diff --git a/devel/glib12/files/patch-ac b/devel/glib12/files/patch-ac
new file mode 100644
index 000000000000..35c3f1b53085
--- /dev/null
+++ b/devel/glib12/files/patch-ac
@@ -0,0 +1,15 @@
+--- glib-config.in.orig	Tue Jul 28 23:37:04 1998
++++ glib-config.in	Tue Jul 28 23:39:18 1998
+@@ -42,10 +42,10 @@
+       if test @includedir@ != /usr/include ; then
+         includes=-I@includedir@
+       fi
+-      echo -I@libdir@/glib/include $includes
++      echo $includes
+       ;;
+     --libs)
+-      echo -L@libdir@ -lglib-@LT_RELEASE@
++      echo -L@libdir@ -lglib
+       ;;
+     *)
+       echo "${usage}" 1>&2