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-rw-r--r--testsuite/tests/backtrace/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/testsuite/tests/backtrace/Makefile b/testsuite/tests/backtrace/Makefile
index c4965c22c8..0d368bfc1f 100644
--- a/testsuite/tests/backtrace/Makefile
+++ b/testsuite/tests/backtrace/Makefile
@@ -7,7 +7,7 @@ run-all:
for arg in a b c d ''; do \
printf " ... testing '$$file' (with argument '$$arg'):"; \
OCAMLRUNPARAM=b=1 $(EXECNAME) $$arg > `basename $$file ml`$$arg.result 2>&1; \
- diff -q `basename $$file ml`$$arg.reference `basename $$file ml`$$arg.result > /dev/null && echo " => passed" || (echo " => failed" && exit 1); \
+ $(DIFF) `basename $$file ml`$$arg.reference `basename $$file ml`$$arg.result > /dev/null && echo " => passed" || (echo " => failed" && exit 1); \
done; \
done