util: unbreak endian detection on OpenBSD

[mesa.git] / src / util / u_endian.h

diff --git a/src/util/u_endian.h b/src/util/u_endian.h
index 6bbae3c444c322b7f16fbb6eef2c586f86aecb0c..d9ead69a4a491694e60047da1769ee92cd52b159 100644 (file)
--- a/src/util/u_endian.h
+++ b/src/util/u_endian.h
@@ -30,10 +30,19 @@
 #ifdef HAVE_ENDIAN_H
 #include <endian.h>
 
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+/* glibc */
+#if defined(__BYTE_ORDER) && (__BYTE_ORDER == __LITTLE_ENDIAN)
 # define UTIL_ARCH_LITTLE_ENDIAN 1
 # define UTIL_ARCH_BIG_ENDIAN 0
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif defined(__BYTE_ORDER) && (__BYTE_ORDER == __BIG_ENDIAN)
+# define UTIL_ARCH_LITTLE_ENDIAN 0
+# define UTIL_ARCH_BIG_ENDIAN 1
+#endif
+
+#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
+# define UTIL_ARCH_LITTLE_ENDIAN 1
+# define UTIL_ARCH_BIG_ENDIAN 0
+#elif defined(BYTE_ORDER) && (BYTE_ORDER == BIG_ENDIAN)
 # define UTIL_ARCH_LITTLE_ENDIAN 0
 # define UTIL_ARCH_BIG_ENDIAN 1
 #endif
@@ -60,8 +69,8 @@
 # define UTIL_ARCH_BIG_ENDIAN 1
 #endif
 
-#elif defined(__OpenBSD__) || defined(__NetBSD__) || \
-      defined(__FreeBSD__) || defined(__DragonFly__)
+#elif defined(__NetBSD__) || defined(__FreeBSD__) || \
+      defined(__DragonFly__)
 #include <sys/types.h>
 #include <machine/endian.h>