[Intel-gfx] [igt] Enable locale dependent output to a terminal

[Chris Wilson]

If we are in an interactive session, enable the locale. This allows for
features like setting thousand separators for printing large values. By
only enabling it for interactive terminals, we avoid changing outputs
for the test scripts (leaving them as the "C" locale).

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 lib/igt_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/igt_core.c b/lib/igt_core.c
index 1367863..8ac1f33 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -55,6 +55,7 @@
 #include <time.h>
 #include <ctype.h>
 #include <limits.h>
+#include <locale.h>
 
 #include "drmtest.h"
 #include "intel_chipset.h"
@@ -523,6 +524,9 @@ static int common_init(int *argc, char **argv,
 	int ret = 0;
 	char *env = getenv("IGT_LOG_LEVEL");
 
+	if (isatty(STDOUT_FILENO))
+		setlocale(LC_ALL, "");
+
 	if (env) {
 		if (strcmp(env, "debug") == 0)
 			igt_log_level = IGT_LOG_DEBUG;
-- 
2.1.4