https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108678
--- Comment #14 from cqwrteur <unlvsur at live dot com> ---
libgcc:
/home/cqwrteur/toolchains_build/gcc/libgcc/libgcov.h:49:10: fatal error:
sys/mman.h: No such file or directory
49 | #include <sys/mman.h>
| ^~~~~~~~~~~~
compilation terminated.
make[4]: *** [Makefile:933: _gcov_interval_profiler.o] Error 1
make[4]: *** Waiting for unfinished jobs....
