Myth on OSX(PPC) fails to compile after svn 12786

[cloudkay@…]

Configure enables MMX, as a workaround I've added '--disable-mmx', in osx-packager.pl on line 493

[rich@…]

I investigated this and the ix_x86_mmx routine is returning true when queried with arch_raw set to '.'

The configure script does not correctly set arch_raw for powerpc.

Adding a line to define arch_raw=ppc when detecting that the configure is run on Powerpc after line 730 resolves this on Mac PowerPC systems.

arch_raw is not set for other architectures either though. The configure script is defaulting to assume that builds are on x86 in any case where this has not been set.

[rdubrawski <rich@…>]

Sorry, correction:

The function is_x86_mmx is incorrectly returning true when called with arch_raw set to '.'

The fix identified by cloudkay would probably result in intel macs not having mmx enabled.

[rich@…]

Patch to configure to set cpu=uname -p initially before assigning arch_raw

[rich@…]

I have uploaded a patch that appears to solve the problem. The patch assigns cpu=uname -p initially. This patch works to perform the osx-packager.pl based Mac PowerPC build, and does not impact the configuration for my amd_64 build.

This should permit intel macs to still use MMX optimizations

[Nigel]

Sorry for the delay in looking at this. Change [12787] basically swaps the meaning of cpu and arch, but missed one change. Richard's workaround is close, but may have a side effect. (See line 2079. Setting $cpu is meant to be an exception or override)
I think this change (from [12787]

-cpu=`uname -m` 
-cpu_raw="$cpu" 
+arch=`uname -m` 
+arch_raw="$cpu"

should have used $arch_raw="$arch" ?

[Nigel]

(In [12978]) Non-MMX build fix. Caused by a small mistake in [12787]. Closes #3164