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-rw-r--r--m4/pkg.m457
1 files changed, 57 insertions, 0 deletions
diff --git a/m4/pkg.m4 b/m4/pkg.m4
new file mode 100644
index 000000000..f2bfc2d49
--- /dev/null
+++ b/m4/pkg.m4
@@ -0,0 +1,57 @@
1
2dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
3dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
4dnl also defines GSTUFF_PKG_ERRORS on error
5AC_DEFUN([PKG_CHECK_MODULES], [
6 succeeded=no
7
8 if test -z "$PKG_CONFIG"; then
9 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
10 fi
11
12 if test "$PKG_CONFIG" = "no" ; then
13 echo "*** The pkg-config script could not be found. Make sure it is"
14 echo "*** in your path, or set the PKG_CONFIG environment variable"
15 echo "*** to the full path to pkg-config."
16 echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
17 else
18 PKG_CONFIG_MIN_VERSION=0.9.0
19 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
20 AC_MSG_CHECKING(for $2)
21
22 if $PKG_CONFIG --exists "$2" ; then
23 AC_MSG_RESULT(yes)
24 succeeded=yes
25
26 AC_MSG_CHECKING($1_CFLAGS)
27 $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
28 AC_MSG_RESULT($$1_CFLAGS)
29
30 AC_MSG_CHECKING($1_LIBS)
31 $1_LIBS=`$PKG_CONFIG --libs "$2"`
32 AC_MSG_RESULT($$1_LIBS)
33 else
34 $1_CFLAGS=""
35 $1_LIBS=""
36 ## If we have a custom action on failure, don't print errors, but
37 ## do set a variable so people can do so.
38 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
39 ifelse([$4], ,echo $$1_PKG_ERRORS,)
40 fi
41
42 AC_SUBST($1_CFLAGS)
43 AC_SUBST($1_LIBS)
44 else
45 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
46 echo "*** See http://www.freedesktop.org/software/pkgconfig"
47 fi
48 fi
49
50 if test $succeeded = yes; then
51 ifelse([$3], , :, [$3])
52 else
53 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])
54 fi
55])
56
57