perf tools: Add missing header to color.c

It uses isatty(), so needs unistd.h, include it.

Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 1210ba555d07bbc923cf38bcf78673ebdbd0b7ca..47a34b561f5da64addc08a8945c73a0ed752c2ad 100644 (file)
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -3,6 +3,7 @@
 #include "config.h"
 #include "color.h"
 #include <math.h>
+#include <unistd.h>
 
 int perf_use_color_default = -1;