Update README.md

[merajmasuk]

Had to install meson additionally because my system didn't have it. Otherwise the following error appears:

$ just sysext
error: Backtick failed with exit code 1
  |
4 | meson := `which meson`
  |          ^^^^^^^^^^^^^

[wash2]

I think that line in the justfile can probably be removed, along with the meson function below. Could you try that?

[soloturn]

there are a couple of references to meson here and there, but cosmic-epoch builds without meson.

[merajmasuk]

I don't think it's related to mason, but I'm receiving this error at the moment

  = note: /usr/bin/ld: cannot find -lgbm: No such file or directory
          collect2: error: ld returned 1 exit status

Edit: I found out that I needed to install libgbm-dev before building.

[merajmasuk]

This error occurred:

error: failed to run custom build command for `clang-sys v1.6.1`

Caused by:
  process didn't exit successfully: `/home/meraj/cosmic-epoch/xdg-desktop-portal-cosmic/target/release/build/clang-sys-4f3333257b3b6593/build-script-build` (exit status: 101)
  --- stdout
  cargo:warning=could not execute `llvm-config` one or more times, if the LLVM_CONFIG_PATH environment variable is set to a full path to valid `llvm-config` executable it will be used to try to find an instance of `libclang` on your system: "couldn't execute `llvm-config --prefix` (path=llvm-config) (error: No such file or directory (os error 2))"

  --- stderr
  thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "couldn't find any valid shared libraries matching: ['libclang.so', 'libclang-*.so'], set the `LIBCLANG_PATH` environment variable to a path where one of these files can be found (invalid: [])"', /home/meraj/.cargo/registry/src/github.com-1ecc6299db9ec823/clang-sys-1.6.1/build/dynamic.rs:206:45
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

I already have libclang on my system

$ dpkg -l | grep clang
ii  clang                                                       1:14.0-55~exp2                                                  amd64        C, C++ and Objective-C compiler (LLVM based), clang binary
ii  clang-14                                                    1:14.0.0-1ubuntu1                                               amd64        C, C++ and Objective-C compiler
ii  libclang-common-14-dev                                      1:14.0.0-1ubuntu1                                               amd64        Clang library - Common development package
ii  libclang-cpp11                                              1:11.1.0-6                                                      amd64        C++ interface to the Clang library
ii  libclang-cpp14                                              1:14.0.0-1ubuntu1                                               amd64        C++ interface to the Clang library
ii  libclang1:amd64                                             1:14.0-55~exp2                                                  amd64        C, C++ and Objective-C compiler (LLVM based)
ii  libclang1-14                                                1:14.0.0-1ubuntu1                                               amd64        C interface to the Clang library

Do I need to install the libclang-dev package?

[User8395]

Yeah the dev packages are required