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-rw-r--r--util/x86simdgen/Makefile4
1 files changed, 1 insertions, 3 deletions
diff --git a/util/x86simdgen/Makefile b/util/x86simdgen/Makefile
index 5caa0cf7e6..8f4dcbf4e8 100644
--- a/util/x86simdgen/Makefile
+++ b/util/x86simdgen/Makefile
@@ -14,9 +14,7 @@ $(TARGETDIR)/$(TARGETHEADER): header $(TARGETHEADER)
sed '/-- implementation start --/,/-- implementation end --/d' $^ | \
sed 's!3rdparty/x86simd_generate\.pl!util/x86simdgen/README.md!' > $@
$(TARGETDIR)/$(TARGETCPP): $(TARGETHEADER) header
- (cat header | grep -v '^//' | grep .; echo; \
- echo '// This is a generated file. DO NOT EDIT.'; \
- echo '// Please see util/x86simdgen/README.md'; \
+ (sed '/^$$/q' header; \
echo '#include "$(TARGETHEADER)"'; \
sed '1,/-- implementation start --/d;/-- implementation end --/,$$d' $<) > $@