On Thu, May 30, 2019 at 11:58 AM Tadeus Prastowo <tadeus.prastowo@xxxxxxxx> wrote: > > Any idea on how to find out the cause of the missing Makefile? I > attach the config.log file that I found under > `$buildir/x86_64-linux-gnu/libstdc++-v3/' as there is only one > config.log file under that directory according to: find > /homd/eus/buildzone/gcc-9-build/x86_64-linux-gnu/libstdc++-v3/ -iname > '*.log*', and the attached file ends with: configure: exit 0. It is easily reproducible, and $ ../gcc-9.1.0/configure --prefix=$HOME/gcc9 --enable-languages=c,c++ --enable-libstdcxx-debug --disable-multilib $ make profiledbootstrap is enough. The same thing happens on Ubuntu bionic. Apparently --enable-libstdcxx-debug and profiledbootstrap don’t play well together. Either bootstrap or leaving out --enable-libstdcxx-debug work. It’s just the combination of these two that breaks.