x86_64 10.5/i386 fink 10.6 and the options for MacPorts

[Anders F Björklund]

Jack Howarth wrote:

>     If MacPorts is willing to junk the idea of building i386 packages
> as a default on 10.6, the config.guess fix is really the way to go.
> When patched this way, all programs that use config.guess to determine
> the triplets for configure will pick the correct value of
> x86_64-apple-darwin10 and there will be no need to force -m64 onto any
> compiler flags or to bother to pass --build/--host/--target to
> configure. From my own experiences on fink, I would strongly urge
> MacPorts to abandon any attempt to build an i386 MacPorts on 10.6
> (except where non-EMT64 Core Duo and Core Solo's will do that without
> any intervention) and to focus on the x86_64 Macport builds for 10.6
> fully utilizing the proposed config.guess patch to avoid the bother
> of passing the --build/--target/--host triplets to configure in
> Portfiles. My two cents anyway as a newcomer to MacPorts.

You probably want to fix the "${os.arch}" as well,
since that will affect e.g. how packages are named:

set archive.file "${name}-${version}_${revision}${portvariants}. 
[option os.arch].${archive.type}"
set unarchive.file "${name}-${version}_${revision}${portvariants}. 
[option os.arch].${unarchive.type}"
				
"x86_64", as per http://trac.macports.org/changeset/54798
is a workaround for http://trac.macports.org/ticket/20506

set os_arch $tcl_platform(machine)
if {$os_arch == "Power Macintosh"} { set os_arch "powerpc" }
if {$os_arch == "i586" || $os_arch == "i686" || $os_arch == "x86_64"}  
{ set os_arch "i386" }
default os.arch {$os_arch}

--anders