Create a dummy module to prevent warnings with gtk2 apps

Makefile.am

@@ -4,7 +4,7 @@ libgtk_vector_screenshot_la_SOURCES = gtk-vector-screenshot.c
 
 libgtk_vector_screenshot_la_LDFLAGS = \
 	-rpath $(moduledir) -module -avoid-version -export-dynamic\
-	$(GTK_LIBS) \
+	$(GTK3_LIBS) \
 	$(X_LIBS) \
 	@LDFLAGS@
 
@@ -15,16 +15,18 @@ module_LTLIBRARIES = libgtk-vector-screenshot.la
 take_vector_screenshot_SOURCES = take-vector-screenshot.c
 
 take_vector_screenshot_LDFLAGS = \
-	$(GTK_LIBS) \
+	$(GTK3_LIBS) \
 	@LDFLAGS@
 
 bin_PROGRAMS = take-vector-screenshot
 
 INCLUDES = \
-	$(GTK_CFLAGS) \
+	$(GTK3_CFLAGS) \
 	$(X_CFLAGS)
 
 take_screenshotdir  = $(datadir)/applications
 dist_take_screenshot_DATA = take-vector-screenshot.desktop
 
 EXTRA_DIST = 52load-gtk-vector-screenshot-gtk-module
+
+SUBDIRS = dummy-module

configure.ac

@@ -31,10 +31,14 @@ AC_C_CONST
 AC_TYPE_SIZE_T
 AC_EXEEXT
 
-PKG_CHECK_MODULES(GTK, [gtk+-3.0 >= 2.90])
+PKG_CHECK_MODULES(GTK3, [gtk+-3.0 >= 2.90])
 AC_SUBST(GTK_CFLAGS)
 AC_SUBST(GTK_LIBS)
 
+PKG_CHECK_MODULES(GTK2, [gtk+-2.0])
+AC_SUBST(GTK3_CFLAGS)
+AC_SUBST(GTK3_LIBS)
+
 PKG_CHECK_MODULES(X, [x11])
 AC_SUBST(X_CFLAGS)
 AC_SUBST(X_LIBS)
@@ -53,6 +57,7 @@ dnl # Output the Makefiles
 dnl ################################################################
 AC_CONFIG_FILES([
 Makefile
+dummy-module/Makefile
 ])
 
 AC_OUTPUT

dummy-module/Makefile.am

@@ -0,0 +1,15 @@
+moduledir = $(libdir)/gtk-2.0/modules
+
+libgtk_vector_screenshot_la_SOURCES = dummy-module.c
+
+libgtk_vector_screenshot_la_LDFLAGS = \
+	-rpath $(moduledir) -module -avoid-version -export-dynamic\
+	$(GTK2_LIBS) \
+	@LDFLAGS@
+
+libgtk_vector_screenshot_la_LIBADD =
+
+module_LTLIBRARIES = libgtk-vector-screenshot.la
+
+INCLUDES = \
+	$(GTK2_CFLAGS)

dummy-module/dummy-module.c

@@ -0,0 +1,28 @@
+/*
+ * © 2011 Joachim Breitner <mail@joachim-breitner.de>
+ *
+ *   This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <gtk/gtk.h>
+
+/*
+ * Module setup function
+ */
+int
+gtk_module_init(gint argc, char *argv[])
+{
+    return FALSE;
+}