[Bug 222233] sysutils/uefi-edk2-bhyve: still requires obsolete GCC 4.8 to build

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222233

--- Comment #7 from Peter Grehan <grehan at FreeBSD.org> ---
The port builds using gcc49, which is the most recent toolchain explicitly
supported in that version of UEFI.

However, using the trick of just replacing the gcc soft link when doing the
setup (the line "ln -s /usr/local/bin/gcc48 Build/gcc" from the instructions at
https://people.freebsd.org/~grehan/bhyve_uefi/bhyve-uefi-UDK2014.SP1-build.txt),
I was able to get clean (untested) builds using ports gcc5 (gcc 5.4.0) and gcc6
(gcc  6.4.0) on a FreeBSD 12-current amd64 machine.

It also built clean using ports gcc7 (7.2.0) after applying the one-line patch
from the upstream UEFI git commit
https://github.com/tianocore/edk2/commit/fe4a28ccbfd33

Perhaps the simplest way forward is to see what if any changes were made
upstream to the UEFI build to support gcc5 (possibly none), back-port those to
the bhyve UEFI branch, and cut over to gcc5 after verifying that the resultant
UEFI binary is ok.

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