From 201b62fc68398b37decbe0fde24dc94486db244e Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Mon, 14 Aug 2017 08:04:53 -0400
Subject: Support NO_REBUILD=1 for testing without rebuild

---
 Makefile | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 3a53e93e..47dfbed1 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,11 @@
 # anywhere.  From the top level, the "all", "check", and "clean"
 # targets build, test, or clean everything.
 
+# To run test suites without rebuilding, pass NO_REBUILD=1 to the
+# build. This can be useful for testing binary interface compatibility
+# as it enables you to rebuild libraries and rerun tests without
+# relinking.
+
 # Although this is not a GNU package and does not use automake, you
 # can still run make clean to remove everything that is compiled, make
 # distclean to remove everything that is generated by the end user,
@@ -111,8 +116,12 @@ maintainer-clean: distclean
 	$(RM) autofiles.zip
 
 .PHONY: $(TEST_TARGETS)
+
+NO_REBUILD ?=
+ifneq ($(NO_REBUILD),1)
 $(foreach B,$(TEST_ITEMS),$(eval \
   check_$(B): $(TARGETS_$(B))))
+endif
 
 .PHONY: $(foreach B,$(BUILD_ITEMS),build_$(B))
 $(foreach B,$(BUILD_ITEMS),$(eval \
-- 
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