$ make install
LD      ffmpeg_g.exe
/usr/lib/gcc/i686-pc-cygwin/4.5.3/../../../../i686-pc-cygwin/bin/ld: cannot find -lx264
collect2: ld returned 1 exit status
Makefile:91: recipe for target `ffmpeg_g.exe' failed
make: *** [ffmpeg_g.exe] Error 1