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-rw-r--r--mrbgems/mruby-time/src/time.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mrbgems/mruby-time/src/time.c b/mrbgems/mruby-time/src/time.c
index 5446d43f2..15ec7f362 100644
--- a/mrbgems/mruby-time/src/time.c
+++ b/mrbgems/mruby-time/src/time.c
@@ -66,6 +66,10 @@ double round(double x) {
#define NO_GMTIME_R
#endif
#endif
+#ifdef __STRICT_ANSI__
+/* Strict ANSI (e.g. -std=c99) do not provide gmtime_r/localtime_r */
+#define NO_GMTIME_R
+#endif
/* asctime(3) */
/* mruby usually use its own implementation of struct tm to string conversion */
@@ -125,7 +129,7 @@ gettimeofday(struct timeval *tv, void *tz)
# include <sys/time.h>
# endif
#endif
-#if !(defined(_POSIX_C_SOURCE) || defined(_BSD_SOURCE) || defined(_SVID_SOURCE))
+#ifdef NO_GMTIME_R
#define gmtime_r(t,r) gmtime(t)
#define localtime_r(t,r) localtime(t)
#endif