From 07150f3a27681e034f18ab2ed2b68914c1e10af6 Mon Sep 17 00:00:00 2001
From: Li xin <lixin.fnst@cn.fujitsu.com>
Date: Sat, 18 Jul 2015 05:03:57 +0900
Subject: [PATCH] configure.ac: convert AC_TRY_RUN to AC_TRY_LINK statements

This is not completely safe, but it's the least invasive fix.

Upstream-Status: Pending

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Li Xin <lixin.fnst@cn.fujitsu.com>

Signed-off-by: Wang Mingyu <wangmy@cn.fujitsu.com>
---
 m4/glibc.m4  | 6 ++----
 m4/ioloop.m4 | 9 +++------
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/m4/glibc.m4 b/m4/glibc.m4
index 5d722aa..ce088d3 100644
--- a/m4/glibc.m4
+++ b/m4/glibc.m4
@@ -17,7 +17,7 @@ AC_DEFUN([DOVECOT_GLIBC], [
   dnl * Old glibcs have broken posix_fallocate(). Make sure not to use it.
   dnl * It may also be broken in AIX.
   AC_CACHE_CHECK([whether posix_fallocate() works],i_cv_posix_fallocate_works,[
-    AC_TRY_RUN([
+    AC_TRY_LINK([
       #define _XOPEN_SOURCE 600
       #include <stdio.h>
       #include <stdlib.h>
@@ -26,7 +26,7 @@ AC_DEFUN([DOVECOT_GLIBC], [
       #if defined(__GLIBC__) && (__GLIBC__ < 2 || __GLIBC_MINOR__ < 7)
         possibly broken posix_fallocate
       #endif
-      int main() {
+      ], [
         int fd = creat("conftest.temp", 0600);
         int ret;
         if (fd == -1) {
@@ -35,8 +35,6 @@ AC_DEFUN([DOVECOT_GLIBC], [
         }
         ret = posix_fallocate(fd, 1024, 1024) < 0 ? 1 : 0;
         unlink("conftest.temp");
-        return ret;
-      }
     ], [
       i_cv_posix_fallocate_works=yes
     ], [
diff --git a/m4/ioloop.m4 b/m4/ioloop.m4
index 0f7dde0..f40fd62 100644
--- a/m4/ioloop.m4
+++ b/m4/ioloop.m4
@@ -4,13 +4,10 @@ AC_DEFUN([DOVECOT_IOLOOP], [
   
   if test "$ioloop" = "best" || test "$ioloop" = "epoll"; then
     AC_CACHE_CHECK([whether we can use epoll],i_cv_epoll_works,[
-      AC_TRY_RUN([
+      AC_TRY_LINK([
         #include <sys/epoll.h>
-    
-        int main()
-        {
-  	return epoll_create(5) < 1;
-        }
+      ], [
+      epoll_create(5) < 1;
       ], [
         i_cv_epoll_works=yes
       ], [
-- 
2.25.1