On 26.09.2017 10:48, Edmund Grimley Evans wrote: > Package: gcc-6-arm-linux-gnueabi > Version: 6.3.0-18cross1 > > This is not specific to cross-compiling and not even to gcc-6. > > We noticed the infinite loop when the buildd tries to build rnahybrid: > > https://buildd.debian.org/status/logs.php?pkg=rnahybrid&arch=armel > > It seems to be easy to reproduce with the cross-compiler. On Debian > amd64 Stretch: > > sudo apt-get install gcc-6-arm-linux-gnueabi > apt-get source rnahybrid > cd rnahybrid-2.1.2/ > export CC=arm-linux-gnueabi-gcc-6 > ./configure --host=xx > make > # cc1 runs forever with 100% CPU, not much memory, compiling "energy.c" > > There's a warning about undefined behaviour, and I've not looked at > the source at all, but an infinite loop like this is presumably a GCC > bug in any case (though perhaps not such a serious one if it only > happens with code that invokes undefined behaviour).
please recheck with gcc-6 from unstable, gcc-7 and gcc-snapshot. Thanks, Matthias
