[x264-devel] [PATCH] Only init mutexes if threads are being used

[Ramiro Polla]

Hello,

Attached patch makes x264 only init mutexes if threads are being used. 
That makes all pthread_ calls depend on threads being actually used at 
run-time. Another commit is needed for the indentation afterwards.

A problem that can arise is from programs that use static pthreads-win32 
but do not call the initialization code it requires. Currently, it would 
always initialize the mutexes (even if they're not used), and crash the 
program that did not properly initialize pthreads-win32, even if no 
threads were asked for at run-time. With attached patch, if a program 
forgets to properly initialize pthreads-win32, the user can still get 
away from the crash with not using threads at run-time.

Ramiro Polla
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