From 525f6519fbb43f6fc9e45860e116f8ac44fc0c1e Mon Sep 17 00:00:00 2001
From: "cantab.net!aia21" <cantab.net!aia21>
Date: Wed, 10 Mar 2004 10:22:03 +0000
Subject: [PATCH] Auto merged

2004/03/10 10:21:35+00:00 cantab.net!aia21
Use AC_CHECK_DECLS in configure.ac to determine if the constant bswap
functions are defined/declared and define them to the non-constant ones
in endians.h if not.

(Logical change 1.314)
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index b6c22530..538bede6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -217,6 +217,11 @@ AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([atexit fdatasync hasmntopt memmove memset regcomp setlocale \
 	strcasecmp strchr strdup strerror strtol strtoul utime mbsinit])
 
+# Check for declarations of constant bswap function as some systems do not
+# provide all of them.
+AC_CHECK_DECLS([__bswap_constant_16, __bswap_constant_32, __bswap_constant_64],
+	       , , [#include <byteswap.h>])
+
 # Makefiles to be created by configure.
 AC_CONFIG_FILES([
 	Makefile