perf tools: Makefile: Clean up `python/perf.so' rule

There is no need for a subshell or an explicit `export'; as per the POSIX Shell Command Language specification: http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_09_01 http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_10_02 It is only necessary to include the environment variable assignment just before the command to be run. Also, it is better to use single-quotes, because GNU make might expand `$(BASIC_CFLAGS)' into something that the shell could interpret within double-quotes. Acked-by: Raghavendra D Prabhu <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Michael Witten <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
seken · Apr 19, 2011 · 3643b13 · 3643b13
1 parent aeafcba
commit 3643b13
Showing 1 changed file with 4 additions and 6 deletions.
diff --git 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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