Bas Couwenberg · Bas Couwenberg · Bas Couwenberg · Bas Couwenberg · Bas Couwenberg · Bas Couwenberg
--- a/Makefile.in
+++ b/Makefile.in
-# Makefile.in generated by automake 1.15.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
 # @configure_input@

-# Copyright (C) 1994-2017 Free Software Foundation, Inc.
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.

 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -140,7 +140,7 @@ am__recursive_targets = \
  $(RECURSIVE_CLEAN_TARGETS) \
  $(am__extra_recursive_targets)
 AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
-	cscope distdir dist dist-all distcheck
+	cscope distdir distdir-am dist dist-all distcheck
 am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) \
 	$(LISP)config.h.in
 # Read a list of newline-separated strings from the standard input,
@@ -396,8 +396,8 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	    echo ' $(SHELL) ./config.status'; \
 	    $(SHELL) ./config.status;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles);; \
 	esac;

 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
@@ -539,7 +539,10 @@ distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files

-distdir: $(DISTFILES)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
 	$(am__remove_distdir)
 	test -d "$(distdir)" || mkdir "$(distdir)"
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \

--- a/README.md
+++ b/README.md
@@ -86,4 +86,4 @@ techniques for climate data analysis:

 The NCO project [homepage](http://sf.net/projects/nco)
 points to mailing lists, discussion forums, and instructions to make
-contributing easy. It contains everything about NCO that you may be looking for.
+contributing easy. 
--- a/aclocal.m4
+++ b/aclocal.m4
-# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
+# generated automatically by aclocal 1.16.1 -*- Autoconf -*-

-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.

 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -20,7 +20,7 @@ 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'.])])

-# Copyright (C) 2002-2017 Free Software Foundation, Inc.
+# Copyright (C) 2002-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -32,10 +32,10 @@ To do so, use the procedure documented by the package, typically 'autoreconf'.])
 # generated from the m4 files accompanying Automake X.Y.
 # (This private macro should not be called outside this file.)
 AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.15'
+[am__api_version='1.16'
 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.
-m4_if([$1], [1.15.1], [],
+m4_if([$1], [1.16.1], [],
      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 ])

@@ -51,14 +51,14 @@ m4_define([_AM_AUTOCONF_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],
-[AM_AUTOMAKE_VERSION([1.15.1])dnl
+[AM_AUTOMAKE_VERSION([1.16.1])dnl
 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 -*-

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -110,7 +110,7 @@ am_aux_dir=`cd "$ac_aux_dir" && pwd`

 # AM_CONDITIONAL                                            -*- Autoconf -*-

-# Copyright (C) 1997-2017 Free Software Foundation, Inc.
+# Copyright (C) 1997-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -141,7 +141,7 @@ AC_CONFIG_COMMANDS_PRE(
 Usually this means the macro was only invoked conditionally.]])
 fi])])

-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -332,13 +332,12 @@ _AM_SUBST_NOTMAKE([am__nodep])dnl

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

-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 #
 # 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],
@@ -346,49 +345,41 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  # Older Autoconf quotes --file arguments for eval, but not when files
  # are listed without --file.  Let's play safe and only enable the eval
  # if we detect the quoting.
-  case $CONFIG_FILES in
-  *\'*) eval set x "$CONFIG_FILES" ;;
-  *)   set x $CONFIG_FILES ;;
-  esac
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  AS_CASE([$CONFIG_FILES],
+          [*\'*], [eval set x "$CONFIG_FILES"],
+          [*], [set x $CONFIG_FILES])
  shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
  do
    # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named 'Makefile.in', but
-    # some people rename them; so instead we look at the file content.
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
+    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
    # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
-      dirpart=`AS_DIRNAME("$mf")`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`AS_DIRNAME(["$file"])`
-      AS_MKDIR_P([$dirpart/$fdir])
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`AS_DIRNAME(["$am_mf"])`
+    am_filepart=`AS_BASENAME(["$am_mf"])`
+    AM_RUN_LOG([cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles]) || am_rc=$?
  done
+  if test $am_rc -ne 0; then
+    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).])
+  fi
+  AS_UNSET([am_dirpart])
+  AS_UNSET([am_filepart])
+  AS_UNSET([am_mf])
+  AS_UNSET([am_rc])
+  rm -f conftest-deps.mk
 }
 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS

@@ -397,18 +388,17 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 # -----------------------------
 # This macro should only be invoked once -- use via AC_REQUIRE.
 #
-# This code is only required when automatic dependency tracking
-# is enabled.  FIXME.  This creates each '.P' file that we will
-# need in order to bootstrap the dependency handling code.
+# 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.
 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 [AC_CONFIG_COMMANDS([depfiles],
     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
-     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
-])
+     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])

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

-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -495,8 +485,8 @@ 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:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 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.
@@ -563,7 +553,7 @@ 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
-that behaves properly: <http://www.gnu.org/software/coreutils/>.
+that behaves properly: <https://www.gnu.org/software/coreutils/>.

 If you want to complete the configuration process using your problematic
 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
@@ -605,7 +595,7 @@ for _am_header in $config_headers :; do
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -626,7 +616,7 @@ if test x"${install_sh+set}" != xset; then
 fi
 AC_SUBST([install_sh])])

-# Copyright (C) 2003-2017 Free Software Foundation, Inc.
+# Copyright (C) 2003-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -645,7 +635,7 @@ fi
 rmdir .tst 2>/dev/null
 AC_SUBST([am__leading_dot])])

-# Copyright (C) 1998-2017 Free Software Foundation, Inc.
+# Copyright (C) 1998-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -666,7 +656,7 @@ fi])
 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 # From Jim Meyering

-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -701,7 +691,7 @@ AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])

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

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -709,49 +699,42 @@ AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])

 # AM_MAKE_INCLUDE()
 # -----------------
-# Check to see how make treats includes.
+# Check whether make has an 'include' directive that can support all
+# the idioms we need for our automatic dependency tracking code.
 AC_DEFUN([AM_MAKE_INCLUDE],
-[am_make=${MAKE-make}
-cat > confinc << 'END'
+[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
+cat > confinc.mk << 'END'
 am__doit:
-	@echo this is the am__doit target
+	@echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
-# If we don't find an include directive, just comment out the code.
-AC_MSG_CHECKING([for style of include used by $am_make])
 am__include="#"
 am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from 'make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
-  am__include=include
-  am__quote=
-  _am_result=GNU
-  ;;
-esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   case `$am_make -s -f confmf 2> /dev/null` in #(
-   *the\ am__doit\ target*)
-     am__include=.include
-     am__quote="\""
-     _am_result=BSD
-     ;;
-   esac
+# 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
+  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
+      ['0:this is the am__doit target'],
+      [AS_CASE([$s],
+          [BSD], [am__include='.include' am__quote='"'],
+          [am__include='include' am__quote=''])])
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
  fi
-AC_SUBST([am__include])
-AC_SUBST([am__quote])
-AC_MSG_RESULT([$_am_result])
-rm -f confinc confmf
-])
+done
+rm -f confinc.* confmf.*
+AC_MSG_RESULT([${_am_result}])
+AC_SUBST([am__include])])
+AC_SUBST([am__quote])])

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

-# Copyright (C) 1997-2017 Free Software Foundation, Inc.
+# Copyright (C) 1997-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -792,7 +775,7 @@ fi
 # Obsolete and "removed" macros, that must however still report explicit
 # error messages when used, to smooth transition.
 #
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -819,7 +802,7 @@ AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])

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

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -848,7 +831,7 @@ AC_DEFUN([_AM_SET_OPTIONS],
 AC_DEFUN([_AM_IF_OPTION],
 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])

-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -895,7 +878,7 @@ AC_LANG_POP([C])])
 # For backward compatibility.
 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -914,7 +897,7 @@ AC_DEFUN([AM_RUN_LOG],

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

-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -995,7 +978,7 @@ AC_CONFIG_COMMANDS_PRE(
 rm -f conftest.file
 ])

-# Copyright (C) 2009-2017 Free Software Foundation, Inc.
+# Copyright (C) 2009-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1055,7 +1038,7 @@ AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])

-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1083,7 +1066,7 @@ fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])

