[gtk+/native-layout] Update introspection.m4

[Tristan Van Berkom <tvb src gnome org>]

commit a8bf73cfa7bb76176d502e8dad9d17e1a3c98b4c
Author: Johan Dahlin <johan gnome org>
Date:   Mon Dec 14 21:46:42 2009 -0200

    Update introspection.m4
    
    This one includes the INTROSPECTION_MAKEFILE variable
    which we will include in all Makefiles which are going
    to build introspection girs/typelibs

 m4/introspection.m4 |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/m4/introspection.m4 b/m4/introspection.m4
index 6e2c565..589721c 100644
--- a/m4/introspection.m4
+++ b/m4/introspection.m4
@@ -61,6 +61,7 @@ m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
        INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
        INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0`
        INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0`
+       INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection
     fi
     AC_SUBST(INTROSPECTION_SCANNER)
     AC_SUBST(INTROSPECTION_COMPILER)
@@ -69,6 +70,7 @@ m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
     AC_SUBST(INTROSPECTION_TYPELIBDIR)
     AC_SUBST(INTROSPECTION_CFLAGS)
     AC_SUBST(INTROSPECTION_LIBS)
+    AC_SUBST(INTROSPECTION_MAKEFILE)
 
     AM_CONDITIONAL(HAVE_INTROSPECTION, test "x$found_introspection" = "xyes")
 ])