[patch] perf tools: fix trivial implicit getline() declarationbuild error tools/perf/util/util.c

[Mike Galbraith]

perf tools: fix trivial implicit getline() declaration build error tools/perf/util/util.c

Signed-off-by: Mike Galbraith <efault@xxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
LKML-Reference: <new-submission>

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index f068584..31d8ac7 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -1,9 +1,13 @@
+#define _GNU_SOURCE
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <stdio.h>
 #include <fcntl.h>
 #include <string.h>
 #include <unistd.h>
+#undef _GNU_SOURCE
+
 #include "util.h"
 
 int mkdir_p(char *path, mode_t mode)


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