* configure.ac: Define GPG_ERROR_CONFIG_LIBS and
	GPG_ERROR_CONFIG_CFLAGS.
	Add src/gpg-error-config to config files.
	* src/Makefile.am (EXTRA_DIST): Add gpg-error-config.in and
	gpg-error.m4.
	(bin_SCRIPTS): New variable.
	(m4datadir, m4data_DATA): New variables.
	* src/gpg-error-config.in: New file.
	* src/gpg-error.m4: New file.

	* src/gpg-error.h (gpg_err_make_from_errno): Fix implementation.

	* src/gpg-error.h (gpg_err_code_t): Add GPG_ERR_SIG_EXPIRED.
	(err-codes.h.in): Likewise.

	* src/gpg-error.h (gpg_error_from_errno): Change return type to
	gpg_error_t.

	* src/gpg-error.h (gpg_err_code_t): Add GPG_ERR_INV_ENGINE,
	GPG_ERR_PUBKEY_NOT_TRUSTED, GPG_ERR_DECRYPT_FAILED,
	GPG_ERR_KEY_EXPIRED.
	(gpg_make_error): Rename to gpg_err_make.
	(gpg_error): Use here.
	* tests/t-strerror.c (main): And here.
	(gpg_make_error_from_errno): Rename to gpg_err_make_from_errno.

	* src/gpg-error.h (gpg_make_error_from_errno): New inline function.
	(gpg_error_from_errno): Likewise.

	* src/code-from-errno.c (gpg_err_code_from_errno): Handle the case
	of no error at all.

	* src/gpg-error.h (gpg_err_source_t): Add GPG_ERR_SOURCE_USER_1 to
	GPG_ERR_SOURCE_USER_4.
	(gpg_err_code_t): Add GPG_ERR_USER_1 to GPG_ERR_USER_16.
	* src/err-sources.h.in: Likewise.
	* src/err-codes.h.in: Likewise.

	* src/gpg-error.h: Fix description of gpg_err_code_to_errno
	(i.e. substitute `ERR' with `CODE').
	* src/code-to-errno.c: Likewise.

	* tests/t-strerror.c: Include <gpg-error.h> instead of
	<gpg/error.h>.

	* src/strerror.c: Include <string.h>.

	* src/gpg-error.h (gpg_err_code_t): Remove GPG_ERR_FILE_READ,
	GPG_ERR_FILE_WRITE, GPG_ERR_FILE_OPEN, GPG_ERR_FILE_CREATE,
	GPG_ERR_FILE_CLOSE, GPG_ERR_FILE_DELETE, GPG_ERR_FILE_EXISTS,
	GPG_ERR_FILE, GPG_ERR_IO, GPG_ERR_OUT_OF_CORE, GPG_ERR_READ_ERROR,
	GPG_ERR_WRITE_ERROR.
	* src/err-codes.h.in: Likewise.

	* src/Makefile.am (EXTRA_DIST): Add err-sources.h and err-codes.h.

	* src/mkerrcodes1.awk: New file.
	* src/mkerrcodes2.awk: New file.
	* src/mkerrnos.awk: New file.
	* src/errnos.in: New file.
	* src/code-from-errno.c: New file.
	* src/code-to-errno.c: New file.
	* src/Makefile.am (libgpg_error_la_SOURCES): Remove err-sources.h
	and err-codes.h.  Add code-to-errno.c and code-from-errno.c.
	(code-to-errno.h): New target.
	(code-from-errno.h): Likewise.
	(EXTRA_DIST): Add mkerrnos.awk, errnos.in, and mkerrcodes1.awk.
	(BUILT_SOURCES): Add code-to-errno.h and code-from-errno.h.
	(CLEANFILES): Likewise.
	* src/strerror.c (gpg_strerror): Use strerror for system errors.
	* src/err-codes.h.in: Add 16382 (Unknown system error).
	* src/gpg-error.h (gpg_err_code_t): Add system errors.
	(GPG_ERR_CODE_DIM): Change to 32768.
	(GPG_ERR_SYSTEM_ERROR): New macro.
	(gpg_err_code_from_errno): New prototype.
	(gpg_err_code_to_errno): Likewise.

	* src/Makefile.am (nobase_include_HEADERS): Rename target to ...
	(include_HEADERS): ... this.  Change file to gpg-error.h
	(libgpg_error_la_SOURCES): Change gpg/error.h to gpg-error.h.
	* src/gpg/error.h: Move to ...
	* src/gpg-error.h: ... here.  New file.
	* src/strerror.c: Include <gpg-error.h>, not <gpg/error.h>.
	* src/strsource.c: Likewise.

	* src/gpg/error.h (gpg_error_t): Change type to unsigned int, not
	long.

	* src/gpg/error.h (gpg_make_error): Only OR in the error source if
	there is an error, this allows to test for success with "if (!err)"
	and similar tests.

	* src/mkstrtable.awk: Add exception clause to license about the
	output of the script.
	* configure.ac: Change license to LGPL 2.1 or later.
	* Makefile.am: Likewise.
	* src/Makefile.am: Likewise.
	* src/err-codes.h.in: Likewise.
	* src/err-sources.h.in: Likewise.
	* src/strsource.c: Likewise.
	* src/strerror.c: Likewise.
	* src/gpg/error.h: Likewise.
	* tests/Makefile.am: Likewise.

	* src/mkstrtable.awk: New variable HEADER.  Copy input until first
	line with an actual code and description occurs.
	* src/err-codes.h.in: Uncomment license, so it is copied into the
	output.
	* src/err-sources.h.in: Likewise.

	* Initial check-in.