Added a set of rules for installing configuration files. You can now say
CONFIG_FILES=a b c
in a Makefile and when you "make install" the files a b and c will get
installed into the $prefix/etc directory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15948 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.rules b/Makefile.rules
index b062427..a4bdb1c 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -455,6 +455,22 @@
 	done
 endif
 
+#---------------------------------------------------------
+# Handle the CONFIG_FILES options
+#---------------------------------------------------------
+ifdef CONFIG_FILES
+install:: $(sysconfdir) install-config-files
+
+$(sysconfdir):
+	$(MKDIR) $(sysconfdir)
+
+install-config-files: $(CONFIG_FILES)
+	$(VERB) echo Installing Configuration Files To $(sysconfdir)
+	$(VERB) for file in $(CONFIG_FILES); do \
+		$(INSTALL) $(SourceDir)/$${file} $(sysconfdir) ; \
+	done
+endif
+
 ###########################################################################
 # Library Build Rules:
 #