avformat/mxf: add platform local tag

Please check the string of platform with below command:
./ffmpeg -i ../fate-suite/mxf/Sony-00001.mxf -c:v copy -c:a copy out.mxf
./ffmpeg -i out.mxf
....
application_platform: Lavf (linux)

Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index df298b4b9b..a092a6b457 100755
--- a/configure
+++ b/configure
@@ -7579,6 +7579,7 @@ cat > $TMPH <<EOF
 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
+#define OS_NAME $target_os
 #define av_restrict $restrict_keyword
 #define EXTERN_PREFIX "${extern_prefix}"
 #define EXTERN_ASM ${extern_prefix}