qt4-mac +universal variant build error on Mavericks

[Serge3leo (Serguei E. Leontiev)]

This is a bug, like the #41314.

$ sudo port self update
$ sudo port build qt4-mac +universal

Log:

:info:build /usr/bin/clang++ -L/opt/local/lib -Wl,-headerpad_max_install_names -
arch x86_64 -arch i386 -arch -arch -Wl,-syslibroot,/Applications/Xcode.app/Conte
nts/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk -Xarch_x86_64 -mmacosx-version-min=10.9 -Xarch_x86_64 -mmacosx-version-min=10.9 -Xarch_i386 -mmacosx-version-min=10.9 -o ../../../bin/moc release-shared/moc.o release-shared/preprocessor.o release-shared/generator.o release-shared/parser.o release-shared/token.o release-shared/main.o    -L/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/work/qt-everywhere-opensource-src-4.8.5/src/tools/bootstrap -lbootstrap -framework CoreServices -lz -lz
:info:build clang: error: invalid arch name '-arch -arch'
:info:build make[1]: *** [../../../bin/moc] Error 1
:info:build make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/work/qt-everywhere-opensource-src-4.8.5/src/tools/moc'

[Serge3leo (Serguei E. Leontiev)]

Workaround, with `sudo port edit qt4-mac', change from:

# clear LD archflags since somehow they impact how qmake is created,
# which in turn messes up LDFLAGS in most created Makefiles.

configure.ld_archflags

# Use compiler.cpath and compiler.library_path for all -I and -L

to:

# clear LD archflags since somehow they impact how qmake is created,
# which in turn messes up LDFLAGS in most created Makefiles.

configure.ldflags 
configure.universal_ldflags 
configure.ld_archflags

# Use compiler.cpath and compiler.library_path for all -I and -L

[michaelld (Michael Dickens)]

I knew removing those flags would come back to bite me. I'll test a fix tomorrow morning (when I'm running 10.9 again). It's something to do with how QMake is being built, but I've never been able to figure out where or why this happens. It's easiest to do what you did and just void the flags in the environment.

[raphael-st (Raphael Straub)]

We have the same problem with libQGLViewer, which uses the qmake portgroup, see #41359.

[raphael-st (Raphael Straub)]

Cc Me!

[michaelld (Michael Dickens)]

Hopefully fixed in r113367. This change seems to work for me on 10.8 and 10.9, so hopefully it does others too :)