[tip:perf/core] tools lib api fs: Use str_error_r()

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

Commit-ID:  b31e3e3316a78e4a2cf23be8e0d47e5e5a025bde
Gitweb:     http://git.kernel.org/tip/b31e3e3316a78e4a2cf23be8e0d47e5e5a025bde
Author:     Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Fri, 8 Jul 2016 15:26:50 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 12 Jul 2016 15:20:29 -0300

tools lib api fs: Use str_error_r()

To make it portable to non-glibc systems, that follow the XSI variant
instead of the GNU specific one that gets in place when _GNU_SOURCE is
defined.

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: Steven Rostedt <rostedt@goodmis.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-mixgnh3iyajuqogn2opsocdy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/api/Makefile          | 1 +
 tools/lib/api/fs/tracing_path.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index c7ceea6..0a6fda9 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -26,6 +26,7 @@ endif
 
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 CFLAGS += -I$(srctree)/tools/lib/api
+CFLAGS += -I$(srctree)/tools/include
 
 RM = rm -f
 
diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c
index a26bb5e..251b7c3 100644
--- a/tools/lib/api/fs/tracing_path.c
+++ b/tools/lib/api/fs/tracing_path.c
@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <linux/string.h>
 #include <errno.h>
 #include <unistd.h>
 #include "fs.h"
@@ -118,7 +119,7 @@ static int strerror_open(int err, char *buf, size_t size, const char *filename)
 	}
 		break;
 	default:
-		snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
+		snprintf(buf, size, "%s", str_error_r(err, sbuf, sizeof(sbuf)));
 		break;
 	}