Previously, I wrote:
- universal_target # for setting macosx_deployment_target and configure target Default: 10.4
- universal_sysroot # the SDK "sysroot" to use, normally for the -isysroot flag Default: /Developer/SDKs/MacOSX10.4u.sdk
- universal_archs # machine architectures to use, can be more than just one Default: ppc i386
The additions means that it will now cross-compile when necessary, and that +universal target is meant to generate similar binaries*. ... * this default is a change from MacPorts 1.6.0, that used 10.5 SDK on Leopard and 10.4u SDK on Tiger (but is the same as in 1.5/1.4)
I changed the above defaults back to the same as on MacPorts 1.6.0, except that it is now configured at compiletime (in macports.conf). So it will now again use /Developer/SDKs/MacOSX10.5.sdk on Leopard, and /Developer/SDKs/MacOSX10.4u.sdk on Tiger and avoid cross-compile. This implicitly also fixes the issues were the wrong MDT was being passed to GCC, even if it now passes an extra -mmacosx-version-min As before, cross-compiling is not going to be supported this way since the variants (like +darwin_8 and +i386) will all be wrong. Merge support still needs to be added for +universal to work OK, but I'm not going to continue that Summer-of-Code 2007 project... However, changing the Xcode group to support the above settings should be pretty straightforward so that will go in soonishly. --anders