only touch file to install if module is built

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@487 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/plug-in/Makefile.app_module

@@ -42,8 +42,10 @@ deps: $(depends) $(extra_depends)
 .PHONY: install
 install: all $(extra_install)
 	mkdir -p $(modules-prefix)/$(modules-dir)
-	$(INSTALL-TOUCH) $(modules-prefix)/$(modules-dir)/$(lib_name) ; \
-	$(INSTALL-MODULES) $(lib_name) $(modules-prefix)/$(modules-dir)
+	if [ -f "$(lib_name)" ]; then \
+	 $(INSTALL-TOUCH) $(modules-prefix)/$(modules-dir)/$(lib_name) ; \
+	 $(INSTALL-MODULES) $(lib_name) $(modules-prefix)/$(modules-dir); \
+	fi
 
 .PHONY: install-cfg
 install-cfg: