From ef2b61aa1b77ed11fbe887692f4472bdb228f573 Mon Sep 17 00:00:00 2001
From: Tomohiro Kusumi <tkusumi@tuxera.com>
Date: Mon, 1 May 2017 21:48:17 +0300
Subject: [PATCH] configure: Check gfio test result via return value (not
 printf)

Test code compiled by compile_prog() mostly return 0 on success
whether binaries are executed or not. This one actually runs and
the result can be checked without printf.

Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
 configure | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index b49ffc1e..0cb4e388 100755
--- a/configure
+++ b/configure
@@ -1243,7 +1243,7 @@ int main(void)
   gdk_threads_enter();
   gdk_threads_leave();
 
-  printf("%d", GTK_CHECK_VERSION(2, 18, 0));
+  return GTK_CHECK_VERSION(2, 18, 0) ? 0 : 1; /* 0 on success */
 }
 EOF
 GTK_CFLAGS=$(pkg-config --cflags gtk+-2.0 gthread-2.0)
@@ -1259,8 +1259,8 @@ if test "$?" != "0" ; then
   exit 1
 fi
 if compile_prog "$GTK_CFLAGS" "$GTK_LIBS" "gfio" ; then
-  r=$($TMPE)
-  if test "$r" != "0" ; then
+  $TMPE
+  if test "$?" = "0" ; then
     gfio="yes"
     GFIO_LIBS="$LIBS $GTK_LIBS"
     CFLAGS="$CFLAGS $GTK_CFLAGS"
-- 
2.25.1