-# Copyright (C) 2006-2017 Free Software Foundation, Inc.
+# Copyright (C) 2006-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -1102,7 +1085,7 @@ AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

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

-# Copyright (C) 2004-2017 Free Software Foundation, Inc.
+# Copyright (C) 2004-2018 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,

--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,25 +14,24 @@ install:
        Where-Object pullRequestId -eq $env:APPVEYOR_PULL_REQUEST_NUMBER)[0].buildNumber) { `
        throw "There are newer queued builds for this pull request, failing early." }

-  - cmd: rmdir C:\cygwin /s /q
-
  # Add path, activate `conda` and update conda.
  - cmd: call %CONDA_INSTALL_LOCN%\Scripts\activate.bat
+  - cmd: conda config --set always_yes yes --set changeps1 no --set show_channel_urls true --set auto_update_conda false
+  - cmd: conda update conda
+  # We need to pin conda until https://github.com/conda/conda/issues/6556 is fixed.
+  - cmd: conda config --system --add pinned_packages defaults::conda
+  - cmd: conda config --add channels conda-forge --force

-  # # Add path, activate `conda` and update conda.
-  - cmd: conda.exe config --set always_yes yes --set changeps1 no --set show_channel_urls true
-  - cmd: conda.exe update conda
-  - cmd: conda.exe config --prepend channels conda-forge
+  # Install conda-build.
+  - cmd: conda install conda-build

  - cmd: set PYTHONUNBUFFERED=1

-  - cmd: conda.exe install conda-build
-  - cmd: conda.exe info --all
-  - cmd: conda.exe list
+  - cmd: conda info --all


 # Skip .NET project specific build phase.
 build: off

 test_script:
-  - "conda build conda.recipe"
+  - conda build conda.recipe
--- a/bld/nco.spec
+++ b/bld/nco.spec
@@ -2,17 +2,17 @@
 # http://cvs.fedoraproject.org/viewvc/devel/nco/nco.spec?view=co

 Name:           nco
-Version:        4.7.3
+Version:        4.7.4
 Release:        1%{?dist}
 Summary:        Programs that manipulate netCDF files
 Group:          Applications/Engineering
 License:        GPL3
 URL:            http://nco.sf.net/

-# Obtain NCO version 4.7.3-1 tar.gz from Sourceforge using CVS:
+# Obtain NCO version 4.7.4-1 tar.gz from Sourceforge using CVS:
 # cvs -d:pserver:anonymous@nco.cvs.sf.net:/cvsroot/nco login
-# cvs -z3 -d:pserver:anonymous@nco.cvs.sf.net:/cvsroot/nco co -r nco-4.7.3-1 -d nco-%{version} nco
-# tar czf nco-%{version}.tar.gz --exclude='nco-4.7.3/debian*' --exclude='.cvsignore' --exclude=ncap_lex.c --exclude='ncap_yacc.[ch]' ./nco-%{version}
+# cvs -z3 -d:pserver:anonymous@nco.cvs.sf.net:/cvsroot/nco co -r nco-4.7.4-1 -d nco-%{version} nco
+# tar czf nco-%{version}.tar.gz --exclude='nco-4.7.4/debian*' --exclude='.cvsignore' --exclude=ncap_lex.c --exclude='ncap_yacc.[ch]' ./nco-%{version}
 Source0:        nco-%{version}.tar.gz
 #Patch0:		nco_install_C_headers.patch
 #Patch1:         nco_find_udunits-dat.patch
@@ -22,7 +22,7 @@ BuildRequires:  automake, autoconf, libtool
 BuildRequires:  netcdf, netcdf-devel
 BuildRequires:  udunits, udunits-devel
 # Required for ncap:
-BuildRequires:  bison, flex
+BuildRequires:  flex
 # Required for ncap2:
 BuildRequires:  gsl, gsl-devel
 #BuildRequires:  antlr antlr-c++-devel
@@ -108,6 +108,9 @@ fi
 # %{_libdir}/libnco++.so

 %changelog
+* Fri Apr 06 2018 Charlie Zender <zender@uci.edu> - 4.7.4-1
+- new upstream 4.7.4
+
 * Fri Mar 03 2018 Charlie Zender <zender@uci.edu> - 4.7.3-1
 - new upstream 4.7.3


--- a/bld/nco_dst.pl
+++ b/bld/nco_dst.pl
@@ -5,20 +5,20 @@

 # Usage:
 # Export tagged, public versions
-# /usr/bin/scp ${DATA}/nco-4.7.3.tar.gz zender,nco@web.sf.net:/home/project-web/nco/htdocs/src
-
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln nco-4.7.3 # Build, do not release on SF
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln --sf nco-4.7.3 # Build, release on SF
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --nst_all nco-4.7.3 # Install, do not build
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln --nst_all nco-4.7.3 # Build and install
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --acd_cnt nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --acd_prs nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --cgd_cnt nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --cray_prs nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --bbl_cnt nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --blk_cnt nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --dat_cnt nco-4.7.3
-# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --ute_prs nco-4.7.3
+# /usr/bin/scp ${DATA}/nco-4.7.4.tar.gz zender,nco@web.sf.net:/home/project-web/nco/htdocs/src
+
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln nco-4.7.4 # Build, do not release on SF
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln --sf nco-4.7.4 # Build, release on SF
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --nst_all nco-4.7.4 # Install, do not build
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --bld --cln --nst_all nco-4.7.4 # Build and install
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --acd_cnt nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --acd_prs nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --cgd_cnt nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --cray_prs nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --bbl_cnt nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --blk_cnt nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --dat_cnt nco-4.7.4
+# ${HOME}/nco/bld/nco_dst.pl --dbg=2 --cln --ute_prs nco-4.7.4

 # Export daily snapshot
 # ${HOME}/nco/bld/nco_dst.pl --dbg=2 
@@ -256,7 +256,7 @@ if($bld){
 # Set up FTP server
    chdir $dst_pth_pfx or die "$prg_nm: ERROR unable to chdir to $dst_pth_pfx: $!\n"; # $! is system error string
    cmd_prc("$cp_cmd $doc_fl ./$dst_vrs/doc"); # Copy derived documentation to source directory
-    cmd_prc("$tar_cmd cvzf $dst_fl --exclude='nco-4.7.3/debian*' --exclude='.cvsignore' --exclude=ncap_lex.c --exclude=ncap_yacc.[ch] ./$dst_vrs"); # Create gzipped tarfile
+    cmd_prc("$tar_cmd cvzf $dst_fl --exclude='nco-4.7.4/debian*' --exclude='.cvsignore' --exclude=ncap_lex.c --exclude=ncap_yacc.[ch] ./$dst_vrs"); # Create gzipped tarfile
    cmd_prc("$rsh_cmd $www_mch $rm_cmd $www_drc/src/$dst_fl"); # Remove any distribution with same name
    if($dly_snp){cmd_prc("$rsh_cmd $www_mch $rm_cmd -r $www_drc/src/nco-????????.tar.gz");} # Remove previous daily snapshots from WWW server
    cmd_prc("$rcp_cmd $dst_fl $www_mch:$www_drc/src"); # Copy local tarfile to WWW server

--- a/bm/NCO_rgr.pm
+++ b/bm/NCO_rgr.pm
@@ -452,7 +452,9 @@ if($USER eq 'zender'){
    $#tst_cmd=0; # Reset array

 # ncap2 #13
-    $dsc_sng="Run script to to test casting, hyperslabbing and intrinsic functions";
+# ncap2 -h -O -v -S ~/nco/data/bsc_tst.nco ~/nco/data/in.nc ~/foo.nc
+# ncks -C -H --trd -v nbr_err_ttl -s '%d' ~/foo.nc
+    $dsc_sng="Run script to to test casting, hyperslabbing and intrinsic functions (Requires GSL)";
    $tst_cmd[0]="ncap2 -h -O $fl_fmt $nco_D_flg -v -S '../data/bsc_tst.nco' $in_pth_arg in.nc %tmp_fl_00%";
    $tst_cmd[1]="ncks -C -H --trd -v nbr_err_ttl -s '%d' %tmp_fl_00%";
    $tst_cmd[2]="0";
@@ -479,8 +481,9 @@ if($USER eq 'zender'){
    NCO_bm::tst_run(\@tst_cmd);
    $#tst_cmd=0; # Reset array

