[FFmpeg-cvslog] configure: Add -Wno-char-subscripts.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <ceffmpeg at gmail.com> | Sun Nov 18 04:32:07 2018 +0100| [737b5f5869252cd1d367ab66321a40653fa34930] | committer: Carl Eugen Hoyos

configure: Add -Wno-char-subscripts.

Silences many warnings on systems with signed char where
the compiler cannot distinguish between char and int8_t.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=737b5f5869252cd1d367ab66321a40653fa34930
---

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

diff --git a/configure b/configure
index 65925f173d..ab3144e459 100755
--- a/configure
+++ b/configure
@@ -6509,6 +6509,7 @@ check_disable_warning -Wno-format-zero-length
 check_disable_warning -Wno-pointer-sign
 check_disable_warning -Wno-unused-const-variable
 check_disable_warning -Wno-bool-operation
+check_disable_warning -Wno-char-subscripts
 
 check_disable_warning_headers(){
     warning_flag=-W${1#-Wno-}