I'm seeing a boostrap failure when I try to build the latest gcc version ( 8833eab4461b4b7050f06a231c3311cc1fa87523 ) :
checking whether time.h and sys/time.h may both be included... checking whether gcc supports -Wmissing-prototypes... i686-pc-linux-gnu checking host system type... make[3]: *** [buffer.o] Error 1 make[3]: Leaving directory `/ssd/fsf/tst-gcc11--base/libcody' make[2]: *** [all-stage1-libcody] Error 2 make[2]: *** Waiting for unfinished jobs.... Going back to the version to before libcody was added seems to build fine so far.