New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/issues/7498#issuecomment-506645819
Comment:
`common/cross-profiles/aarch64.sh` has a comment for `XBPS_CFLAGS` which tells `# XXX not yet supported: -fstack-protector-strong` but our `gcc` template enables `--enable-default-ssp` and perhaps `gcc` decides to use the strong stack protection.

I don't know if the comment above still holds true, though.