From: Alexander Stein <alexander.stein@systec-electronic.com>
Date: Mon, 27 Apr 2015 13:22:58 +0200
Subject: [PATCH] configure: cache result of large file test

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
---
 configure.in | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure.in b/configure.in
index f92f0ab8ea8f..015e8ba82e71 100644
--- a/configure.in
+++ b/configure.in
@@ -83,6 +83,7 @@ void * thread_func(void * param) { return NULL; }
   , thread_ldflags="-pthread")
 
 AC_SUBST(large_file)
+AC_CACHE_CHECK([Large file support], bonnie_cv_sys_largefile,
 AC_TRY_RUN([#ifndef _LARGEFILE64_SOURCE
 #define _LARGEFILE64_SOURCE
 #endif
@@ -118,8 +119,8 @@ int main () {
   }
   close(fd);
   return 0;
-}], large_file="yes")
-if [[ -n "$large_file" ]]; then
+}], bonnie_cv_sys_largefile=yes, bonnie_cv_sys_largefile=no))
+if [[ "x$bonnie_cv_sys_largefile" = "xyes" ]]; then
    large_file="#define _LARGEFILE64_SOURCE"
 fi