* gc.c: i686-linux needs to define _XOPEN_SOURCE 600 for posix_memalign.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34239 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 3 deletions

diff --git a/gc.c b/gc.c
index 11f303f449..af4f4cc5f7 100644
--- a/gc.c
+++ b/gc.c
@@ -36,9 +36,11 @@
 
 #if defined _WIN32 || defined __CYGWIN__
 #include <windows.h>
-#endif
-
-#if !defined(__MINGW32__) && !defined(_WIN32) && !defined(__CYGWIN__) &&!defined(HAVE_POSIX_MEMALIGN) &&defined(HAVE_MEMALIGN)
+#elif defined(HAVE_POSIX_MEMALIGN)
+# ifdef __linux__ /* i386 linux needs #define _XOPEN_SOURCE 600 to use posix_memalign */
+#  define _XOPEN_SOURCE 600
+# endif
+#elif defined(HAVE_MEMALIGN)
 #include <malloc.h>
 #endif