fnlfmt: use included Makefile for build

[joshbode]

Solves missing fnlfmt pagkage error since it is not being inlined.

Currently, this error is being encountered:

$ fnlfmt --help

/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/bin/lua: ...65hbid7205ziz5i25vjw3gmixjxyjddh-fnlfmt-0.3.2/bin/fnlfmt:6727: module 'fnlfmt' not found:
        no field package.preload['fnlfmt']
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/share/lua/5.2/fnlfmt.lua'
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/share/lua/5.2/fnlfmt/init.lua'
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/lib/lua/5.2/fnlfmt.lua'
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/lib/lua/5.2/fnlfmt/init.lua'
        no file './fnlfmt.lua'
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/lib/lua/5.2/fnlfmt.so'
        no file '/nix/store/k6ms9frir783p3fs3c3fjb9rc8jkkp2p-lua-5.2.4/lib/lua/5.2/loadall.so'
        no file './fnlfmt.so'
stack traceback:
        [C]: in function 'require'
        ...65hbid7205ziz5i25vjw3gmixjxyjddh-fnlfmt-0.3.2/bin/fnlfmt:6727: in main chunk
        [C]: in ?

$ tree /nix/store/65hbid7205ziz5i25vjw3gmixjxyjddh-fnlfmt-0.3.2/
/nix/store/65hbid7205ziz5i25vjw3gmixjxyjddh-fnlfmt-0.3.2/
└── bin
    └── fnlfmt

with the change to use the included Makefile then fnlfmt executes as expected:

$ fnlfmt --help

Usage: fnlfmt [--no-comments] [--fix] [--check] FILENAME...
With the --fix or --check argument, multiple files can be specified.
With the --fix argument, formats all the files in-place;
with the --check argument, only checks if all the files are formatted;
otherwise prints the formatted file to stdout.

$ tree /nix/store/7mpxvikyjk4n4vj1v8b2mcr9cj1sclbp-fnlfmt-0.3.2
/nix/store/7mpxvikyjk4n4vj1v8b2mcr9cj1sclbp-fnlfmt-0.3.2
├── bin
│   └── fnlfmt
└── share
    ├── lua
    │   └── 5.2
    │       └── fnlfmt.lua
    └── man
        └── man1
            └── fnlfmt.1.gz

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

---

Add a 👍 reaction to pull requests you find important.