WORKAROUND: sudo ln -fs gcc-8 /usr/bin/gcc
** Description changed: Compiling kernels & kernel modules fails due to these errors: ./include/linux/compiler.h:193:1: error: ‘-mindirect-branch’ and ‘-fcf- protection’ are not compatible - (This happens with any kernel modules.) This appears to be due to the changes in 9.1.0-3ubuntu1 enabling -fcf- protection by default on 19.10's gcc-9. Switching to gcc-8 allows compilation to proceed. + + WORKAROUND: + + sudo ln -fs gcc-8 /usr/bin/gcc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1830961 Title: Kernels & kernel drivers fail to build with gcc-9 [error: ‘-mindirect- branch’ and ‘-fcf-protection’ are not compatible] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-9/+bug/1830961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs