#+PROPERTY: header-args :tangle /Users/yaqub/.emacs.d/early-init.el

* GCC Directory

#+begin_src emacs-lisp
    (defun homebrew-gcc-paths ()
    "Return GCC library paths from Homebrew installations.
    Detects paths for gcc and libgccjit packages to be used in LIBRARY_PATH."
    (let* ((paths '())
            (brew-bin (or (executable-find "brew")
                        (let ((arm-path "/opt/homebrew/bin/brew")
                                (intel-path "/usr/local/bin/brew"))
                            (cond
                            ((file-exists-p arm-path) arm-path)
                            ((file-exists-p intel-path) intel-path))))))

        (when brew-bin
        ;; Get gcc paths.
        (let* ((gcc-prefix (string-trim
                            (shell-command-to-string
                            (concat brew-bin " --prefix gcc"))))
                (gcc-lib-current (expand-file-name "lib/gcc/current" gcc-prefix)))
            (push gcc-lib-current paths)

            ;; Find apple-darwin directory.
            (let* ((default-directory gcc-lib-current)
                (arch-dirs (file-expand-wildcards "gcc/*-apple-darwin*/*[0-9]")))
            (when arch-dirs
                (push (expand-file-name
                    (car (sort arch-dirs #'string>)))
                    paths))))

        ;; Get libgccjit paths
        (let* ((jit-prefix (string-trim
                            (shell-command-to-string
                            (concat brew-bin " --prefix libgccjit"))))
                (jit-lib-current (expand-file-name "lib/gcc/current" jit-prefix)))
            (push jit-lib-current paths)))

        (nreverse paths)))

    (defun setup-macos-native-comp-library-paths ()
    "Set up LIBRARY_PATH for native compilation on macOS.
    Includes Homebrew GCC paths and CommandLineTools SDK libraries."
    (let* ((existing-paths (split-string (or (getenv "LIBRARY_PATH") "") ":" t))
            (gcc-paths (homebrew-gcc-paths))
            (clt-paths '("/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"))
            (unique-paths (delete-dups
                            (append existing-paths gcc-paths clt-paths))))

        (setenv "LIBRARY_PATH" (mapconcat #'identity unique-paths ":"))))

    ;; Set up library paths for native compilation on macOS.
    (when (eq system-type 'darwin)
    (setup-macos-native-comp-library-paths))
#+end_src