modules: move Modules.am stuff to genmf

This way, common.am can be included also in directories without a
Modules.am file.

modules/common.am

@@ -34,10 +34,3 @@ AM_LDFLAGS = -rpath '$(libvlcdir)' \
 	-shrext $(LIBEXT) \
 	-no-undefined \
 	$(LTLIBVLCCORE) $(top_builddir)/compat/libcompat.la
-
-include $(srcdir)/Modules.am
-
-if MAINTAINER_MODE
-$(srcdir)/Makefile.am: $(srcdir)/Modules.am $(top_srcdir)/modules/genmf
-	$(AM_V_GEN)cd \$(top_srcdir) && \$(SHELL) modules/genmf $(dir)
-endif

modules/genmf

@@ -45,6 +45,12 @@ libvlc_LTLIBRARIES = ${libvlc_ltlibs}
 EXTRA_LTLIBRARIES = ${extra_ltlibs}
 
 include \$(top_srcdir)/modules/common.am
+include \$(srcdir)/Modules.am
+
+if MAINTAINER_MODE
+\$(srcdir)/Makefile.am: \$(srcdir)/Modules.am \$(top_srcdir)/modules/genmf
+	\$(AM_V_GEN)cd \\\$(top_srcdir) && \\\$(SHELL) modules/genmf \$(dir)
+endif
 
 EOF
   for mod in $mods