From 83afc2bb71622957c062bd2545d76e86fceccf39 Mon Sep 17 00:00:00 2001
From: Anders Svensson <anders@erlang.org>
Date: Tue, 4 Dec 2012 11:18:00 +0100
Subject: Add patch target to makefile

For building unofficial patches.
---
 lib/diameter/src/Makefile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'lib/diameter/src/Makefile')

diff --git a/lib/diameter/src/Makefile b/lib/diameter/src/Makefile
index 3cbcbf536e..a08c204a23 100644
--- a/lib/diameter/src/Makefile
+++ b/lib/diameter/src/Makefile
@@ -104,7 +104,7 @@ endif
 
 ERL_COMPILE_FLAGS += \
 	+'{parse_transform,sys_pre_attributes}' \
-	+'{attribute,insert,app_vsn,$(APP_VSN)}' \
+	+'{attribute,insert,app_vsn,"$(APP_VSN)"}' \
 	+warn_export_vars \
 	+warn_unused_vars \
 	-pa $(ABS_EBIN) \
@@ -123,6 +123,12 @@ gen/diameter_gen_%.erl gen/diameter_gen_%.hrl: dict/%.dia
 
 opt: $(TARGET_FILES)
 
+# Build unofficial patches with some degree of traceability. Refuse to
+# build if there are diffs from HEAD since that defeats the purpose.
+patch:
+	git diff --exit-code HEAD
+	$(MAKE) opt PRE_VSN="-$(shell git rev-list --max-count=1 HEAD | cut -c 1-8)"
+
 debug:
 	@$(MAKE) TYPE=debug opt
 
@@ -267,7 +273,7 @@ depend.mk: depend.sed $(MODULES:%=%.erl) Makefile
 .PHONY: debug opt release_docs_spec release_spec
 .PHONY: $(TARGET_DIRS:%/=%) $(TARGET_DIRS:%/=release_src_%)
 .PHONY: $(EXAMPLE_DIRS:%/=release_examples_%)
-.PHONY: plt dialyze
+.PHONY: plt dialyze patch
 
 # Keep intermediate files.
 .SECONDARY: $(DICT_ERLS) $(DICT_HRLS) gen/$(DICT_YRL:%=%.erl)
-- 
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