Hey folks, just sharing a data point -- how I compiled my own Perl and then my own wxWidgets and wxPerl on Snow Leopard, making them backwards-compatible to Leopard (hopefully, haven't had a chance to test that yet).
>From here: http://wiki.wxwidgets.org/Development:_wxMac#Building_under_10.6_Snow_Leopard I learned that wxWidgets on Snow Leopard doesn't work as a 64-bit build, you have to build it as 32-bits only. This is just as well since I wanted a build that was portable to Leopard anyway. I followed their instructions and compiled it this way: -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 I also set the prefix to /opt/d3/wx. That happens to be where I want this stuff. I modified my PATH to include /opt/d3/wx/bin so that I would pick up that wx-config command. I ran into a lot of trouble with my first build of Perl because it was 64-bit and wouldn't play nice with my newly built 32-bit wxWidgets when I tried to install Wx, so I had to start over and make a 32-bit perl (again, that's what I really wanted anyway cause I wanted this usable on older Intel machines running Leopard). I had a hard time figuring out how to build a thoroughly 32-bit perl on snow leopard. After a fair amount of trial and error and reading the README.macosx I came up with this (note that I'm installing it to /opt/d3/perl): export MACOSX_DEPLOYMENT_TARGET=10.5; export SDK=/Developer/SDKs/MacOSX10.5.sdk/; ./Configure -Dld='env MACOSX_DEPLOYMENT_TARGET=10.5 gcc' -Darch=i386 -Accflags="-arch i386 -nostdinc -B$SDK/usr/include/gcc -B$SDK/usr/lib/gcc -isystem$SDK/usr/include -F$SDK/System/Library/Frameworks" -Aldflags="-arch i386 -Wl,-syslibroot,$SDK" -Dprefix=/opt/d3/perl -Alddlflags="-arch i386" -Dld="env MACOSX_DEPLOYMENT_TARGET=10.5 cc" -de once I installed it I updated my PATH, so now it starts with /opt/d3/wx/bin and /opt/d3/wx/bin. When building stuff using CPAN I occasionally ran into trouble with architecture clashes. I ended up writing a little script that aggressively set all the env variables I could think of to guarantee that we used my chosen SDK for everything, and sourcing it before doing any cpan install work: export MACOSX_DEPLOYMENT_TARGET=10.5 export SDK=/Developer/SDKs/MacOSX10.5.sdk/ export LD='env MACOSX_DEPLOYMENT_TARGET=10.5 gcc' export CCFLAGS="-arch i386 -nostdinc -B$SDK/usr/include/gcc -B$SDK/usr/lib/gcc -isystem$SDK/usr/include -F$SDK/System/Library/Frameworks" export LDFLAGS="-arch i386 -Wl,-syslibroot,$SDK" export LDDLFLAGS="-arch i386" export LD="env MACOSX_DEPLOYMENT_TARGET=10.5 cc" With all that done, I was able to install Alien::wxWidgets from source; it found /opt/d3/wx/bin/wx-config in my path, and I told it to use that. Then I was able to install Wx from source; I disabled stc because I hadn't built it. This recipe may or may not fill anyone else's needs but it seems to have worked out neatly for me, and hopefully it'll save somebody else some time.
