Compiling a 4-way universal perl binary on osx

If you don't like having all of your perl modules overwritten by cavalier osx server updates, then you're either going with a macports install or rolling your own. And if you don't want to give up mod_auth_apple, you're probably rolling your own.

If you're using mod_perl on osx, then you've probably already run into the issues with the 4-way httpd fat binary and a flat arch mod_perl not working. There are various posts around the internet on how to set archflags to get around this. However, if you're already compiling your own perl binary the easiest method is to compile it with the flags you want passed onto your perl modules.

So this is how to compile your perl binary with a 4-way (ppc ppc64 x86_64 i686) universal arch and by extension, compile all subsequent modules with the same:

export SDK=/Developer/SDKs/MacOSX10.5.sdk/
./Configure -Accflags="-arch i686 -arch ppc -arch x86_64 -arch ppc64 \
  -fPIC -nostdinc -B$SDK/usr/include/gcc \
  -B$SDK/usr/lib/gcc -isystem$SDK/usr/include \
  -F$SDK/System/Library/Frameworks" \
  -Aldflags="-arch i686 -arch ppc -arch ppc64 -arch x86_64 \
  -Wl,-syslibroot,$SDK" -de


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