1 files changed, 1 insertions, 1 deletions
diff --git a/fmacros.h b/fmacros.h
index 14fed60..9a56643 100644
--- a/fmacros.h
+++ b/fmacros.h
@@ -13,7 +13,7 @@
 #if defined(__sun__)
 #define _POSIX_C_SOURCE 200112L
 #else
-#if !(defined(__APPLE__) && defined(__MACH__))
+#if !(defined(__APPLE__) && defined(__MACH__)) && !(defined(__FreeBSD__))
 #define _XOPEN_SOURCE 600
 #endif
 #endif