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# CW_LIB_LIBGLIB2 m4 macro -- this file is part of cwautomacros.
# Copyright (C) 2006 Carlo Wood <carlo@alinoe.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 2, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
# As a special exception, the author gives unlimited permission to copy,
# distribute and modify the configure scripts that are the output of
# by a tool like autoconf when using these macros as input. 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 this
# file appears in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the cwautomacros project.
# CW_LIB_LIBGLIB2([ACTION_IF_FOUND], [ACTION-IF-NOT-FOUND])
# -------------------------------------------
#
# This macro tests for the usability of libglib.
#
# The default ACTION_IF_FOUND is to set GLIB2_FLAGS and GLIB2_LIBS.
# The default ACTION-IF-NOT-FOUND is to print an error message.
AC_DEFUN([CW_LIB_LIBGLIB2], [
AC_CACHE_CHECK([if libglib is available], cw_cv_lib_libglib, [
# Check if we have libglib
AC_LANG_SAVE
AC_LANG_C
cw_save_LIBS="$LIBS"
LIBS="$LIBS `pkg-config --libs glib-2.0`"
AC_LINK_IFELSE([AC_LANG_CALL([], [g_string_new])], [cw_cv_lib_libglib=yes], [cw_cv_lib_libglib=no])
LIBS="$cw_save_LIBS"
AC_LANG_RESTORE])
if test "$cw_cv_lib_libglib" = "no"; then
m4_default([$2], [dnl
AC_MSG_ERROR([
Cannot find (a working) libglib.
Perhaps you need to add its location to PKG_CONFIG_PATH and LD_LIBRARY_PATH, for example:
PKG_CONFIG_PATH=/opt/install/lib/pkgconfig LD_LIBRARY_PATH=/opt/install/lib ./configure])])
else
m4_default([$1], [dnl
GLIB2_FLAGS="`pkg-config --cflags glib-2.0`"
GLIB2_LIBS="`pkg-config --libs glib-2.0`"])
AC_SUBST(GLIB2_FLAGS)
AC_SUBST(GLIB2_LIBS)
fi])
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