From 25b0153633c567421f85f1855d35fe590af81dd1 Mon Sep 17 00:00:00 2001
From: Alexandre Duret-Lutz <adl@lrde.epita.fr>
Date: Wed, 30 Sep 2015 15:35:30 +0200
Subject: [PATCH] configure: use -Wint-to-void-pointer-cast with clang

* m4/gccwarn.m4: Test it.
---
 m4/gccwarn.m4 | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/m4/gccwarn.m4 b/m4/gccwarn.m4
index d4a597318..d2c53a840 100644
--- a/m4/gccwarn.m4
+++ b/m4/gccwarn.m4
@@ -25,13 +25,14 @@ EOF
   cf_save_CXXFLAGS="$CXXFLAGS"
   ac_cv_prog_gxx_warn_flags="-W -Wall"
   for cf_opt in \
+   Werror \
+   Wint-to-void-pointer-cast \
    Wzero-as-null-pointer-constant \
    Wcast-align \
    Wpointer-arith \
    Wwrite-strings \
    Wcast-qual \
-   Wdocumentation \
-   Werror
+   Wdocumentation
   do
     CXXFLAGS="$cf_save_CXXFLAGS $ac_cv_prog_gxx_warn_flags -$cf_opt"
     if AC_TRY_EVAL(ac_compile); then