diff --git a/test/egl_epoxy_api.c b/test/egl_epoxy_api.c
index 252b535d..90697ee0 100644
--- a/test/egl_epoxy_api.c
+++ b/test/egl_epoxy_api.c
@@ -29,6 +29,8 @@
 
 #ifdef __sun
 #define __EXTENSIONS__
+#elif defined(__APPLE__)
+#define _DARWIN_C_SOURCE
 #else
 #define _GNU_SOURCE
 #endif
diff --git a/test/egl_has_extension_nocontext.c b/test/egl_has_extension_nocontext.c
index 4fa5f60a..16a5f5fa 100644
--- a/test/egl_has_extension_nocontext.c
+++ b/test/egl_has_extension_nocontext.c
@@ -30,6 +30,8 @@
 
 #ifdef __sun
 #define __EXTENSIONS__
+#elif defined(__APPLE__)
+#define _DARWIN_C_SOURCE
 #else
 #define _GNU_SOURCE
 #endif
diff --git a/test/egl_without_glx.c b/test/egl_without_glx.c
index 195ef41b..ba0dfb6d 100644
--- a/test/egl_without_glx.c
+++ b/test/egl_without_glx.c
@@ -30,7 +30,11 @@
  * test either a GLES1-only or a GLES2-only system.
  */
 
+#if defined(__APPLE__)
+#define _DARWIN_C_SOURCE
+#else
 #define _GNU_SOURCE
+#endif
 
 #include <stdio.h>
 #include <string.h>