On OS X 10.5.5, building a universal binary with M-C trunk (r3a4db7f8bd83) fails with the following message: /usr/bin/python ../../_profile/pgo/genpgocert.py --gen-server dyld: Library not loaded: @executable_path/libssl3.dylib Referenced from: /Users/jimblandy/mc/jsuni/obj-rel/ppc/nss/certutil Reason: image not found ERROR FAIL: SSL Server Certificate generation make[5]: *** [libs] Error 133 make[4]: *** [libs_tier_toolkit] Error 2 Adding 'print' commands to genpgocert.py shows that it is executing the command: ./../../dist/bin/certutil -N -d ../../_profile/pgo/certs -f ../../_profi/e/pgo/certl/.crtdbpw Running this command from the shell also fails as shown. The certutil in dist/bin/ is a symlink back to obj-rel/ppc/nss/certutil; replacing that symlink with a copy of the executable allows certutil to run properly. The libssl3.dylib file is located in dist/bin. Here's the .mozconfig I'm using: # dot-mozconfig-release-universal . $topsrcdir/browser/config/mozconfig . $topsrcdir/build/macosx/universal/mozconfig mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-rel # mk_add_options MOZ_MAKE_FLAGS="-j4" Note that I don't --disable-tests.

Universal builds without --disable-tests aren't a build config we care about.

There probably should be a bug about making genpgocert.py work in a cross-compile, though. We discussed this in bug 428009.