https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100731
--- Comment #2 from Harald van Dijk ---
There are more missing or wrong includes here: looking at the code, it's also
using functions from without including that, but that one gets
implicitly included for me even on this old G++ so happens to n
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100731
--- Comment #1 from Harald van Dijk ---
The full configure line I used for reproducing this on glibc, btw:
../gcc-11.1.0/configure --prefix=$HOME/gcc-11.1.0-run CC=gcc-4.8.5
CXX=g++-4.8.5 --enable-languages=c,c++
