--- shapelib-1.2.10/contrib/my_nan.h.orig 2005-02-13 12:04:41.484914852 +0000
+++ shapelib-1.2.10/contrib/my_nan.h 2005-02-13 12:07:03.306704589 +0000
@@ -21,16 +21,18 @@
#define _GNU_NAN_H 1
+#include <endian.h>
/* hacked to define NAN on Solaris 2.7 if it wasn't defined */
/* IEEE Not A Number. */
-#ifdef _BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
# define __nan_bytes { 0x7f, 0xf8, 0, 0, 0, 0, 0, 0 }
-#endif
-#ifdef _LITTLE_ENDIAN
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
# define __nan_bytes { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
+#else
+#error No endianness?
#endif
#ifdef __GNUC__