commit 182d6096fe76b3d63b1151090cd07e60eca39302

Author: Mike Frysinger <vapier@gentoo.org>

Date:   Wed Jul 29 11:35:37 2015 -0400

    mmap64: fix undef warnings

    The only target that defines this is m68k, so move the existing fallback

    define up to avoid warnings on other systems.

diff --git a/sysdeps/unix/sysv/linux/mmap64.c b/sysdeps/unix/sysv/linux/mmap64.c

index 2c8304d860f19d58..fcaa6be1f41b3ffd 100644

--- a/sysdeps/unix/sysv/linux/mmap64.c

+++ b/sysdeps/unix/sysv/linux/mmap64.c

@@ -26,12 +26,12 @@

 #include <kernel-features.h>

 /* This is always 12, even on architectures where PAGE_SHIFT != 12.  */

+#ifndef MMAP2_PAGE_SHIFT

+# define MMAP2_PAGE_SHIFT 12

+#endif

 #if MMAP2_PAGE_SHIFT == -1

 static int page_shift;

 #else

-# ifndef MMAP2_PAGE_SHIFT

-#  define MMAP2_PAGE_SHIFT 12

-# endif

 #define page_shift MMAP2_PAGE_SHIFT

 #endif