[FFmpeg-cvslog] configure: clang -Oz for small size build to reduce size further

[wang-bin]

ffmpeg | branch: master | wang-bin <wbsecg1 at gmail.com> | Fri Mar 10 04:02:13 2017 +0000| [b573e3f4845bd1cd004df70dd0b7cf2c4c73a5f9] | committer: Carl Eugen Hoyos

configure: clang -Oz for small size build to reduce size further

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b573e3f4845bd1cd004df70dd0b7cf2c4c73a5f9
---

 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 0333210..48a53f1 100755
--- a/configure
+++ b/configure
@@ -4054,7 +4054,7 @@ probe_cc(){
         _ident=$($_cc --version 2>/dev/null | head -n1)
         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
         _cflags_speed='-O3'
-        _cflags_size='-Os'
+        _cflags_size='-Oz'
     elif $_cc -V 2>&1 | grep -q Sun; then
         _type=suncc
         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)