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Subject[PATCH 1/2] perf: Fix compilation on gcc 4.0.2 v2
[Updated version, this time using the try-cc command.
I remove the useless -Wvolatile-register-var warning.
I don't think any kernel coder will really do such
a thing in the first place.]

- Fix includes
- Remove useless -Wvolatile-register-var
- Move -Wstack-protector into stack protector test

Signed-off-by: Andi Kleen <ak@linux.intel.com>

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index d1db0f6..993ecdb 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -201,13 +201,11 @@ EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wshadow
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Winit-self
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wpacked
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wredundant-decls
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstack-protector
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wstrict-aliasing=3
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-default
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wswitch-enum
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wno-system-headers
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wundef
-EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wvolatile-register-var
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wwrite-strings
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wbad-function-cast
EXTRA_WARNINGS := $(EXTRA_WARNINGS) -Wmissing-declarations
@@ -287,8 +285,8 @@ endif

-include feature-tests.mak

-ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all),y)
- CFLAGS := $(CFLAGS) -fstack-protector-all
+ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all -Wstack-protector),y)
+ CFLAGS := $(CFLAGS) -fstack-protector-all -Wstack-protector
endif


diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index bb4ac2e..50ce182 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -1,6 +1,7 @@
#ifndef _PERF_LINUX_BITOPS_H_
#define _PERF_LINUX_BITOPS_H_

+#include <linux/compiler.h>
#include <linux/kernel.h>
#include <asm/hweight.h>

--
ak@linux.intel.com -- Speaking for myself only.

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