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-rw-r--r--m4/pkg.m456
1 files changed, 56 insertions, 0 deletions
diff --git a/m4/pkg.m4 b/m4/pkg.m4
new file mode 100644
index 00000000..874a120c
--- /dev/null
+++ b/m4/pkg.m4
@@ -0,0 +1,56 @@
+
+dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
+dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
+dnl also defines GSTUFF_PKG_ERRORS on error
+AC_DEFUN(PKG_CHECK_MODULES, [
+ succeeded=no
+
+ if test -z "$PKG_CONFIG"; then
+ AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+ fi
+
+ if test "$PKG_CONFIG" = "no" ; then
+ echo "*** The pkg-config script could not be found. Make sure it is"
+ echo "*** in your path, or set the PKG_CONFIG environment variable"
+ echo "*** to the full path to pkg-config."
+ echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
+ else
+ if ! $PKG_CONFIG --atleast-pkgconfig-version 0.7.0; then
+ echo "*** Your version of pkg-config is too old. You need version 0.7.0 or newer."
+ echo "*** See http://www.freedesktop.org/software/pkgconfig"
+ else
+ AC_MSG_CHECKING(for $2)
+
+ if $PKG_CONFIG --exists "$2" ; then
+ AC_MSG_RESULT(yes)
+ succeeded=yes
+
+ AC_MSG_CHECKING($1_CFLAGS)
+ $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
+ AC_MSG_RESULT($$1_CFLAGS)
+
+ AC_MSG_CHECKING($1_LIBS)
+ $1_LIBS=`$PKG_CONFIG --libs "$2"`
+ AC_MSG_RESULT($$1_LIBS)
+ else
+ $1_CFLAGS=""
+ $1_LIBS=""
+ ## If we have a custom action on failure, don't print errors, but
+ ## do set a variable so people can do so.
+ $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+ ifelse([$4], ,echo $$1_PKG_ERRORS,)
+ fi
+
+ AC_SUBST($1_CFLAGS)
+ AC_SUBST($1_LIBS)
+ fi
+ fi
+
+ if test $succeeded = yes; then
+ ifelse([$3], , :, [$3])
+ else
+ ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
+ fi
+])
+
+