X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2FSupport%2FDataTypes.h;h=3d377bebe69d505a1fe05ba23fb65de6692a4034;hb=9fff7e194a2d8aa3abe92efa506b1fbe83583f53;hp=063c4644577a1d382f9098846a46e1c3637871be;hpb=dbc436cb07c4b1f353331f350dfe6ca58604b51c;p=oota-llvm.git

diff --git a/include/Support/DataTypes.h b/include/Support/DataTypes.h
index 063c4644577..3d377bebe69 100644
--- a/include/Support/DataTypes.h
+++ b/include/Support/DataTypes.h
@@ -23,16 +23,29 @@
 #include <inttypes.h>
 
 #ifdef __linux__
-#include <endian.h>
+#  include <endian.h>
+#  if BYTE_ORDER == LITTLE_ENDIAN
+#    undef BIG_ENDIAN
+#  else
+#    undef LITTLE_ENDIAN
+#  endif
+#else
+#  if (BSD >= 199103)
+#    include <machine/endian.h>
+#  endif
 #endif
 
 #ifdef __sparc__
-#include <sys/types.h>
-#ifdef _LITTLE_ENDIAN
-#define LITTLE_ENDIAN 1
-#else
-#define BIG_ENDIAN 1
+#  include <sys/types.h>
+#  ifdef _LITTLE_ENDIAN
+#    define LITTLE_ENDIAN 1
+#  else
+#    define BIG_ENDIAN 1
+#  endif
 #endif
+
+#if (defined(LITTLE_ENDIAN) && defined(BIG_ENDIAN))
+#error "Cannot define both LITTLE_ENDIAN and BIG_ENDIAN!"
 #endif
 
 #if (!defined(LITTLE_ENDIAN) && !defined(BIG_ENDIAN)) || !defined(INT64_MAX)