https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110408
--- Comment #1 from Brjd <brjd_epdjq36 at kygur dot com> --- Test with specs file %rename lib old_lib *lib: --start-group -lgcc -lc --end-group %(old_lib) and hello.cpp g++ hello.cpp -specs=/path-to-specs g++-13: fatal error: specs file malformed after 36 characters compilation terminated. g++12 no error g++-4 no error.