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
58