Build fails on Ubuntu 22.04 with GCC 8.5 #24647

Building master (f05cf59d91eb03857dd9bdcc77607764da0349d2) on Ubuntu 22.04 with GCC 8.5:

$ ./autogen.sh
$ ./configure --with-incompatible-bdb CC=gcc-8 CXX=g++-8
$ make clean
$ make
...
  CXX      libbitcoin_node_a-validation.o
during RTL pass: reload
validation.cpp: In member function ‘bool CChainState::FlushStateToDisk(BlockValidationState&, FlushStateMode, int)’:
validation.cpp:2386:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90)

 }
 ^
unrecognized DWARF version in .debug_info at 6
unrecognized DWARF version in .debug_info at 6
unrecognized DWARF version in .debug_info at 6
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-8/README.Bugs> for instructions.
make[2]: *** [Makefile:10721: libbitcoin_node_a-validation.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/home/hebasto/GitHub/bitcoin/src'
make[1]: *** [Makefile:19149: all-recursive] Error 1
make[1]: Leaving directory '/home/hebasto/GitHub/bitcoin/src'
make: *** [Makefile:816: all-recursive] Error 1

Interesting that the upstream bug has been fixed and backported:

gcc-8 (8.3.0-25) unstable; urgency=medium

  * Update to SVN 20191126 (r278718) from the gcc-8-branch.
    - Fix PR c/91401, PR tree-optimization/91355, PR middle-end/90840,
      PR target/90867 (x86), PR c/90898, PR middle-end/91450,
      PR c++/92384, PR tree-optimization/92056, PR tree-optimization/91665,
      PR middle-end/91001, PR middle-end/91105, PR middle-end/91106,
      PR middle-end/91623, PR other/92090, PR target/92389 (x86),
      PR target/87833 (x86), PR target/92095 (SPARC), PR fortran/92113,
      PR tree-optimization/85887, PR c++/92201, PR c++/91974,
      PR preprocessor/92296, PR fortran/92569, PR ada/92575.

 -- Matthias Klose <doko@debian.org>  Tue, 26 Nov 2019 08:34:48 +0100

You might have to report this upstream if you want it fixed?

Closing.

Ubuntu's gcc-8 compilers are crap. On hirsute and impish they fail even with filesystem stuff. A code example from https://en.cppreference.com/w/cpp/filesystem/temp_directory_path ends with a segfault.