From aef10c36f77866a4097c53fdbf3f9d33baa3f010 Mon Sep 17 00:00:00 2001
From: Lev Walkin <vlm@lionet.info>
Date: Tue, 14 Jan 2014 01:47:25 -0800
Subject: upgrade autotools

---
 configure.ac | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 1704ad1b..ec0ab34f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,15 +33,23 @@ fi
 AC_SUBST(ADD_CFLAGS)
 
 dnl Add these flags if we're using GCC.
+case "$GCC$enable_werror" in
+ yesno)
+    CFLAGS="$CFLAGS -Wall"  # Enable only if not going to fail with -Werror
+    ;;
+esac
 case "$GCC" in
  yes)
    CFLAGS="$CFLAGS -Wall"
    CFLAGS="$CFLAGS -Wshadow"
    CFLAGS="$CFLAGS -Wcast-qual"
-   CFLAGS="$CFLAGS -Wcast-align"
    CFLAGS="$CFLAGS -Wchar-subscripts"
    CFLAGS="$CFLAGS -Wmissing-prototypes"
    CFLAGS="$CFLAGS -Wmissing-declarations"
+   # There are legitimate uses for these features
+   CFLAGS="$CFLAGS -Wno-error=cast-align"
+   CFLAGS="$CFLAGS -Wno-error=visibility"
+   CFLAGS="$CFLAGS -Wno-error=parentheses-equality"
    ;;
 esac
 
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