with structuredAttrs lists will be bash arrays which cannot be exported
which will be a issue with some patches and some wrappers like cc-wrapper
this makes it clearer that NIX_CFLAGS_COMPILE must be a string as lists
in env cause a eval failure
FreeBSD implements Linux's evdev API, but doesn't come with headers
for it. Instead, the Linux headers are just modified to be suitable
for FreeBSD, via a port called evdev-proto. I don't want to copy the
complicated sed expressions from the port into Nixpkgs, so instead we
just build and install the port inside a Nix derivation.
Always set `SRCTOP`, set it with abs path
llvmPackages: Bump minimum version for FreeBSD
llvmPackages_*, libgcc, compiler_rt: Hack in enough libs that one can compiler C
freebsd.compat: Rename some things to work around cc-wrapper change
0bea4a194f / #191724 in particular
