[PATCH] perf symbol: Include elf.h header regardless LIBELF_SUPPORT

[Namhyung Kim]

From: Namhyung Kim <namhyung.kim@xxxxxxx>

The elf.h header file is used for NO_LIBELF build too so it should be
included anyway.  Also remove duplicated include of the header file in
symbol-*.c.  This patch fixes following build error on NO_LIBELF build:

    CC tests/hists_link.o
tests/hists_link.c: In function âsetup_fake_machineâ:
tests/hists_link.c:132:8: error: âSTB_GLOBALâ undeclared (first use in this function)
tests/hists_link.c:132:8: note: each undeclared identifier is reported only once for each function it appears in

Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
 tools/perf/util/symbol-elf.c     | 3 ---
 tools/perf/util/symbol-minimal.c | 1 -
 tools/perf/util/symbol.h         | 2 +-
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index f63557b59c06..54efcb5659ac 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1,6 +1,3 @@
-#include <libelf.h>
-#include <gelf.h>
-#include <elf.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <errno.h>
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index 259f8f2ea9c9..a7390cde63bc 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -1,6 +1,5 @@
 #include "symbol.h"
 
-#include <elf.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <string.h>
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index ec7b2405c377..d97377ac2f16 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -16,8 +16,8 @@
 #ifdef LIBELF_SUPPORT
 #include <libelf.h>
 #include <gelf.h>
-#include <elf.h>
 #endif
+#include <elf.h>
 
 #include "dso.h"
 
-- 
1.7.11.7

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