[tip:perf/core] perf tools: Remove FLEX_ARRAY definition

[tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com>]

Commit-ID:  7909675daf55e8222b40e5e162bbc9d633bd5bac
Gitweb:     http://git.kernel.org/tip/7909675daf55e8222b40e5e162bbc9d633bd5bac
Author:     Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Mon, 17 Apr 2017 11:08:20 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 19 Apr 2017 13:01:41 -0300

perf tools: Remove FLEX_ARRAY definition

We rely on symbol->name[0] since the beginning of tools/perf/, never
having received any complaint about it, also all the containers build
perf just fine, so remove this git codebase remnant.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-jsjpgojut8e22o2gtz83augk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-help.c |  4 ++--
 tools/perf/util/util.h    | 22 ----------------------
 2 files changed, 2 insertions(+), 24 deletions(-)

diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 1eec96a..9730fd4 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -15,13 +15,13 @@
 
 static struct man_viewer_list {
 	struct man_viewer_list *next;
-	char name[FLEX_ARRAY];
+	char name[0];
 } *man_viewer_list;
 
 static struct man_viewer_info_list {
 	struct man_viewer_info_list *next;
 	const char *info;
-	char name[FLEX_ARRAY];
+	char name[0];
 } *man_viewer_info_list;
 
 enum help_format {
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 7cf5752..df13658 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -1,28 +1,6 @@
 #ifndef GIT_COMPAT_UTIL_H
 #define GIT_COMPAT_UTIL_H
 
-#ifndef FLEX_ARRAY
-/*
- * See if our compiler is known to support flexible array members.
- */
-#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
-# define FLEX_ARRAY /* empty */
-#elif defined(__GNUC__)
-# if (__GNUC__ >= 3)
-#  define FLEX_ARRAY /* empty */
-# else
-#  define FLEX_ARRAY 0 /* older GNU extension */
-# endif
-#endif
-
-/*
- * Otherwise, default to safer but a bit wasteful traditional style
- */
-#ifndef FLEX_ARRAY
-# define FLEX_ARRAY 1
-#endif
-#endif
-
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
 #ifdef __GNUC__