-
 # ncap2 #16
+# ncap2 -h -O -v -S ~/nco/data/string.nco ~/nco/data/in_4.nc ~/foo.nc
+# ncks -C -H --trd -v nbr_err_ttl -s '%d' ~/foo.nc
    $dsc_sng="Run script to to test ncap2 NC_STRING handling (failure expected 2017-06-21)";
    $tst_cmd[0]="ncap2 -h -O $fl_fmt $nco_D_flg -v -S '../data/string.nco' $in_pth_arg in_4.nc %tmp_fl_00%";
    $tst_cmd[1]="ncks -C -H --trd -v nbr_err_ttl -s '%d' %tmp_fl_00%";
@@ -498,9 +501,6 @@ if($USER eq 'zender'){
    NCO_bm::tst_run(\@tst_cmd);
    $#tst_cmd=0; # Reset array
    
-
-
-    
    if($dodap eq "FALSE"){
 ####################
 #### ncatted tests #
@@ -3029,6 +3029,19 @@ if($RUN_NETCDF4_TESTS_VERSION_GE_431){
    NCO_bm::tst_run(\@tst_cmd);
    $#tst_cmd=0; # Reset array

+# ncks #123
+# ncks -O -v lon4_var,lat4_var ~/nco/data/in_grp_3.nc ~/foo.nc
+    $dsc_sng="netCDF4 test extraction of OOG CF2 vars declared in lon4_var:bounds and lat4_var:coordinates" ;
+    $tst_cmd[0]="ncks -h -O $fl_fmt $nco_D_flg -v lon4_var,lat4_var $in_pth_arg in_grp_3.nc %tmp_fl_01%";
+    $tst_cmd[1]="ncks -h -O $nco_D_flg -v 'blon?','blat?' -G : %tmp_fl_01% %tmp_fl_02%";
+    $tst_cmd[2]="ncap2 -h -O $fl_fmt $nco_D_flg -s 'if(exists(blon1) && exists(blon2) && exists(blon3) && exists(blon4) && exists(blat1) && exists(blat2) && exists(blat3) && exists(blat4)) err=1; else err=0;' %tmp_fl_02% %tmp_fl_03%";
+    $tst_cmd[3]="ncks -O -C -H --trd -v err -s '%d' %tmp_fl_03%";
+    $tst_cmd[4]=1;
+    $tst_cmd[5]="SS_OK";
+    NCO_bm::tst_run(\@tst_cmd);
+    $#tst_cmd=0; # Reset array
+
+    
 #####################
 #### ncpdq tests #### -OK !
 #####################
@@ -5933,7 +5946,7 @@ if($RUN_NETCDF4_TESTS_VERSION_GE_431){
 #ncrename -O -d lev,z -d lat,y -d lon,x ~/nco/data/in_grp.nc ~/foo.nc
 #ncks -H --trd -s %d -v one ~/foo.nc
 # Check for corruption after simultaneously renaming multiple dimensions in netCDF4 file
-    $dsc_sng="netCDF4: Simultaneously rename multiple dimensions (netCDF bug, will require Unidata to fix)";
+    $dsc_sng="netCDF4: Simultaneously rename multiple dimensions (netCDF bug, requires Unidata fix https://github.com/Unidata/netcdf-c/issues/597)";
    $tst_cmd[0]="ncrename -O $fl_fmt $nco_D_flg -d lev,z -d lat,y -d lon,x $in_pth_arg in_grp.nc %tmp_fl_00%";
    $tst_cmd[1]="ncks -H --trd -s %d -v one %tmp_fl_00%";
    $tst_cmd[2]="1";

--- a/configure
+++ b/configure
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for NCO netCDF Operators 4.7.3.
+# Generated by GNU Autoconf 2.69 for NCO netCDF Operators 4.7.4.
 #
 # Report bugs to <nco-bugs@lists.sourceforge.net>.
 #
@@ -592,8 +592,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='NCO netCDF Operators'
 PACKAGE_TARNAME='nco'
-PACKAGE_VERSION='4.7.3'
-PACKAGE_STRING='NCO netCDF Operators 4.7.3'
+PACKAGE_VERSION='4.7.4'
+PACKAGE_STRING='NCO netCDF Operators 4.7.4'
 PACKAGE_BUGREPORT='nco-bugs@lists.sourceforge.net'
 PACKAGE_URL=''
  
@@ -703,7 +703,6 @@ am__nodep
 AMDEPBACKSLASH
 AMDEP_FALSE
 AMDEP_TRUE
-am__quote
 am__include
 DEPDIR
 OBJEXT
@@ -792,7 +791,8 @@ PACKAGE_VERSION
 PACKAGE_TARNAME
 PACKAGE_NAME
 PATH_SEPARATOR
-SHELL'
+SHELL
+am__quote'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
@@ -1388,7 +1388,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures NCO netCDF Operators 4.7.3 to adapt to many kinds of systems.
+\`configure' configures NCO netCDF Operators 4.7.4 to adapt to many kinds of systems.
  
 Usage: $0 [OPTION]... [VAR=VALUE]...
  
@@ -1459,7 +1459,7 @@ fi
  
 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of NCO netCDF Operators 4.7.3:";;
+     short | recursive ) echo "Configuration of NCO netCDF Operators 4.7.4:";;
   esac
  cat <<\_ACEOF
  
@@ -1621,7 +1621,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-NCO netCDF Operators configure 4.7.3
+NCO netCDF Operators configure 4.7.4
 generated by GNU Autoconf 2.69
  
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2487,7 +2487,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
  
-It was created by NCO netCDF Operators $as_me 4.7.3, which was
+It was created by NCO netCDF Operators $as_me 4.7.4, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
  
  $ $0 $@
@@ -3256,7 +3256,7 @@ fi
 # End pvmgetarch Compatibility
  
 # Use automake to create Makefiles
-am__api_version='1.15'
+am__api_version='1.16'
  
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -3742,7 +3742,7 @@ fi
  
 # Define the identity of the package.
 PACKAGE='nco'
- VERSION='4.7.3'
+ VERSION='4.7.4'
  
  
 cat >>confdefs.h <<_ACEOF
@@ -3772,8 +3772,8 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
  
 # For better backward compatibility.  To be removed once Automake 1.9.x
 # dies out for good.  For more background, see:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 mkdir_p='$(MKDIR_P)'
  
 # We need awk for the "check" target (and possibly the TAP driver).  The
@@ -3824,7 +3824,7 @@ 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
-that behaves properly: <http://www.gnu.org/software/coreutils/>.
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
  
 If you want to complete the configuration process using your problematic
 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
@@ -4700,45 +4700,45 @@ DEPDIR="${am__leading_dot}deps"
  
 ac_config_commands="$ac_config_commands depfiles"
  
-
-am_make=${MAKE-make}
-cat > confinc << 'END'
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
 am__doit:
-	@echo this is the am__doit target
+	@echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
-# If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
-$as_echo_n "checking for style of include used by $am_make... " >&6; }
 am__include="#"
 am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from 'make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
-  am__include=include
-  am__quote=
-  _am_result=GNU
-  ;;
-esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   case `$am_make -s -f confmf 2> /dev/null` in #(
-   *the\ am__doit\ target*)
-     am__include=.include
-     am__quote="\""
-     _am_result=BSD
+# 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
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
     ;;
 esac
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
  fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
-$as_echo "$_am_result" >&6; }
-rm -f confinc confmf
+done
+rm -f confinc.* confmf.*
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+$as_echo "${_am_result}" >&6; }
  
 # Check whether --enable-dependency-tracking was given.
 if test "${enable_dependency_tracking+set}" = set; then :
@@ -21496,7 +21496,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by NCO netCDF Operators $as_me 4.7.3, which was
+This file was extended by NCO netCDF Operators $as_me 4.7.4, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
  
  CONFIG_FILES    = $CONFIG_FILES
@@ -21562,7 +21562,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-NCO netCDF Operators config.status 4.7.3
+NCO netCDF Operators config.status 4.7.4
 configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"
  
