Revert "Forgot to commit changes to subdir.mak in last revision."

Originally committed as revision 13426 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Jeremy Kolb.

Originally committed as revision 13379 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 13100 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12893 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12867 to svn://svn.ffmpeg.org/ffmpeg/trunk

unsetting it manually.

Originally committed as revision 12825 to svn://svn.ffmpeg.org/ffmpeg/trunk

each subdirectory Makefile.

Originally committed as revision 12803 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12802 to svn://svn.ffmpeg.org/ffmpeg/trunk

This way, it can be used from all directories.

Originally committed as revision 12800 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12799 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12777 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12775 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12764 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12763 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12760 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12617 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12611 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12608 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12599 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12452 to svn://svn.ffmpeg.org/ffmpeg/trunk

This will allow specifying gcc-independent commands in the future.

Originally committed as revision 12426 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12413 to svn://svn.ffmpeg.org/ffmpeg/trunk

target name. This breaks when compiling targets in subdirectories, so prepend
the subdirectory name to the target name.

Originally committed as revision 12398 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12362 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12354 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12343 to svn://svn.ffmpeg.org/ffmpeg/trunk

Install each library's headers in $prefix/include/$libname.
The installed headers use #include "lib*/*.h"; applications
are expected to do the same.

Specify only $prefix/include in .pc files.

Originally committed as revision 12194 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11645 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Dave Yeo, daveryeo telus net

Originally committed as revision 11172 to svn://svn.ffmpeg.org/ffmpeg/trunk

indirection. This moves build system workarounds closer to libpostproc
where they are really needed.

Originally committed as revision 10874 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10844 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10774 to svn://svn.ffmpeg.org/ffmpeg/trunk

SLIB_INSTALL_EXTRA_COMMAND.
patch by Dave Yeo, daveryeo telus net

Originally committed as revision 10767 to svn://svn.ffmpeg.org/ffmpeg/trunk

that can be set to a suitable platform-specific command.
patch by Dave Yeo, daveryeo telus net

Originally committed as revision 10503 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9776 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9766 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9346 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9278 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9277 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9195 to svn://svn.ffmpeg.org/ffmpeg/trunk