[FFmpeg-devel] [RFC] Simplify configure default parameters

[Ramiro Ribeiro Polla]

Hello,

Attached patch shows an idea of how to simplify the configure script 
(incomplete though).
Instead of having each parameter being set to a default value 
separately, it puts them all in HAVE_LIST_DISABLED, HAVE_LIST_ENABLED, 
(etc), which can be set all in one line.
HAVE_LIST is then made up of all those lists. Same thing goes for 
CONFIG_LIST.

But configure has some inconsistencies. Some variables are not declared 
before being used (so they're assumed to be disabled), and some aren't 
set to a default parameter. Others are set, but they're not required to 
be, since some check will either disable or enable them.

Ramiro Polla
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