Hi Ludovic, ludo@gnu.org (Ludovic Courtès) writes: > I pushed the patch as a stop-gap measure in > 91a56b4ab5e714e230c0088fb9f5ce0519efe1a0. FYI, this did not fix the build failure of 'gjs' on core-updates. After merging 'master' into my private branch based on 'core-updates', including your commit above, I tried reverting the workarounds for 'gjs' that I described earlier in this thread, except that I left 'gcc-7' in the native-inputs. It failed with the same error as before. Looking at the full log, I see that in the 'set-paths' phase, although 'CPATH' is now being set thanks to your commit above, 'C_INCLUDE_PATH' and 'CPLUS_INCLUDE_PATH' are still being set as well. I guess this is because gcc-final (based on gcc-5) is still included as an implicit input for gnu-build-system. I've attached the full build log below. Mark