Makefile: ensure that the config directory is properly built, and that app-mappings doesn't get put in place of etc/.

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@738 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/Makefile

@@ -91,7 +91,9 @@ install-cfg: $(cfg-prefix)/$(cfg-dir)
 				$(cfg-prefix)/$(cfg-dir)sems.conf; \
 		fi
 
-		$(INSTALL-CFG) etc/app_mapping.conf $(cfg-prefix)/$(cfg-dir)etc
+		# Make sure the destination exists and is a directory!
+		mkdir -p $(cfg-prefix)/$(cfg-dir)etc
+		$(INSTALL-CFG) etc/app_mapping.conf $(cfg-prefix)/$(cfg-dir)etc/
 
 install-bin: $(bin-prefix)/$(bin-dir)
 		$(INSTALL-TOUCH) $(bin-prefix)/$(bin-dir)$(NAME)