@@ -21681,7 +21681,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 #
 # INIT-COMMANDS
 #
-AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
  
  
 # The HP-UX ksh and POSIX shell print the target directory to stdout
@@ -22676,29 +22676,35 @@ $as_echo "$as_me: executing $ac_file commands" >&6;}
  # Older Autoconf quotes --file arguments for eval, but not when files
  # are listed without --file.  Let's play safe and only enable the eval
  # if we detect the quoting.
-  case $CONFIG_FILES in
-  *\'*) eval set x "$CONFIG_FILES" ;;
-  *)   set x $CONFIG_FILES ;;
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
 esac
  shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
  do
    # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named 'Makefile.in', but
-    # some people rename them; so instead we look at the file content.
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
    # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
-      dirpart=`$as_dirname -- "$mf" ||
-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$mf" : 'X\(//\)[^/]' \| \
-	 X"$mf" : 'X\(//\)$' \| \
-	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$mf" |
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -22716,53 +22722,48 @@ $as_echo X"$mf" |
 	    q
 	  }
 	  s/.*/./; q'`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`$as_dirname -- "$file" ||
-$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$file" : 'X\(//\)[^/]' \| \
-	 X"$file" : 'X\(//\)$' \| \
-	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\/\)$/{
+	  /^X\/\(\/\/\)$/{
 	    s//\1/
 	    q
 	  }
-	  /^X\(\/\).*/{
+	  /^X\/\(\/\).*/{
 	    s//\1/
 	    q
 	  }
 	  s/.*/./; q'`
-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
  done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
 }
 ;;
    "libtool":C)

--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@
 # 20170808: Choose between traditional version and Git-based version
 # If Git, consider that Linux dynamic libraries will have full messy name, MacOSX will not
 # https://stackoverflow.com/questions/43526939/how-to-insert-git-based-version-in-autoconf-managed-project
-AC_INIT([NCO netCDF Operators],[4.7.3],[nco-bugs@lists.sourceforge.net],[nco])
+AC_INIT([NCO netCDF Operators],[4.7.4],[nco-bugs@lists.sourceforge.net],[nco])

 # Print GNU copyright in configure script
 AC_COPYRIGHT

--- a/configure.eg
+++ b/configure.eg
@@ -239,8 +239,8 @@ Commands for LINUX are the only ones "regularly" used after ~2010
 # Yan Liu <yanliu@illinois.edu> # NCSA Maintainer = Yan Liu (github: yanliu-chn)
 # https://nersc.service-now.com/navpage.do # NERSC Maintainer = Yun (Helen) He
 # https://www.olcf.ornl.gov/support/submit-ticket # OLCF
-# Subject: Please upgrade NCO module to 4.7.3
-# Request: NCO 4.7.3 was released 9/18 and contains many features of interest to your ACME users. Please upgrade the system NCO module to 4.7.3 and make that the default NCO module. Thanks!
+# Subject: Please upgrade NCO module to 4.7.4
+# Request: NCO 4.7.4 was released 9/18 and contains many features of interest to your ACME users. Please upgrade the system NCO module to 4.7.4 and make that the default NCO module. Thanks!

 zender@dust:~/nco$ pvmgetarch;uname -a;~/nco/autobld/config.guess
 LINUX
@@ -306,6 +306,23 @@ cd ~/nco/cmake
 cmake .. -DCMAKE_INSTALL_PREFIX=${HOME} -DNETCDF_INCLUDE:PATH=${NETCDF_INC} -DNETCDF_LIBRARY:FILE=${NETCDF_LIB}/libnetcdf.a -DHDF5_LIBRARY:FILE=${NETCDF_LIB}/libhdf5.a -DHDF5_HL_LIBRARY:FILE=${NETCDF_LIB}/libhdf5.a # Glace
 make install				

+# gcc/g++ Zender uses this to develop/install/update netCDF4-enabled NCO in personal directories on acme1:
+# Sysadmin upgrade request: 
+# Latest sysadmin-compiled module usage: 
+# Personal recipe last modified: 20180405
+# Personal recipe last used successfully: 20180405
+export GNU_TRP=`~/nco/autobld/config.guess`
+cd ~/nco;/bin/rm -f *.${GNU_TRP}.foo;make distclean
+export PATH=/usr/local/uvcdat/2016-01-21/Externals/bin:${PATH}
+export LD_LIBRARY_PATH=/usr/local/uvcdat/2016-01-21/Externals/lib64:${LD_LIBRARY_PATH}
+ANTLR_ROOT=${HOME} CC='gcc' CXX='g++' NETCDF_ROOT='/usr/local/uvcdat/2016-01-21/Externals' UDUNITS2_PATH='/usr/local/uvcdat/2016-01-21/Externals' ./configure --prefix=${HOME} --bindir=${MY_BIN_DIR} --datadir=${HOME}/nco/data --libdir=${MY_LIB_DIR} --mandir=${HOME}/nco/man > nco.configure.${GNU_TRP}.foo 2>&1
+/bin/cp -f config.log nco.config.log.${GNU_TRP}.foo
+/bin/cp -f libtool nco.libtool.${GNU_TRP}.foo
+make clean;make > nco.make.${GNU_TRP}.foo 2>&1
+make check >> nco.make.${GNU_TRP}.foo 2>&1
+make install >> nco.make.${GNU_TRP}.foo 2>&1
+scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU_TRP}.foo nco.make.${GNU_TRP}.foo dust.ess.uci.edu:Sites/nco/rgr
+
 # gcc/g++ Zender uses this to develop/install/update netCDF4-enabled NCO in personal directories on aims4:
 # Sysadmin upgrade request: 
 # Latest sysadmin-compiled module usage: 
@@ -328,7 +345,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Latest ticket: AREQ0159277 on 20170526
 # Latest sysadmin-compiled module usage: soft add +nco-4.6.7 # 20170526
 # Personal recipe last modified: 20161223
-# Personal recipe last used successfully: 20171221
+# Personal recipe last used successfully: 20180302
 # fails to link to udunits...why?
 # nm -a /soft/udunits/2.1.21/lib/libudunits2.a | grep ut_read_xml
 # First use: 20161223 Latest use: 20161223
@@ -351,7 +368,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Latest ticket: fxm on fxm
 # Latest sysadmin-compiled module usage: module load nco/4.6.9 # 20171002
 # Personal recipe last modified: 20180112
-# Personal recipe last used successfully: 20180112 (except ncap2, which would require backporting to intel 16.0.3 to get gsl)
+# Personal recipe last used successfully: 20180302 (except ncap2, which would require backporting to intel 16.0.3 to get gsl)
 module purge
 module load ncarenv intel ncarcompilers mpt netcdf
 module add intel
@@ -385,7 +402,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Sysadmin upgrade request: https://nersc.service-now.com/navpage.do
 # Latest sysadmin-compiled module usage: module load nco/4.6.7 # 20170612 (without ncap2)
 # Personal recipe last modified: 20180125
-# Personal recipe last used successfully: 20171221
+# Personal recipe last used successfully: 20180302
 module load szip
 module load gsl
 module load udunits
@@ -406,7 +423,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Latest ticket: INC0106410 on 20170804
 # Latest sysadmin-compiled module usage: module load nco/4.6.7 # 20170809 (with ncap2)
 # Personal recipe last modified: 20170807
-# Personal recipe last used successfully: 20171221
+# Personal recipe last used successfully: 20180302
 module load szip
 module load gsl
 module load udunits2
@@ -441,7 +458,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Latest ticket: 358890 on 20170526
 # Latest sysadmin-compiled module usage: module load nco/4.6.6 # 20170515
 # Personal recipe last modified: 20170814
-# Personal recipe last used successfully: 20171221
+# Personal recipe last used successfully: 20180302
 export LINUX_CC='gcc -std=c99 -pedantic -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_SOURCE'
 export LINUX_CXX='g++ -std=c++11'
 export LINUX_FC='gfortran'
@@ -499,7 +516,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 # Latest ticket: 347675 on 20170316
 # Latest sysadmin-compiled module usage: module load nco/4.6.6 # 20170411
 # Personal recipe last modified: 20170814
-# Personal recipe last used successfully: 20171221
+# Personal recipe last used successfully: 20180302
 export LINUX_CC='gcc -std=c99 -pedantic -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_SOURCE'
 module add gcc # change GCC from v 4.3.4 to 4.9.0
 #module add gsl # not used yet
@@ -777,7 +794,7 @@ scp nco.configure.${GNU_TRP}.foo nco.config.log.${GNU_TRP}.foo nco.libtool.${GNU
 export GNU_TRP=`~/nco/autobld/config.guess`
 cd ~/nco;/bin/rm -f *.${GNU_TRP}.foo;make distclean
 # 20170810 Produce core dumps and symbols, turn-on -Wall, without using --enable-debug-custom
-CC='clang' CFLAGS='-Wall -DNCO_ABORT_ON_ERROR' CXX='clang -std=c++11' CXXFLAGS='-Wall' NETCDF_INC='/usr/include' NETCDF_LIB='/usr/lib' ./configure --enable-debug-symbols --prefix=${HOME} --bindir=${MY_BIN_DIR} --datadir=${HOME}/nco/data --libdir=${MY_LIB_DIR} --mandir=${HOME}/nco/man > nco.configure.${GNU_TRP}.foo 2>&1
+CC='clang' CFLAGS='-Wall -DNCO_ABORT_ON_ERROR' CXX='clang -std=c++11' CXXFLAGS='-Wall' NETCDF_INC='/usr/local/include' NETCDF_LIB='/usr/local/lib' ./configure --enable-debug-symbols --prefix=${HOME} --bindir=${MY_BIN_DIR} --datadir=${HOME}/nco/data --libdir=${MY_LIB_DIR} --mandir=${HOME}/nco/man > nco.configure.${GNU_TRP}.foo 2>&1
 /bin/cp -f config.log nco.config.log.${GNU_TRP}.foo
 /bin/cp -f libtool nco.libtool.${GNU_TRP}.foo
 make clean;make > nco.make.${GNU_TRP}.foo 2>&1

