[acinclude.m4] Avoid a warning due to variable set but not used in a

test, making the test fail with gcc -Werror=unused-but-set-variable.

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@8729 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 1 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 14828ca33..856e9a76e 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -273,6 +273,7 @@ int main (void) {
   volatile double d = 0.0, x;
   x = 0.0 / d;
   x = 1.0 / d;
+  (void) x;
   return 0;
 }
 ]])],