[FFmpeg-cvslog] configure: Enable colored output for gcc 4.9+

[Vittorio Giovara]

ffmpeg | branch: master | Vittorio Giovara <vittorio.giovara at gmail.com> | Mon Mar  9 01:02:01 2015 +0000| [7a76c6c4df31d1ff65464ccf3171acd57ef004eb] | committer: Vittorio Giovara

configure: Enable colored output for gcc 4.9+

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7a76c6c4df31d1ff65464ccf3171acd57ef004eb
---

 configure |    1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index 0042246..91fa9f2 100755
--- a/configure
+++ b/configure
@@ -4486,6 +4486,7 @@ elif enabled gcc; then
     check_cflags -Werror=declaration-after-statement
     check_cflags -Werror=vla
     check_cflags -Werror=format-security
+    check_cflags -fdiagnostics-color=auto
     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
 elif enabled llvm_gcc; then
     check_cflags -mllvm -stack-alignment=16