--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -2,17 +2,39 @@

 test_data = big.nc in.nc in_rec_zero.nc

-test_data_netCDF4 = in_4c.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc obs.nc mdl_1.nc mdl_2.nc mdl_3.nc hdn.nc mrd.nc split.nc
+test_symlink = 85.nc 86.nc 87.nc 88.nc 89.nc h0001.nc h0002.nc h0003.nc
+
+test_data_netCDF4 = in_4c.nc in_4.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc obs.nc mdl_1.nc mdl_2.nc mdl_3.nc hdn.nc mrd.nc split.nc ref_utf8.nc

 # netCDF build rules
 %.nc : %.cdl
 	-@PATH_TO_NCGEN@ -o $@ $< 

+85.nc : in.nc
+	-ln -s -f $< $@
+86.nc : in.nc
+	-ln -s -f $< $@
+87.nc : in.nc
+	-ln -s -f $< $@
+88.nc : in.nc
+	-ln -s -f $< $@
+89.nc : in.nc
+	-ln -s -f $< $@
+h0001.nc : in.nc
+	-ln -s -f $< $@
+h0002.nc : in.nc
+	-ln -s -f $< $@
+h0003.nc : in.nc
+	-ln -s -f $< $@
+
 in_4c.nc : in.cdl
 	-@abs_top_builddir@/src/nco/ncks -O -7 --cnk_dmn time,10 in.nc $@
 # ncgen default chunksize for time = 4 MB produces ~200 MB in_4c.nc file. Avoid that!
 #	-@PATH_TO_NCGEN@ -k hdf5-nc3 -o $@ $< 

+in_4.nc : in.cdl
+	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 
+
 in_grp.nc : in_grp.cdl
 	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 

@@ -73,8 +95,10 @@ mdl_3.nc : mdl_3.cdl
 split.nc : split.cdl
 	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 

+ref_utf8.nc : ref_utf8.cdl
+	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 

-all: ${test_data} ${test_data_netCDF4}
+all: ${test_data} ${test_symlink} ${test_data_netCDF4}

 # Autoconf/automake instructions for scripts:
 # https://www.gnu.org/software/automake/manual/html_node/Scripts.html
@@ -88,7 +112,7 @@ EXTRA_DIST = big.cdl dsm.cdl hdn.cdl mrd.cdl in.cdl in_grp.cdl in_grp_1.cdl in_g
 DISTCLEANFILES = foo*

 # Build procedure produces these files:
-CLEANFILES = 85.nc 86.nc 87.nc 88.nc 89.nc big.nc foo.nc h0001.nc h0002.nc h0003.nc in.nc in_1.nc in_2.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc hdn.nc mrd.nc dsm.nc split.nc lrg_bm1.nc lrg_bm.nc obs.nc mdl.nc mdl2.nc mdl_1.nc mdl_2.nc mdl_3.nc buggy.nc in_rec_zero.nc ../src/nco_c++/in.nc
+CLEANFILES = 85.nc 86.nc 87.nc 88.nc 89.nc big.nc foo.nc h0001.nc h0002.nc h0003.nc in.nc in_4.nc in_1.nc in_2.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc hdn.nc mrd.nc dsm.nc split.nc lrg_bm1.nc lrg_bm.nc obs.nc mdl.nc mdl2.nc mdl_1.nc mdl_2.nc mdl_3.nc buggy.nc in_rec_zero.nc ../src/nco_c++/in.nc

 MAINTAINERCLEANFILES = Makefile.in


--- a/data/Makefile.in
+++ b/data/Makefile.in
-# Makefile.in generated by automake 1.15.1 from Makefile.am.
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
 # @configure_input@

-# Copyright (C) 1994-2017 Free Software Foundation, Inc.
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.

 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -303,7 +303,8 @@ top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 test_data = big.nc in.nc in_rec_zero.nc
-test_data_netCDF4 = in_4c.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc obs.nc mdl_1.nc mdl_2.nc mdl_3.nc hdn.nc mrd.nc split.nc
+test_symlink = 85.nc 86.nc 87.nc 88.nc 89.nc h0001.nc h0002.nc h0003.nc
+test_data_netCDF4 = in_4c.nc in_4.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc obs.nc mdl_1.nc mdl_2.nc mdl_3.nc hdn.nc mrd.nc split.nc ref_utf8.nc

 # Autoconf/automake instructions for scripts:
 # https://www.gnu.org/software/automake/manual/html_node/Scripts.html
@@ -316,7 +317,7 @@ EXTRA_DIST = big.cdl dsm.cdl hdn.cdl mrd.cdl in.cdl in_grp.cdl in_grp_1.cdl in_g
 DISTCLEANFILES = foo*

 # Build procedure produces these files:
-CLEANFILES = 85.nc 86.nc 87.nc 88.nc 89.nc big.nc foo.nc h0001.nc h0002.nc h0003.nc in.nc in_1.nc in_2.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc hdn.nc mrd.nc dsm.nc split.nc lrg_bm1.nc lrg_bm.nc obs.nc mdl.nc mdl2.nc mdl_1.nc mdl_2.nc mdl_3.nc buggy.nc in_rec_zero.nc ../src/nco_c++/in.nc
+CLEANFILES = 85.nc 86.nc 87.nc 88.nc 89.nc big.nc foo.nc h0001.nc h0002.nc h0003.nc in.nc in_4.nc in_1.nc in_2.nc in_grp.nc in_grp_1.nc in_grp_2.nc in_grp_3.nc in_grp_4.nc in_grp_5.nc in_grp_6.nc in_grp_7.nc in_grp_8.nc cmip5.nc hdn.nc mrd.nc dsm.nc split.nc lrg_bm1.nc lrg_bm.nc obs.nc mdl.nc mdl2.nc mdl_1.nc mdl_2.nc mdl_3.nc buggy.nc in_rec_zero.nc ../src/nco_c++/in.nc
 MAINTAINERCLEANFILES = Makefile.in
 all: all-am

@@ -338,8 +339,8 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	  *config.status*) \
 	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
 	  *) \
-	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
-	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
 	esac;

 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
@@ -398,7 +399,10 @@ ctags CTAGS:
 cscope cscopelist:


