https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112300
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:221166ad15eb37b047c77118f2eb1c8442eaa27b commit r14-5868-g221166ad15eb37b047c77118f2eb1c8442eaa27b Author: Jakub Jelinek <ja...@redhat.com> Date: Mon Nov 27 09:22:20 2023 +0100 mips: Fix up mips*-sde-elf* build [PR112300] As reported in the PR, mipsisa64r2-sde-elf doesn't build because HEAP_TRAMPOLINES_INIT macro isn't defined anywhere. It is normally defined by # Figure out if we need to enable heap trampolines by default case ${target} in *-*-darwin2*) # Currently, we do this for macOS 11 and above. tm_defines="$tm_defines HEAP_TRAMPOLINES_INIT=1" ;; *) tm_defines="$tm_defines HEAP_TRAMPOLINES_INIT=0" ;; esac in config.gcc, but mips*-sde-elf* is the only target which overwrites tm_defines shell variable rather than just appending to it (or in one case prepending), all other targets append something to it, including other mips* triplets. I believe (just from looking at config.gcc) that the difference is that LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4 HEAP_TRAMPOLINES_INIT=0 isn't defined without the patch and is with the patch. I think defining those first 4 shouldn't cause any harm and defining the last one is required for it to actually build at all. 2023-11-27 Jakub Jelinek <ja...@redhat.com> PR target/112300 * config.gcc (mips*-sde-elf*): Append to tm_defines rather than overwriting them.