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

Originally committed as revision 8616 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8104 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Ramiro Ribeiro Polla, ramiro lisha.ufsc br

Originally committed as revision 7709 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7699 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7634 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Ramiro Polla, ramiro lisha.ufsc br

Originally committed as revision 7356 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7167 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7084 to svn://svn.ffmpeg.org/ffmpeg/trunk

out of tree builds from a source dir with spaces is impossible
due to how make handles vpath

Originally committed as revision 6938 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6700 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6642 to svn://svn.ffmpeg.org/ffmpeg/trunk

as a single long filename by the shell.
patch by Víctor Paesa, wzrlpy arsystel com

Originally committed as revision 6589 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6563 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6555 to svn://svn.ffmpeg.org/ffmpeg/trunk

out-of-tree builds.

Originally committed as revision 6553 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6545 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6539 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6538 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6001 to svn://svn.ffmpeg.org/ffmpeg/trunk

with MinGW where ln is emulated by cp.

Originally committed as revision 5930 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5929 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5927 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5921 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5875 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5874 to svn://svn.ffmpeg.org/ffmpeg/trunk

based on patch by Víctor Paesa wzrlpy at arsystel com

Originally committed as revision 5755 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5719 to svn://svn.ffmpeg.org/ffmpeg/trunk

CONFIG_MINGW or __MINGW32__ instead.

Originally committed as revision 5718 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5701 to svn://svn.ffmpeg.org/ffmpeg/trunk