-distdir: $(DISTFILES)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
 	list='$(DISTFILES)'; \
@@ -556,11 +560,31 @@ uninstall-am: uninstall-dist_binSCRIPTS
 %.nc : %.cdl
 	-@PATH_TO_NCGEN@ -o $@ $< 

+85.nc : in.nc
+	-ln -s -f $< $@
+86.nc : in.nc
+	-ln -s -f $< $@
+87.nc : in.nc
+	-ln -s -f $< $@
+88.nc : in.nc
+	-ln -s -f $< $@
+89.nc : in.nc
+	-ln -s -f $< $@
+h0001.nc : in.nc
+	-ln -s -f $< $@
+h0002.nc : in.nc
+	-ln -s -f $< $@
+h0003.nc : in.nc
+	-ln -s -f $< $@
+
 in_4c.nc : in.cdl
 	-@abs_top_builddir@/src/nco/ncks -O -7 --cnk_dmn time,10 in.nc $@
 # ncgen default chunksize for time = 4 MB produces ~200 MB in_4c.nc file. Avoid that!
 #	-@PATH_TO_NCGEN@ -k hdf5-nc3 -o $@ $< 

+in_4.nc : in.cdl
+	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 
+
 in_grp.nc : in_grp.cdl
 	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 

@@ -621,7 +645,10 @@ mdl_3.nc : mdl_3.cdl
 split.nc : split.cdl
 	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 

-all: ${test_data} ${test_data_netCDF4}
+ref_utf8.nc : ref_utf8.cdl
+	-@PATH_TO_NCGEN@ -k netCDF-4 -o $@ $< 
+
+all: ${test_data} ${test_symlink} ${test_data_netCDF4}

 test: check


--- a/data/buggy.cdl
+++ b/data/buggy.cdl
@@ -74,7 +74,7 @@ netcdf buggy {
 nan_val:note6 = "It is too troublesome to distribute in.cdl with references to NaNs because users always build with old netCDF versions that do not support it. So just comment out nan's for now.";
 nan_val:note7 = "20170505 For testing without missing values"; 

- float nan_val_dbl;
+ double nan_val_dbl;
 nan_val_dbl:long_name = "Intended for scalar representation of IEEE NaN without missing values";
 nan_val_dbl:note = "20120308 Apparently netCDF ncgen chokes on variable names of nan and NaN";
 nan_val_dbl:note2 = "20120330 netCDF ncgen on AIX/bluefire chokes on variable/attribute values of nan";

--- a/data/in_grp_3.cdl
+++ b/data/in_grp_3.cdl
@@ -125,10 +125,7 @@ netcdf in_grp_3 {
    lev_wgt=9,2,1;
  } // end g8

- 
-  //
  //g16 
-  //
  // Test variables and dimensions in and out of scope
  // Use case of variable in scope of dimension:
  // dimension /lon 
@@ -136,9 +133,7 @@ netcdf in_grp_3 {
  // Use case of variable NOT in scope of dimension:
  // variable /lon
  // dimension /g1/lon
-  //
  // Test dimensions with no associated coordinate variable
-  //
  group: g16 { 
    dimensions:
    lat=2;
@@ -146,12 +141,17 @@ netcdf in_grp_3 {
    lon2=4; // dimension that does NOT have a coordinate variable anywhere 
    lon3=4; // dimension that has a coordinate "out of scope" (with group depth greater than the variable that uses the coordinate, g16g3g3)
    lon4=2; // dimension that has several intermediate "in scope" coordinates
+    lat4=2;
    variables:
    float lat1(lat);
    float lon2_var(lon2); //variable with no associated coordinate variable
+    float blon2;
+    float blat3;
    data:
    lat1=0.,1.;
    lon2_var=0.,1.,2.,3.; 
+    blon2=8.0;
+    blat3=3.0;
    
    group: g16g1 { 
     dimensions:
@@ -160,9 +160,11 @@ netcdf in_grp_3 {
     // MSA test -v lon1_var -d lon1,3.0, result is 3.
     float lon1(lon1);  //coordinate variable /g16/g16g1/lon1 that has dimension (/g16/lon1) in scope
     float lon1_var(lon1); // variable /g16/g16g1/lon1_var that has dimension (/g16/lon1) in scope *and* coordinate (/g16/g16g1/lon1) in scope
+     float blat4;
     data:
     lon1=0.,1.,2.,3.;
     lon1_var=0.,1.,2.,3.;
+     blat4=4.0;
      } // end g16g1 

    group: g16g2 { 
@@ -194,9 +196,10 @@ netcdf in_grp_3 {
     variables:
     // intermediate "in scope" coordinate
     float lon4(lon4);
+     float blon3;
     data:
     lon4=1.,2.;     
-     
+     blon3=8.0;
      group: g16g4g1 { 
      variables:
      // intermediate "in scope " coordinate
@@ -206,10 +209,29 @@ netcdf in_grp_3 {
      
        group: g16g4g1g1 { 
        variables:
-        //variable that uses one of the intermediate "in scope " coordinate
+        // variable that uses one of the intermediate "in scope" coordinates
+	float blon4;
+	float blat2;
        float lon4_var(lon4);
+        // check retrieval of bounds var(s) -scope, scope, absolute path, relative path
+        lon4_var:bounds="blon4 blon3 /g16/blon2 ../g16g4g1g1/g16g4g1g1g1/blon1";
        data:
+	blon4=10.0;
+	blat2=2.0;
        lon4_var=0.,1.;
+
+        group: g16g4g1g1g1 {
+	 variables:
+	  float lat4_var(lat4);
+          // check retrieval of "coordinate vars" current directory, relative path, absolute path, absolute path
+          lat4_var:coordinates="./blat1 ../blat2 /g16/blat3 /g16/g16g1/blat4"; 
+	  float blon1;
+	  float blat1;
+	data:
+	  lat4_var=10.0,11.0;
+	  blon1=1.0;
+	  blat1=1.0;
+	} // end g16g4g1g1g1
       } // end g16g4g1g1
     } // end g16g4g1
    } // end g16g4

--- a/data/ncap.in
+++ b/data/ncap.in
 // $Header$ -*-C-*-

-// Purpose: ncap netCDF Arithmetic Processor Demonstration/Test Script
+// Purpose: ncap2 netCDF Arithmetic Processor Demonstration/Test Script
+// Adopted from an ncap (=ncap1) Demonstration/Test Script deprecated in 201803

-/* Format of valid ncap script:
+/* Format of valid ncap2 script:
   Syntax is C-like, and C++ comments also valid
   Mathematical expressions use forward algebraic notation
   Statements in scripts are terminated with semi-colons
@@ -12,82 +13,82 @@
 //#include ncap.in2

 /* Usage:
-   ncap -O -D 1 -v -S ${HOME}/nco/data/ncap.in ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -O -D 1 -d lat,0 -d lon,0 -d lev,0 -s "a9=three_dmn_var" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -O -D 1 -v -s "upk=pck*pck@scale_factor+pck@add_offset" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -O -D 1 -v -s "upk=pck" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -O -D 1 -v -s "pck=pack(three_dmn_var)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -O -D 1 -s "prs_mdp[time,lat,lon,lev]=P0*hyam+hybm*PS" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -v -S ${HOME}/nco/data/ncap.in ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -d lat,0 -d lon,0 -d lev,0 -s "a9=three_dmn_var" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -v -s "upk=pck*pck@scale_factor+pck@add_offset" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -v -s "upk=pck" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -v -s "pck=pack(three_dmn_var)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -O -D 1 -s "prs_mdp[time,lat,lon,lev]=P0*hyam+hybm*PS" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
   ncks -H -m ${HOME}/nco/data/foo.nc | m */

-/* ncap is a handy attribute editor:
+/* ncap2 is a handy attribute editor:
   Define new attribute:
-   ncap -O -v -s "one@new=2*att_var@double_att;one@test=two@long_name;" in.nc foo.nc
+   ncap2 -O -v -s "one@new=2*att_var@double_att;one@test=two@long_name;" in.nc foo.nc

   Re-define existing attribute in terms of itself:
-   ncap -O -v -s "att_var@double_att=att_var@double_att^2.0" in.nc foo.nc
+   ncap2 -O -v -s "att_var@double_att=att_var@double_att^2.0" in.nc foo.nc

