X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fbyteswap.m4;h=7566903dc49ae211ce7e195c18485ada23c43355;hb=c67e3c0414da820f845c9c91c105094e87d865d0;hp=642c42cf83ab7f8db01f90b9da7976f294fe8053;hpb=293ec82ede14e2a6f3443637e5a8fb9da9ce3cbe;p=gnulib.git

diff --git a/m4/byteswap.m4 b/m4/byteswap.m4
index 642c42cf8..7566903dc 100644
--- a/m4/byteswap.m4
+++ b/m4/byteswap.m4
@@ -1,5 +1,5 @@
-# byteswap.m4 serial 2
-dnl Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+# byteswap.m4 serial 4
+dnl Copyright (C) 2005, 2007, 2009-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -14,5 +14,6 @@ AC_DEFUN([gl_BYTESWAP],
   ], [
     BYTESWAP_H='byteswap.h'
   ])
-  AC_SUBST(BYTESWAP_H)
+  AC_SUBST([BYTESWAP_H])
+  AM_CONDITIONAL([GL_GENERATE_BYTESWAP_H], [test -n "$BYTESWAP_H"])
 ])