Make sure it works both with $CC and with simple cc.
  # Following AC_PROG_CC_C_O, we do the test twice because some
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  am_cv_prog_cc_c_o=yes
  for am_i in 1 2; do
    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
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      am_cv_prog_cc_c_o=no
      break
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if test "$am_cv_prog_cc_c_o" != yes; then
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   # But if we don't then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   CC="$am_aux_dir/compile $CC"
fi
AC_LANG_POP([C])])

# For backward compatibility.
AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])

2457
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_RUN_LOG(COMMAND)
# -------------------
# Run COMMAND, save the exit status in ac_status, and log it.
# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
AC_DEFUN([AM_RUN_LOG],
[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
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   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
   (exit $ac_status); }])

# Check to make sure that the build environment is sane.    -*- Autoconf -*-

2476
# Copyright (C) 1996-2018 Free Software Foundation, Inc.
2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_SANITY_CHECK
# ---------------
AC_DEFUN([AM_SANITY_CHECK],
[AC_MSG_CHECKING([whether build environment is sane])
# Reject unsafe characters in $srcdir or the absolute working directory
# name.  Accept space and tab only in the latter.
am_lf='
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case `pwd` in
  *[[\\\"\#\$\&\'\`$am_lf]]*)
    AC_MSG_ERROR([unsafe absolute working directory name]);;
esac
case $srcdir in
  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
esac

# Do 'set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   am_has_slept=no
   for am_try in 1 2; do
     echo "timestamp, slept: $am_has_slept" > conftest.file
     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
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	set X `ls -t "$srcdir/configure" conftest.file`
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     if test "$[*]" != "X $srcdir/configure conftest.file" \
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	# If neither matched, then we have a broken ls.  This can happen
	# if, for instance, CONFIG_SHELL is bash and it inherits a
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	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
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     if test "$[2]" = conftest.file || test $am_try -eq 2; then
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     fi
     # Just in case.
     sleep 1
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   done
   test "$[2]" = conftest.file
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then
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else
   AC_MSG_ERROR([newly created file is older than distributed files!
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AC_MSG_RESULT([yes])
# If we didn't sleep, we still need to ensure time stamps of config.status and
# generated files are strictly newer.
am_sleep_pid=
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  am_sleep_pid=$!
fi
AC_CONFIG_COMMANDS_PRE(
  [AC_MSG_CHECKING([that generated files are newer than configure])
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   fi
   AC_MSG_RESULT([done])])
rm -f conftest.file
])

2557
# Copyright (C) 2009-2018 Free Software Foundation, Inc.
2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_SILENT_RULES([DEFAULT])
# --------------------------
# Enable less verbose build rules; with the default set to DEFAULT
# ("yes" being less verbose, "no" or empty being verbose).
AC_DEFUN([AM_SILENT_RULES],
[AC_ARG_ENABLE([silent-rules], [dnl
AS_HELP_STRING(
  [--enable-silent-rules],
  [less verbose build output (undo: "make V=1")])
AS_HELP_STRING(
  [--disable-silent-rules],
  [verbose build output (undo: "make V=0")])dnl
])
case $enable_silent_rules in @%:@ (((
  yes) AM_DEFAULT_VERBOSITY=0;;
   no) AM_DEFAULT_VERBOSITY=1;;
    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
esac
dnl
dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
dnl do not support nested variable expansions.
dnl See automake bug#9928 and bug#10237.
am_make=${MAKE-make}
AC_CACHE_CHECK([whether $am_make supports nested variables],
   [am_cv_make_support_nested_variables],
   [if AS_ECHO([['TRUE=$(BAR$(V))
BAR0=false
BAR1=true
V=1
am__doit:
	@$(TRUE)
.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  am_cv_make_support_nested_variables=yes
else
  am_cv_make_support_nested_variables=no
fi])
if test $am_cv_make_support_nested_variables = yes; then
  dnl Using '$V' instead of '$(V)' breaks IRIX make.
  AM_V='$(V)'
  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
else
  AM_V=$AM_DEFAULT_VERBOSITY
  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
fi
AC_SUBST([AM_V])dnl
AM_SUBST_NOTMAKE([AM_V])dnl
AC_SUBST([AM_DEFAULT_V])dnl
AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
AM_BACKSLASH='\'
AC_SUBST([AM_BACKSLASH])dnl
_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
])

2617
# Copyright (C) 2001-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_STRIP
# ---------------------
# One issue with vendor 'install' (even GNU) is that you can't
# specify the program used to strip binaries.  This is especially
# annoying in cross-compiling environments, where the build's strip
# is unlikely to handle the host's binaries.
# Fortunately install-sh will honor a STRIPPROG variable, so we
# always use install-sh in "make install-strip", and initialize
# STRIPPROG with the value of the STRIP variable (set by the user).
AC_DEFUN([AM_PROG_INSTALL_STRIP],
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
# Installed binaries are usually stripped using 'strip' when the user
# run "make install-strip".  However 'strip' might not be the right
# tool to use in cross-compilation environments, therefore Automake
# will honor the 'STRIP' environment variable to overrule this program.
dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
if test "$cross_compiling" != no; then
  AC_CHECK_TOOL([STRIP], [strip], :)
fi
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
AC_SUBST([INSTALL_STRIP_PROGRAM])])

2645
# Copyright (C) 2006-2018 Free Software Foundation, Inc.
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#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# _AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
# This macro is traced by Automake.
AC_DEFUN([_AM_SUBST_NOTMAKE])

# AM_SUBST_NOTMAKE(VARIABLE)
# --------------------------
# Public sister of _AM_SUBST_NOTMAKE.
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

# Check how to create a tarball.                            -*- Autoconf -*-

2664
# Copyright (C) 2004-2018 Free Software Foundation, Inc.
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