   Computation is performed at highest precision of RHS expression:
-   ncap -O -v -s "one@new=att_var@short_att * att_var@double_att - att_var@double_att" in.nc foo.nc 
+   ncap2 -O -v -s "one@new=att_var@short_att * att_var@double_att - att_var@double_att" in.nc foo.nc 

   Use math functions (default result is of type double):
-   ncap -O -v -s "one@new=cos(1.0e-4) - 1" in.nc foo.nc
+   ncap2 -O -v -s "one@new=cos(1.0e-4) - 1" in.nc foo.nc
   Result is now of type float:
-   ncap -O -v -s "one@new=cos(1.0e-4f)^2+sin(1.0e-4f)^2" in.nc foo.nc
+   ncap2 -O -v -s "one@new=cos(1.0e-4f)^2+sin(1.0e-4f)^2" in.nc foo.nc

   Assign string to attribute (use \" to escape quote from shell):
-   ncap -O -v -s "one@new=\"hello world\"" in.nc foo.nc
+   ncap2 -O -v -s "one@new=\"hello world\"" in.nc foo.nc

   Add strings, and use C escape characters:
-   ncap -O -v -s "one@new=\"Hello\t\"+\"World\n\"" in.nc foo.nc
+   ncap2 -O -v -s "one@new=\"Hello\t\"+\"World\n\"" in.nc foo.nc

   Set an attribute equal to a 0-dimensional variable:
-   ncap -O -v -s "one@new=one" in.c foo.nc
+   ncap2 -O -v -s "one@new=one" in.c foo.nc

   Set an attribute equal to a 1-dimensional variable:
-   ncap -O -v -s "one@new=mss_val" in.nc foo.nc 
+   ncap2 -O -v -s "one@new=mss_val" in.nc foo.nc 

-/* The ncap operators works with netCDF variables and attributes
+/* The ncap2 operators works with netCDF variables and attributes
   Multiply an existing co-ordinate variable by 20:
-   ncap -O -v -s "lat=20*lat" in.nc foo.nc
+   ncap2 -O -v -s "lat=20*lat" in.nc foo.nc

   Average variables of mixed types (result is of type double):
-   ncap -O -v -s "average=(three_dmn_rec_var+three_dmn_var_dbl+three_dmn_var_int)/3" in.nc foo.nc
+   ncap2 -O -v -s "average=(three_dmn_rec_var+three_dmn_var_dbl+three_dmn_var_int)/3" in.nc foo.nc

   Take log (to base e) of absolute value of variable:
-   ncap -O -v -s "abslog=log(abs(three_dmn_var_dbl))" in.nc foo.nc
+   ncap2 -O -v -s "abslog=log(abs(three_dmn_var_dbl))" in.nc foo.nc

   The available maths functions are: 
   acos(), asin(), atan(), cos(), exp(), erf(), erfc(), gamma(), log(), log10(), sin(), sqrt(), tan();
   If argument precision is "less" than type float then result is type float
   If argument is type double then result is also double
   This also applies to pow() function, e.g, pow(var1,3.5) or var1^3.5, e.g.,
-   ncap -O -v -s "modulus=pow(sin(three_dmn_rec_var),2)+cos(three_dmn_rec_var)^2 - 1" in.nc foo.nc */
+   ncap2 -O -v -s "modulus=pow(sin(three_dmn_rec_var),2)+cos(three_dmn_rec_var)^2 - 1" in.nc foo.nc */

 /* Modulus operator % can also be used with attributes and variables
   Attributes are converted to variable's type prior to operation
   Result of modulus is of type float:
-   ncap -O -v -s "mod=three_dmn_rec_var % 4.0" in.nc foo.nc
+   ncap2 -O -v -s "mod=three_dmn_rec_var % 4.0" in.nc foo.nc

   Result of modulus is of type int:
-   ncap -O -v -s "testa=three_dmn_var_int % 1.0f" in.nc foo.nc
+   ncap2 -O -v -s "testa=three_dmn_var_int % 1.0f" in.nc foo.nc

   Unary +/- signs work intuitively with attributes and variables:
-   ncap -O -v -s "sign=-three_dmn_rec_var" in.nc foo.nc */
+   ncap2 -O -v -s "sign=-three_dmn_rec_var" in.nc foo.nc */

 /* Packing and unpacking:
   Manual unpacking is relatively straightforward but works only with -D 3
-   because automatic unpacking is now default on ncap. It is now broken
+   because automatic unpacking is now default on ncap2. It is now broken
   because ncap_var_write() tries to write bogus attributes automatically
   because pck_ram is set in pck_dsk_inq()
-   ncap -D 3 -O -v -s "upk=pck*pck@scale_factor+pck@add_offset" -s "upk_arr=pck_arr*pck_arr@scale_factor+pck_arr@add_offset" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 3 -O -v -s "upk=pck*pck@scale_factor+pck@add_offset" -s "upk_arr=pck_arr*pck_arr@scale_factor+pck_arr@add_offset" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
   Automatic unpacking works for scalars, not for arrays
-   ncap -D 1 -O -v -s "upk=pck" -s "upk_arr=pck_arr" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 1 -O -v -s "upk=pck" -s "upk_arr=pck_arr" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
   Automatic packing does not yet work
-   ncap -D 1 -O -v -s "pck=pack(ORO)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -D 1 -O -v -s "pck=pack(upk)" -s "pck_arr=pack(upk_arr)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -D 1 -O -v -s "pck=pack(pck)" -s "pck_arr=pack(pck_arr)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncap -D 1 -O -v -s "upk=unpack(pack(unpack(pack(pck))))" -s "upk_arr=unpack(pack(unpack(pack(pck_arr))))" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 1 -O -v -s "pck=pack(ORO)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 1 -O -v -s "pck=pack(upk)" -s "pck_arr=pack(upk_arr)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 1 -O -v -s "pck=pack(pck)" -s "pck_arr=pack(pck_arr)" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
+   ncap2 -D 1 -O -v -s "upk=unpack(pack(unpack(pack(pck))))" -s "upk_arr=unpack(pack(unpack(pack(pck_arr))))" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
   ncks -H -m ${HOME}/nco/data/foo.nc | m
   ncks -H -v pck,pck_arr -m ${HOME}/nco/data/foo.nc | m
   ncks -H -v upk,upk_arr -m ${HOME}/nco/data/foo.nc | m

--- a/data/ncclimo
+++ b/data/ncclimo
@@ -28,7 +28,7 @@
 # Irvine, CA 92697-3100

 # Prerequisites: Bash, NCO
-# Script could use other shells, e.g., dash (Debian default) after rewriting function definition and looping constructs
+# Script could use other shells, e.g., dash (Debian default) after rewriting function definitions and loops

 # Source: https://github.com/nco/nco/tree/master/data/ncclimo
 # Documentation: http://nco.sf.net/nco.html#ncclimo
@@ -367,9 +367,9 @@ fi # !hrd_pth && !NCO_PATH_OVERRIDE
 #          fml_nm_XX_YYYYMM_YYYYMM.nc (examples include '' (default), 'control', 'experiment')
 #          By default, fml_nm=$caseid. Use fml_nm instead of $caseid to simplify long names, avoid overlap, etc.
 # hst_nm:  History volume name referring to the $hst_nm character sequence used in history tape names:
-#          caseid.mdl_nm.hst_nm.YYYY-MM.nc (examples include 'h0' (default, works for cam, clm), 'h1', 'h' (for cism), 'hist' (for mpascice, mpaso)
+#          caseid.mdl_nm.hst_nm.YYYY-MM.nc (examples include 'h0' (default, works for cam, clm), 'h1', 'h' (for cism), 'hist' (for mpascice, mpasseaice, mpaso)
 # mdl_nm:  Model name referring to the character sequence $mdl_nm used in history tape names:
-#          caseid.mdl_nm.h0.YYYY-MM.nc (examples include 'cam' (default), 'clm2', 'cam2', 'cism', 'mpaso', 'mpascice', 'pop')
+#          caseid.mdl_nm.h0.YYYY-MM.nc (examples include 'cam' (default), 'clm2', 'cam2', 'cism', 'mpascice', 'mpasseaice', 'mpaso', 'pop')
 # nco_opt: String of options to pass-through to NCO, e.g.,
 #          '-D 2 -7 -L 1' for NCO debugging level 2, netCDF4-classic output, compression level 1
 #          '--no_tmp_fl -x' to skip temporary files, turn extraction into exclusion list
@@ -457,7 +457,7 @@ inp_psn='No' # [sng] Input file list from positional arguments
 inp_std='No' # [sng] Input file list from stdin
 job_nbr=2 # [nbr] Job simultaneity for parallelism
 lnk_flg='Yes' # [sng] Link E3SM/ACME-climo to AMWG-climo filenames
-mdl_nm='cam' # [sng] Model name (e.g., 'cam', 'cam2', 'cice', 'cism', 'clm', 'clm2', 'ice', 'mpascice', 'mpaso', 'ocn')
+mdl_nm='cam' # [sng] Model name (e.g., 'cam', 'cam2', 'cice', 'cism', 'clm', 'clm2', 'ice', 'mpascice', 'mpasseaice', 'mpaso', 'ocn')
 mdl_typ='cesm' # [sng] Model type ('cesm', 'mpas') (for regridding)
 mpi_flg='No' # [sng] Parallelize over nodes
 nco_opt='--no_tmp_fl' # [sng] NCO options (e.g., '-7 -D 1 -L 1')
@@ -862,7 +862,7 @@ let yr_nbr=${yr_end_rth}-${yr_srt_rth}+1

