Use autoconf to detect WORDS_LITTLEENDIAN

Use autoconf to detect littleendian word order, and use
WORDS_LITTLEENDIAN instead of X86_MEMORY when we don't require
unaligned memory accesses to be permitted.

1 files changed, 3 insertions, 0 deletions

diff --git a/compiler.h b/compiler.h
index ced029c9..01e11277 100644
--- a/compiler.h
+++ b/compiler.h
@@ -103,6 +103,9 @@ char *strsep(char **, const char *);
  */
 #if defined(__386__) || defined(__i386__) || defined(__x86_64__)
 # define X86_MEMORY 1
+# ifndef WORDS_LITTLEENDIAN
+#  define WORDS_LITTLEENDIAN 1
+# endif
 #else
 # define X86_MEMORY 0
 #endif