Hey all,

the autotool stuff for pacman-lib writes a makepkg.conf with the following C/XXFLAGS when configured on ppc:

CFLAGS="-mcpu=750 -O2 -pipe" CXXFLAGS="-mcpu=750 -O2 -pipe"

This is problematic! The past has shown us on archppc that -mcpu=750 might cause problems on G4 AND earlier variants of the PowerPC such as the 604 (pre-G3). Instead we started to use:

export CFLAGS="-mtune=powerpc -O2 -pipe -mpowerpc-gfxopt -fPIC" export CXXFLAGS="-mtune=powerpc -O2 -pipe -mpowerpc-gfxopt -fPIC"

of which "-mtune=powerpc" is the one which can be generalized, as opposed to "-mpowerpc-gfxopt" which will break compatibility to POWER which is the way I decided to go with archppc. -mtune is a relaxed optimization as you can see. It has proven to produce stable code on all PowerPCs we've seen so far.

Also, I'd like to suggest to add "-fPIC" as a ppc default as well. Relocation does not work the way it does on x86 PHP 5.1+ being the most prominent representative for the problem. Every single library it links against must be built with -fPIC in order to load extensions in php.ini. This is only one example.

Cheers,

-Z