We can’t set this for cross-compiling since we use the GNU linker.
Instead, set these flags only when targetPlatform is macOS.

Fixes #80754

Fixes #83141

Addresses #71803:
Kernel options are not merged as described, especially the "optional"
aspects. The error silences legitimate warnings.

With the fix in kernel configuration merging, some kernel configuration items
marked as mandatory now correctly trigger an error when unused (while they
previously were unused).

I hate the thing too even though I made it, and rather just get rid of
it. But we can't do that yet. In the meantime, this brings us more
inline with autoconf and will make it slightly easier for me to write a
pkg-config wrapper, which we need.

This is achieved by patching qtbase `qmake/generators/makefile.cpp` to
unconditionally add the missing `-I${includedir}`. The include path is
otherwise conditioned on whether it is already available or not. Since there is
no unified set of system include paths in nix this cause problems as reported
in #52457.

Fixes #56290.

*-wrapper; Switch from `infixSalt` to `suffixSalt`

This reverts commit 237ef30.

Looks like we're trying to bump binutils again?

bintools: only add macos flags when targeting macOS

The compiler does not need it anymore, has not needed it for many years
iirc. This just goes in and pollutes the environment overriding the
users GOPATH and causing grief.

Go even warns about it itself, without vs with this commit:

```sh
~> go env GOPATH
/home/manny/go
~> nix-shell -p go
~> go env GOPATH
warning: GOPATH set to GOROOT (/nix/store/gvw1mfpdrk7i82884yhxf9lf5j3c12zm-go-1.14.1/share/go) has no effect
/nix/store/gvw1mfpdrk7i82884yhxf9lf5j3c12zm-go-1.14.1/share/go
~> exit
~> nix-shell -I nixpkgs=cloned/NixOS/nixpkgs -p go
~> go env GOPATH
/home/manny/go
~> exit
```

There are two ways to build a package for aarch32 on an aarch64 machine:
either by cross compiling as normal, or by adding armv6l/armv7l to
extraPlatforms and doing a non-cross compile.

Previously, NSS failed to build with both methods: when using
extraPlatforms, things failed because NSS includes an armv8-specific
file (presumably based on the result of uname); when cross compiling,
NSS's build system expects to receive an architecture name of arm (not
armv6l or whatever), so was failing to include some arch-specific code
and failed with a linker error.

This commit fixes those things by a) always passing the arch, even when
not cross-compiling, and b) special-casing aarch32 to always pass in an
arch of arm.

nss: fix building for aarch32 on aarch64

https://golang.org/doc/devel/release.html#go1.14.minor

mesonbuild/meson@0.54.1...0.54.2

* format with nixpkgs-fmt
* reorder the attributes
* use pkg-config instead of the pkgconfig alias
* optional → optionals
* remove top-level `with lib;`

* remove glibcLocales now that glibc contains C.UTF-8
* remove libintl, that should be in by default or something
* update homepage
* add gnome team to maintainers
* remove the temporary libregress closer its creation

and add comments

stdenv-darwin: now with 50% less LLVM!

See comments for details. Patch can be removed whend version is bumped.

This was very similar to the Mesa issues fixed in
62e6d73: the user-written code is
looking up an unprefixed binutils program.

[I think we should have a way in Meson of specifying a program prefix in
the cross / native files, as a fallback for any program that isn't
explicitly specified. This could both be availible for user written
rules, and help with the default rules.]

Fixes NixOS/mobile-nixos#161

Otherwise we'd be delaying this staging-next cycle noticeably.

In that case it specified $doc output but didn't even create it.
I expect it's better to do it this way instead of creating it
as an empty directory.
(Only the failed builds get rebuilt by this commit.)

In particular, this fixes ISO evaluation.

Some of the options didn't have correct kernel version constraints,
others had been removed or made optional unnecessarily in #84032.