 # Derived variables
 out_nm=${caseid}
-if [ "${caseid}" = 'hist' ] || [ "${mdl_nm}" = 'mpaso' ] || [ "${mdl_nm}" = 'mpascice' ]; then
+if [ "${caseid}" = 'hist' ] || [ "${mdl_nm}" = 'mpaso' ] || [ "${mdl_nm}" = 'mpascice' ] || [ "${mdl_nm}" = 'mpasseaice' ]; then
    mdl_typ='mpas'
    nm_typ='mpas'
 fi # !caseid
@@ -991,8 +991,8 @@ if [ -n "${rgr_map}" ]; then
 	exit 1
    fi # ! -f
    if [ "${mdl_nm}" = 'clm2' ]; then
-	printf "${spt_nm}: ERROR ${spt_nm} refuses to regrid ALM/CLM output because doing so correctly requires additional steps required for sub-gridscale (SGS) data. These steps can currently only be performed by invoking ncremap with extra arguments.\n"
-	printf "${spt_nm}: HINT Use ${spt_nm} to generate climatology/time-series files from ALM/CLM, and then issue a separate ncremap command with the extra information to regrid those files. To regrid ALM/CLM data, ncremap requires specification of the source and destination grid files (with -s grd_src and -g grd_dst, respectively).\n"
+	printf "${spt_nm}: ERROR ${spt_nm} refuses to regrid ALM/CLM/ELM output because doing so correctly requires additional steps required for sub-gridscale (SGS) data. These steps can currently only be performed by invoking ncremap with extra arguments.\n"
+	printf "${spt_nm}: HINT Use ${spt_nm} to generate climatology/time-series files from ALM/CLM/ELM, and then issue a separate ncremap command with the extra information to regrid those files. To regrid ALM/CLM/ELM data, ncremap requires specification of the source and destination grid files (with -s grd_src and -g grd_dst, respectively).\n"
 	printf "${spt_nm}: INFO This restriction prevents users from inadvertently generating regridded output that is up to a few percent wrong. Naively regridding sub-gridscale output will generate inaccurate results in all destination gridcells that contain contributions gridcells whose surface fraction (e.g., landfrac) is less than 1.0 on the source grid. Using ncremap ensures that values from sub-gridcell features like coastlines and islands are treated correctly. For more information, contact Charlie.\n"
 	exit 1
    fi # !mdl_nm
@@ -1102,7 +1102,7 @@ if [ "${sbs_flg}" = 'Yes' ]; then
    fi # !fl_rmd
    if [ ${yr_sbs} -ne ${yr_nbr} ]; then
 	# Sanity check that number of files specified matches number expected from date switches
-	printf "${spt_nm}: ERROR ${fl_nbr} files specified (via stdin pipe, positional, or input directory) expected to contain ${yr_sbs} years of data but date options specified ${yr_nbr} years of data\n"
+	printf "${spt_nm}: ERROR ${fl_nbr} files specified (via stdin pipe, positional, or input directory) expected to contain ${yr_sbs} years of data but date options specify ${yr_nbr} years of data\n"
 	printf "${spt_nm}: HINT Number of files at ${fpy} files-per-year must match number of years implied by arguments to start- and end-year switches (--yr_srt=${yr_srt} and --yr_end=${yr_end}, respectively)\n"
 	exit 1
    fi # !yr_sbs

--- a/data/ncremap
+++ b/data/ncremap
--- a/data/ref_utf8.cdl
+++ b/data/ref_utf8.cdl
+netcdf test_utf8 {
+
+dimensions:
+  d2 = 2;
+  xā = 2 ;
+  㼿y = 2 ;
+  Καλημέρα = 18 ;
+
+variables:
+  int 􍐪(xā, 㼿y) ;
+  char Καλημέρα(Καλημέρα) ;
+	Καλημέρα:units = "Καλημέρα" ;
+  string s(xā);
+  	string s:satt = "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ";
+
+  string vs(d2);		
+
+  // global attributes:
+     :Gā = "ā㼿y􍐪" ;
+
+data:
+ 􍐪 =
+  1, 2,
+  3, 4 ;
+
+ Καλημέρα = "\316\232\316\261\316\273\316\267\316\274\341\275\263\317\201\316\261" ;
+
+ s = "キャク", "龥";   
+
+ vs = "Καλημέα" , "abc";
+
+}
--- a/data/tst.nco
+++ b/data/tst.nco
 // $Header$ -*-C-*-

-// Purpose: ncap script for geophysical computations
+// Purpose: ncap2 script for geophysical computations

 /* Usage:
-   ncap -v -O -D 1 -S ${HOME}/nco/data/tst.nco ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc
-   ncks -C -H -u -v mxdgr_lcl ${HOME}/nco/data/foo.nc */
+   ncap2 -v -O -D 1 -S ${HOME}/nco/data/tst.nco ${HOME}/nco/data/in.nc ~/foo.nc
+   ncks -C -H -u -v mxdgr_lcl ~/foo.nc */

 rds_earth=6.370e+06; // (6.370e+06) [m] Radius of sphere of same volume as Earth
 rds_earth@long_name="Radius of sphere of same volume as Earth";
@@ -51,8 +51,8 @@ dmt_max=10.0; // [m] Maximum diameter
 dmt_max@long_name="Maximum diameter";
 dmt_max@units="meter";

-// ncap -v -O -s "gsd=2.0;dmt_vma=2.5;dmt_min=5.0;dmt_max=10.0;ovr_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd))))));" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc;ncks -H -C -u ${HOME}/nco/data/foo.nc
-ovr_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd)))))); // [frc] Fraction of lognormal distribution between endpoints
+// ncap2 -v -O -s "gsd=2.0;dmt_vma=2.5;dmt_min=5.0;dmt_max=10.0;ovr_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd))))));" ${HOME}/nco/data/in.nc ${HOME}/nco/data/foo.nc;ncks -H -C -u ${HOME}/nco/data/foo.nc
+ovr_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd)))); // [frc] Fraction of lognormal distribution between endpoints
 ovr_frc@long_name="Fraction of lognormal distribution between endpoints";
 ovr_frc@units="fraction";


--- a/debian/changelog
+++ b/debian/changelog
+nco (4.7.4-1~bpo9+1) stretch-backports; urgency=medium
+
+  * Rebuild for stretch-backports.
+
+ -- Bas Couwenberg <sebastic@debian.org>  Fri, 13 Apr 2018 07:14:05 +0200
+
+nco (4.7.4-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Update Vcs-* URLs for Salsa.
+  * Add patch to fix spelling errors.
+
+ -- Bas Couwenberg <sebastic@debian.org>  Sat, 07 Apr 2018 16:02:48 +0200
+
 nco (4.7.3-1~bpo9+1) stretch-backports; urgency=medium

  * Rebuild for stretch-backports.