mplayer SVN Rev.25811 がビルドに失敗する

いつ頃か忘れましたが，以下のようなエラーとともにビルドに失敗するようになっちゃいました．何が原因なんでしょう？ただいま調査中…．

In file included from ../libavutil/intreadwrite.h:23,
                 from stream_dvd.c:42:
../libavutil/bswap.h:42: error: syntax error before "__extension__"
../libavutil/bswap.h:42: warning: data definition has no type or storage class
../libavutil/bswap.h:42: error: syntax error before '}' token
../libavutil/bswap.h:56: error: syntax error before "__extension__"
../libavutil/bswap.h:56: warning: data definition has no type or storage class
../libavutil/bswap.h:56: error: syntax error before '}' token
../libavutil/bswap.h:97: error: syntax error before "__extension__"
../libavutil/bswap.h:97: error: syntax error before '}' token
../libavutil/bswap.h:97: warning: data definition has no type or storage class
../libavutil/bswap.h:97: error: syntax error before "if"
../libavutil/bswap.h:97: warning: data definition has no type or storage class
../libavutil/bswap.h:97: error: syntax error before '}' token
../libavutil/bswap.h:97: warning: data definition has no type or storage class
../libavutil/bswap.h:97: error: syntax error before '}' token
../libavutil/bswap.h:112: error: syntax error before '}' token
../libavutil/bswap.h:112: warning: data definition has no type or storage class
../libavutil/bswap.h:113: error: syntax error before '.' token
../libavutil/bswap.h:114: warning: data definition has no type or storage class
../libavutil/bswap.h:114: error: syntax error before '}' token
../libavutil/bswap.h:115: warning: data definition has no type or storage class
../libavutil/bswap.h:115: error: syntax error before '}' token
stream_dvd.c: In function `dvd_parse_chapter_range':
stream_dvd.c:168: warning: passing arg 2 of `strtol' from incompatible pointer type
make[1]: *** [stream_dvd.o] Error 1
make[1]: Leaving directory `/home/munepi/rpm/BUILD/mplayer-1.0rc2.r25811/stream'make: *** [stream/stream.a] エラー 2
エラー: /var/tmp/rpm-tmp.48910 の不正な終了ステータス (%build)


RPM ビルドエラー:
    /var/tmp/rpm-tmp.48910 の不正な終了ステータス (%build)