Dear GPC, I am updating my installation instructions for GPC on all platforms. I just uninstalled all XCode files from my MacOS 10.7.5 system with: sudo /Developer/Library/uninstall-devtools -mode=all I re-started the OS. I have an installation of gpc, but I could not find an uninstall script for the files in /usr/bin, so I just downloaded Adriaan's "GNU Pascal 3.4.6u4 installer for Mac OS X 10.6 Intel native and PowerPC cross-compiler" and installed again. That package says "for MacOS 10.6 only" but I went ahead anyway. I have the following program: program p; begin writeln('Hello World'); end. And I try to compile with 'gpc', but I get this error: Kevan-Laptop:Build kevan$ gpc p.pas as: assembler (/usr/bin/../libexec/gcc/darwin/i386/as or /usr/bin/../local/libexec/gcc/darwin/i386/as) for architecture i386 not installed Installed assemblers are: /usr/bin/../libexec/gcc/darwin/ppc64/as for architecture ppc64 /usr/bin/../libexec/gcc/darwin/x86_64/as for architecture x86_64 /usr/bin/../local/libexec/gcc/darwin/m68k/as for architecture m68k /usr/bin/../local/libexec/gcc/darwin/hppa/as for architecture hppa /usr/bin/../local/libexec/gcc/darwin/sparc/as for architecture sparc /usr/bin/../local/libexec/gcc/darwin/m88k/as for architecture m88k /usr/bin/../local/libexec/gcc/darwin/i860/as for architecture i860 I always imagined that the assemblers were installed with the GCC that comes included with GPC, but I appear to be mistaken, because Kevan-Laptop:Pascal kevan$ find /Developer/Pascal/ -name as comes up with nothing. Meanwhile I do have: Kevan-Laptop:Pascal kevan$ find /usr -name as /usr/bin/as /usr/libexec/as /usr/libexec/gcc/darwin/ppc64/as /usr/libexec/gcc/darwin/x86_64/as /usr/local/libexec/gcc/darwin/hppa/as /usr/local/libexec/gcc/darwin/i860/as /usr/local/libexec/gcc/darwin/m68k/as /usr/local/libexec/gcc/darwin/m88k/as /usr/local/libexec/gcc/darwin/sparc/as In Adriaan's Readme.rtf file, it says, "The following utilities are installed with Xcode... as Apple/gnu assembler." I conclude that I must install XCode in order to compile with GPC. Which version of XCode should I install? Starting with XCode 4.0, PPC processors and OS 10.4 SDKs are not provided, although it will do 32-bit i386. I tried XCode 3.2 but it crashes on OS 10.7. The one that works for me is XCode 2.5, just using the command-line tools and SDKs. Is anyone else using GPC on MacOS 10.7 or later, and if so, are you able to use the PPC cross-compiler? Yours, Kevan -- Kevan Hashemi, Electrical Engineer Physics Department, Brandeis University http://alignment.hep.brandeis.edu/