106 lines
3.6 KiB
Plaintext
106 lines
3.6 KiB
Plaintext
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# extra_pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
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#
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# Copyright (c) 2008-2012 Erik de Castro Lopo <erikd@mega-nerd.com>
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# Copyright (c) 2004 Scott James Remnant <scott@netsplit.com>.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# As a special exception to the GNU General Public License, if you
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# distribute this file as part of a program that contains a
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# configuration script generated by Autoconf, you may include it under
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# the same distribution terms that you use for the rest of that program.
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# --------------------------------------------------------------
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# PKG_CHECK_MOD_VERSION(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
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# [ACTION-IF-NOT-FOUND])
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#
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# This is a very slight modification to the macro PKG_CHECK_MODULES that
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# is in the original pkg.m4 file. It prints the versions in the checking
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# message (erikd@mega-nerd.com).
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AC_DEFUN([PKG_CHECK_MOD_VERSION],
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
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AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
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AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
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pkg_failed=no
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AC_MSG_CHECKING([for $2 ])
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_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
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_PKG_CONFIG([$1][_LIBS], [libs], [$2])
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pkg_link_saved_CFLAGS=$CFLAGS
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pkg_link_saved_LIBS=$LIBS
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eval "pkg_CFLAGS=\${pkg_cv_[]$1[]_CFLAGS}"
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eval "pkg_LIBS=\${pkg_cv_[]$1[]_LIBS}"
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CFLAGS="$CFLAGS $pkg_CFLAGS"
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LIBS="$LIBS $pkg_LIBS"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]], [puts ("")])], pkg_link=yes, pkg_link=no)
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CFLAGS=$pkg_link_saved_CFLAGS
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LIBS=$pkg_link_saved_LIBS
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AS_IF([test x$pkg_link = xno], [
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AS_ECHO_N(["link failed ... "])
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pkg_failed=yes
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])
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m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
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and $1[]_LIBS to avoid the need to call pkg-config.
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See the pkg-config man page for more details.])
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if test $pkg_failed = yes; then
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_PKG_SHORT_ERRORS_SUPPORTED
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if test $_pkg_short_errors_supported = yes; then
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$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
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else
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$1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
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fi
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# Put the nasty error message in config.log where it belongs
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echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
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ifelse([$4], , [AC_MSG_ERROR(dnl
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[Package requirements ($2) were not met:
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$$1_PKG_ERRORS
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Consider adjusting the PKG_CONFIG_PATH environment variable if you
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installed software in a non-standard prefix.
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_PKG_TEXT
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])],
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[AC_MSG_RESULT([no])
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$4])
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elif test $pkg_failed = untried; then
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ifelse([$4], , [AC_MSG_FAILURE(dnl
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[The pkg-config script could not be found or is too old. Make sure it
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is in your PATH or set the PKG_CONFIG environment variable to the full
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path to pkg-config.
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_PKG_TEXT
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To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
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[$4])
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else
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$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
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$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
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AC_MSG_RESULT([yes])
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ifelse([$3], , :, [$3])
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fi[]dnl
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])# PKG_CHECK_MOD_VERSION
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