gcc -O3 -g -Wall -Wno-switch  -Wdeclaration-after-statement -DHAVE_AV_CONFIG_H -I.. -I/home/david/ffmpeg/libavutil -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE   -c -o mpegvideo.o mpegvideo.c
In file included from /home/david/ffmpeg/libavutil/avutil.h:24,
                 from avcodec.h:14,
                 from mpegvideo.c:28:
/home/david/ffmpeg/libavutil/common.h:608: warning: static declaration of 'lrintf' follows non-static declaration
mpegvideo.c: In function `MPV_encode_picture':
/home/david/ffmpeg/libavutil/common.h:608: sorry, unimplemented: inlining failed in call to 'lrintf': redefined extern inline functions are not considered for inlining
mpegvideo.c:2554: sorry, unimplemented: called from here
make[1]: *** [mpegvideo.o] Error 1
make[1]: Leaving directory `/home/david/ffmpeg/libavcodec'
make: *** [lib] Error 2