make gtk3Support non-optional, because it hasn't been for a long time
also make gtk2 conditional on firefox older than 90, because we can get
rid of it with firefox 90, but it's still needed by the current ESR
release
This most notably fixes cross _evaluation_ of chromium which previously
would fail because makeWrapper relies on runtimeShell which is not
available in the HostTarget package set.
I tested that the native chromium build still works, but haven't tried
cross compiling it yet. There very well may be additional errors, but at
least they will be build errors, not hard to understand evaluation
errors.
This executable is required to fix a startup error.
TODO: Refactor the Nix expressions to allow chromiumVersionAtLeast, etc.
"everywhere" and investigate the VM test failure.
The final linking still fails though, even with llvm-git.
We might have to diable use_thin_lto for now:
ld.lld: error: undefined symbol: snappy::Compress(char const*, unsigned long, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*)
>>> referenced by compression_module.cc
>>> thinlto-cache/Thin-ed5ed5.tmp.o:(reporting::CompressionModule::CompressRecord(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, base::OnceCallback<void (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, absl::optional<reporting::CompressionInformation>)>) const)
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
See https://bugs.chromium.org/p/chromium/issues/detail?id=1215229.
Before this the build failed with this error:
[101/47617] ACTION //build/util:chromium_git_revision(//build/toolchain/linux/unbundle:default)oaded_data.pbchain/linux/unbundle:default)
FAILED: gen/build/util/chromium_git_revision.h
python3 ../../build/util/lastchange.py --header gen/build/util/chromium_git_revision.h --revision-id-only --revision-id-prefix @ -m\ CHROMIUM_GIT_REVISION
ERROR:root:Failed to get git top directory from '/build/chromium-93.0.4542.2/build/util': Git command 'git git rev-parse --show-toplevel' in /build/chromium-93.0.4542.2/build/util failed: [Errno 2] No such file or directory: 'git'
