Clarify how to configure llvm-gcc-4.2 for use with

[oota-llvm.git] / test / Makefile

diff --git a/test/Makefile b/test/Makefile
index 82422b551d7c71a2d90524c6b19ecae29cef29e0..e02daa072546a99c8747bcf1da8ec41e89c73f90 100644 (file)
--- a/test/Makefile
+++ b/test/Makefile
@@ -22,6 +22,10 @@ include Makefile.tests
 # DejaGNU testing support
 #===------------------------------------------------------------------------===#
 
+ifneq ($(GREP_OPTIONS),)
+$(warning GREP_OPTIONS environment variable may interfere with test results)
+endif
+
 ifdef VERBOSE
 RUNTESTFLAGS := $(VERBOSE)
 endif