https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101389
--- Comment #2 from Rainer Orth <ro at gcc dot gnu.org> --- (In reply to Gaius Mulley from comment #1) > Thanks for the report - I've pushed some fixes to various Makefiles. I've > tested it using make -j48 and believe it is fixed. A -j48 build on x86_64-pc-linux-gnu worked ok yesterday. However, on i386-pc-solaris2.11 I ran into exactly the same issue again (i.e. affecting the build of ASCII.lo). I managed to complete the build sequentially afterwards, but it's still strange. Investigation was hampered by the libgm2 Makefiles not being self-contained. I'll file a separate PR for that.
