1 files changed, 1 insertions, 1 deletions
diff --git a/gpspipe.c b/gpspipe.c
index 39f6c301..80079393 100644
--- a/gpspipe.c
+++ b/gpspipe.c
@@ -26,7 +26,7 @@
 /* cfmakeraw() needs _DEFAULT_SOURCE */
 #define _DEFAULT_SOURCE
 
-#ifdef __linux__
+#if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 200112L
 /* isfinite() and pselect() needs  _POSIX_C_SOURCE >= 200112L */
 #define  _POSIX_C_SOURCE 200112L
 #endif /* __linux__ */