Comment 1 for bug 2036757

I compared with the most recent (2021-06-13) buildlog from the debian pkg here https://buildd.debian.org/status/fetch.php?pkg=syslinux&arch=amd64&ver=3%3A6.04~git20190206.bf6db5b4%2Bdfsg1-3%2Bb1&stamp=1623592451&raw=0 and the -fcf-protection flag is not present.

I will try to determine when it was added and why it is not compatible.

Found this similar bug https://bugs.launchpad.net/ubuntu/+source/gcc-11/+bug/1940029

The error message maybe misleading, because this flag is supposed to be compatible with the i386 arch (as per this doc https://wiki.ubuntu.com/ToolChain/CompilerFlags#A-fcf-protection).