If not, The port should modify the Xcode project and set SDKROOT_ppc to the 10.4u SDK. If it is provided by default, it means you have deleted it from / Developer/SDKs/ and that the problem comes from you... but I'm pretty sure you haven't done that, have you?

I didn't. But wait a second, I did not create an XCode project! I just wanted to install libsdl-framework (without XCode projects, since I use another editor) to install and use SDL_Perl. To get the ability to do: #!/usr/bin/perl use strict; use warnings; use SDL; use SDL::App; my $app = SDL::App::new( # ... ); Maybe my problem is this. Maybe I don't need libsdl-framework?