configure: Check gfio test result via return value (not printf)
authorTomohiro Kusumi <tkusumi@tuxera.com>
Mon, 1 May 2017 18:48:17 +0000 (21:48 +0300)
committerJens Axboe <axboe@fb.com>
Mon, 1 May 2017 20:47:16 +0000 (14:47 -0600)
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

index b49ffc1..0cb4e38 100755 (executable)
--- 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"