[Mesa-dev] [PATCH] mesa: Remove C++11 narrowing warnings

[Chad Versace]

Add -Wno-narrowing to CXXFLAGS for gcc.

This removes warnings of the form
    warning: narrowing conversion of X from 'int' to 'float' inside { } is
    ill-formed in C++11 [-Wnarrowing]
in ff_fragment_shader.cpp and gen6_blorp.cpp of the form.  When building
i965, I observed no other difference in the build output.

CC: Kenneth Graunke <kenneth at whitecape.org>
Signed-off-by: Chad Versace <chad.versace at linux.intel.com>
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 89686b4..fa4fd71 100644
--- a/configure.ac
+++ b/configure.ac
@@ -228,6 +228,9 @@ if test "x$GXX" = xyes; then
     # gcc's builtin memcmp is slower than glibc's
     # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052
     CXXFLAGS="$CXXFLAGS -fno-builtin-memcmp"
+
+    # Silence C++11 warnings that we don't care about.
+    CXXFLAGS="$CXXFLAGS -Wno-narrowing"
 fi
 
 dnl even if the compiler appears to support it, using visibility attributes isn't
-- 
1.7.11.4