1 files changed, 4 insertions, 6 deletions

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 207dee5c5b16..aaf4dd3fd803 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -165,12 +165,10 @@ grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
 $(OUTPUT)python/perf.so: $(PYRF_OBJS)
-        $(QUIET_GEN)( \
-                export CFLAGS="$(BASIC_CFLAGS)"; \
-                python util/setup.py --quiet  build_ext --build-lib='$(OUTPUT)python' \
-                        --build-temp='$(OUTPUT)python/temp' \
-        )
-
+        $(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' python util/setup.py \
+          --quiet build_ext \
+          --build-lib='$(OUTPUT)python' \
+          --build-temp='$(OUTPUT)python/temp'
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