[mythtv] Compiling trunk under OS X 10.6 (Snow Leopard)

[Nigel Pearson]

> That explains why your results are different from mine but not why  
> your build is failing.

I purged .osx-packager/build/include more thoroughly,
and got past Qt. Now up to the libavcodec build errors.
This change (basically reverting [20843], adding back
some earlier MMX )
may get you further:

Index: libs/libavcodec/libavcodec.pro
===================================================================
--- libs/libavcodec/libavcodec.pro	(revision 22605)
+++ libs/libavcodec/libavcodec.pro	(working copy)
@@ -665,6 +665,9 @@

  macx {
      QMAKE_LFLAGS_SHLIB += -read_only_relocs warning
+
+    # Prevent GCC running out of registers in libavcodec/*/*_mmx.c
+    contains( HAVE_MMX, yes ) : QMAKE_CFLAGS += -mdynamic-no-pic
  }


...
> I don't know if I'll ever come up with anything useful on that  
> assembler failure but in general would you like to make the packager  
> build things universal or move to specific settings for 64 bit snow  
> leopard?

Universal, but if that isn't possible, new arguments
to osx-packager to specify ppc/32bit/64bit.

Ideally, configure would test all of this for us, but it is
probably a bit hard when Qt might never support both 32 & 64bit
builds from the one "install" of its libraries and headers.


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