[mythtv] [PATCH] Mac OS X prebinding

[Jeremiah Morris]

Attached is a patch to enable prebinding for Myth on Mac OS X.  (For 
non-Mac folks, prebinding is a way to speed up the runtime linking of 
dynamic libraries.)  Currently, prebinding fails because the Myth 
libraries' preferred addresses overlap.  This patch modifies the 
Mac-specific portion of the .pro files so that the linker can 
successfully prebind the Myth libraries together.

Note to Mac users: the prebinding will still fail if any dependent 
shared libraries are not prebound.  In my case, I found that 
libfreetype was not prebound.  I had to reconfigure and recompile 
FreeType, setting the environment variable LDFLAGS to "-no-undefined 
-Wl,-prebind,-seg1addr,0xC0000000" before running configure, before 
everything worked.  The linker will emit a warning message when 
building libmythtv and/or mythfrontend if anything's wrong with the 
prebinding.

- Jeremiah

P.S. If you've applied my QuickTime patch, you'll probably need to 
patch libmythtv.pro manually, since both patches make changes to the 
same area of the file.  (The patches are mutually exclusive, but the 
matching will fail.)

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