The diffutils package is also needed (for the 'cmp' command).

Spotted by Ramiro Polla.

Originally committed as revision 16283 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/general.texi

@@ -669,7 +669,7 @@ implementation in MinGW.
 Just install your Cygwin with all the "Base" packages, plus the
 following "Devel" ones:
 @example
-binutils, gcc-core, make, subversion, mingw-runtime
+binutils, gcc-core, make, subversion, mingw-runtime, diffutils
 @end example
 
 Do not install binutils-20060709-1 (they are buggy on shared builds);