linux-kernel - [PATCH 2/2] perf tools: Fix NO

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Date:	Tue, 29 Mar 2011 23:29:51 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Robert Richter <robert.richter@....com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 2/2] perf tools: Fix NO_NEWT=1 python build error

From: Robert Richter <robert.richter@....com>

Fix the following build error:

     GEN python/perf.so
 In file included from util/evsel.h:10,
                  from util/python.c:6:
 util/hist.h:106:18: error: newt.h: No such file or directory
 error: command 'x86_64-pc-linux-gnu-gcc' failed with exit status 1
 make: *** [python/perf.so] Error 1

by passing BASIC_CFLAGS to setup.py. BASIC_CFLAGS variable contains
the -DNO_NEWT_SUPPORT switch which prevents building python c
extension with newt.

Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
LKML-Reference: <20110329180236.GA19366@...a.amd.com>
Signed-off-by: Robert Richter <robert.richter@....com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/Makefile      |    8 ++++++--
 tools/perf/util/setup.py |    7 ++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 158c30e..207dee5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -165,8 +165,12 @@ grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
 $(OUTPUT)python/perf.so: $(PYRF_OBJS)
-	$(QUIET_GEN)python util/setup.py --quiet  build_ext --build-lib='$(OUTPUT)python' \
-						--build-temp='$(OUTPUT)python/temp'
+	$(QUIET_GEN)( \
+		export CFLAGS="$(BASIC_CFLAGS)"; \
+		python util/setup.py --quiet  build_ext --build-lib='$(OUTPUT)python' \
+			--build-temp='$(OUTPUT)python/temp' \
+	)
+
 #
 # No Perl scripts right now:
 #
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index e24ffad..bbc982f 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -1,13 +1,18 @@
 #!/usr/bin/python2
 
 from distutils.core import setup, Extension
+from os import getenv
+
+cflags = ['-fno-strict-aliasing', '-Wno-write-strings']
+cflags += getenv('CFLAGS', '').split()
 
 perf = Extension('perf',
 		  sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
 			     'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
 			     'util/util.c', 'util/xyarray.c', 'util/cgroup.c'],
 		  include_dirs = ['util/include'],
-		  extra_compile_args = ['-fno-strict-aliasing', '-Wno-write-strings'])
+		  extra_compile_args = cflags,
+                 )
 
 setup(name='perf',
       version='0.1',
-- 
1.6.2.5

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