During the configure phase dev-qt/qtmultimedia runs configure and fails to detect alsa despite it being on the system. The config.log reports this: > g++ -c -pipe -O2 -w -fPIC -I/store/tmp/portage/dev-qt/qtmultimedia-5.15.13/wo rk/qtmultimedia-everywhere-src-5.15.13/config.tests/alsa -I. -I/usr/lib/qt5/mksp ecs/linux-g++ -o alsatest.o /store/tmp/portage/dev-qt/qtmultimedia-5.15.13/work/ qtmultimedia-everywhere-src-5.15.13/config.tests/alsa/alsatest.cpp > g++ -Wl,-O1 -o alsa alsatest.o -lasound > /usr/lib/gcc/i686-pc-linux-gnu/11/../../../../i686-pc-linux-gnu/bin/ld: i386:x86-64 architecture of input file `alsatest.o' is incompatible with i386 output > collect2: error: ld returned 1 exit status > distcc[5186] ERROR: compile (null) on localhost failed > make: *** [Makefile:67: alsa] Error 1 => source failed verification. test config.qtmultimedia_multimedia.libraries.alsa FAILED Reproducible: Always Steps to Reproduce: 1. Use distcc on qtmultimedia 2. have all dissimilar helper distccd machines in /etc/distcc/hosts . If you have some that are the same as the host, then it may not error if it luckily hits the correct architecture helper. 3. run build Actual Results: configure will send the command "g++" to the helper - If distcc hits a dissimilar architecture, g++ will end up returning an unusable object file as that's the default for that machine which may be incompatible with the machine needing help. Expected Results: configure should use full tuple for the compiler invocation, in my case, i686-pc-linux-gnu-g++ instead of simply g++ Workaround is disable distcc. I don't know if this is the only instance of using the compiler without the whole tuple, but will be trying to see what happens if I have nothing in /etc/distcc/hosts until after configure ...