* Add setupHook for meson/ninja build
* libhttpseverywhere: Use meson/ninja setupHooks
* jamomacore: Remove superfluous ninja buildInput
* Remove obsolete ninja buildPhases
These are all handled by ninja's setup hook.
* lean2, xcbuild: fix build with ninja setup hook
Ninja is a runtime dependency here. However, cmake can generate Ninja
build files as well to satisfy the setup hook.
* qtwebengine: fix build with ninja setup hook
In configured builds other tools tries to call meson by directly
passing meson tools directly to python. Since they were shell scripts
due wrapping this failed
/usr/bin/env is not available in chroot builds. Invoke the python3
interpreter directly instead of trying to let env do it (which fails).
Fixes this build error:
$ nix-build -A meson
...
/nix/store/HASH-stdenv/setup: ./install_meson.py: /usr/bin/env: bad interpreter: No such file or directory
builder for ‘/nix/store/HASH-meson-0.26.0.drv’ failed with exit code 126
