Added necessary packages for msg

Formula/guile-config.rb

@@ -0,0 +1,48 @@
+class GuileConfig < Formula
+  desc "Module for handling application configuration in a declarative way"
+  homepage "https://gitlab.com/a-sassmannshausen/guile-config/"
+  url "https://gitlab.com/api/v4/projects/7016362/repository/archive?sha=8a4f6442ac42084b00713dde3181c3538d52edbf"
+  sha256 "6e5099475e23dcab4253f8c59b113c1cf0cb250fb9709582af7a5b2902999698"
+  version "main"
+  
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "pkg-config" => :build
+  depends_on "texinfo" => :build
+  depends_on "guile-next"
+
+  def install
+    ENV["GUILE_AUTO_COMPILE"] = "0"
+    # We need this so we can find other modules.
+    ENV["GUILE_LOAD_PATH"] = HOMEBREW_PREFIX/"share/guile/site/3.0"
+    ENV["GUILE_LOAD_COMPILED_PATH"] = HOMEBREW_PREFIX/"lib/guile/3.0/site-ccache"
+    ENV["GUILE_SYSTEM_EXTENSIONS_PATH"] = HOMEBREW_PREFIX/"lib/guile/3.0/extensions"
+    
+    system "autoreconf", "-vif"
+    system "./configure", "--prefix=#{prefix}"
+    system "make", "install"
+  end
+
+  def caveats
+    <<~EOS
+      Remember to add the following to your .bashrc or equivalent in order to use this module:
+        export GUILE_LOAD_PATH="#{HOMEBREW_PREFIX}/share/guile/site/3.0"
+        export GUILE_LOAD_COMPILED_PATH="#{HOMEBREW_PREFIX}/lib/guile/3.0/site-ccache"
+        export GUILE_SYSTEM_EXTENSIONS_PATH="#{HOMEBREW_PREFIX}/lib/guile/3.0/extensions"
+    EOS
+  end
+
+  test do
+    config = testpath/"config.scm"
+    config.write <<~EOS
+      (use-modules (config))
+    EOS
+
+    ENV["GUILE_AUTO_COMPILE"] = "0"
+    ENV["GUILE_LOAD_PATH"] = HOMEBREW_PREFIX/"share/guile/site/3.0"
+    ENV["GUILE_LOAD_COMPILED_PATH"] = HOMEBREW_PREFIX/"lib/guile/3.0/site-ccache"
+    ENV["GUILE_SYSTEM_EXTENSIONS_PATH"] = HOMEBREW_PREFIX/"lib/guile/3.0/extensions"
+
+    system "guile", config
+  end
+end

Formula/guile-hall.rb

@@ -3,12 +3,12 @@ class GuileHall < Formula
   homepage "https://gitlab.com/a-sassmannshausen/guile-hall/"
   url "https://gitlab.com/api/v4/projects/7016408/repository/archive?sha=cc0c9016220de42084f9b61f7353edeb62dbff82"
   sha256 "997331e60cd009be93fd7d6d3dacaa4eec87499cd6345ee14602ae323318ae62"
-
+  
   depends_on "autoconf" => :build
   depends_on "automake" => :build
   depends_on "pkg-config" => :build
   depends_on "texinfo" => :build
-  depends_on "guile"
+  depends_on "guile-next"
   depends_on "guile-lib"
   depends_on "guile-config"
 

Formula/guile-next.rb

@@ -0,0 +1,94 @@
+class GuileNext < Formula
+  desc "GNU Ubiquitous Intelligent Language for Extensions"
+  homepage "https://www.gnu.org/software/guile/"
+  url "https://git.savannah.gnu.org/git/guile.git", revision: "bce91cebedda016b479972655c680acc6706e539"
+  version "3.0.10"
+  license "LGPL-3.0-or-later"
+  # Credit goes to aconchillo
+  
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "gettext" => :build
+  depends_on "gnu-sed" => :build
+  depends_on "bdw-gc"
+  depends_on "gmp"
+  depends_on "libtool"
+  depends_on "libunistring"
+  depends_on "pkg-config" # guile-config is a wrapper around pkg-config.
+  depends_on "readline"
+
+  uses_from_macos "flex" => :build
+  uses_from_macos "gperf"
+  uses_from_macos "libffi", since: :catalina
+  uses_from_macos "libxcrypt"
+
+  on_system :linux, macos: :ventura_or_newer do
+    depends_on "texinfo" => :build
+  end
+
+  def install
+    # Avoid superenv shim
+    inreplace "meta/guile-config.in", "@PKG_CONFIG@", Formula["pkg-config"].opt_bin/"pkg-config"
+
+    system "./autogen.sh"
+
+    system "./configure", *std_configure_args,
+                          "--with-libreadline-prefix=#{Formula["readline"].opt_prefix}",
+                          "--with-libgmp-prefix=#{Formula["gmp"].opt_prefix}",
+                          "--disable-nls"
+    system "make", "install"
+
+    # A really messed up workaround required on macOS --mkhl
+    Pathname.glob("#{lib}/*.dylib") do |dylib|
+      lib.install_symlink dylib.basename => "#{dylib.basename(".dylib")}.so"
+    end
+
+    # This is either a solid argument for guile including options for
+    # --with-xyz-prefix= for libffi and bdw-gc or a solid argument for
+    # Homebrew automatically removing Cellar paths from .pc files in favour
+    # of opt_prefix usage everywhere.
+    inreplace lib/"pkgconfig/guile-3.0.pc" do |s|
+      s.gsub! Formula["bdw-gc"].prefix.realpath, Formula["bdw-gc"].opt_prefix
+      s.gsub! Formula["libffi"].prefix.realpath, Formula["libffi"].opt_prefix if !OS.mac? || MacOS.version < :catalina
+    end
+
+    (share/"gdb/auto-load").install Dir["#{lib}/*-gdb.scm"]
+  end
+
+  def post_install
+    # Create directories so installed modules can create links inside.
+    (HOMEBREW_PREFIX/"lib/guile/3.0/site-ccache").mkpath
+    (HOMEBREW_PREFIX/"lib/guile/3.0/extensions").mkpath
+    (HOMEBREW_PREFIX/"share/guile/site/3.0").mkpath
+  end
+
+  def caveats
+    <<~EOS
+      To use `guile-next` you need to unlink `guile` and then link `guile-next`:
+        brew unlink guile
+        brew link guile-next
+
+      Guile libraries can now be installed here:
+          Source files: #{HOMEBREW_PREFIX}/share/guile/site/3.0
+        Compiled files: #{HOMEBREW_PREFIX}/lib/guile/3.0/site-ccache
+            Extensions: #{HOMEBREW_PREFIX}/lib/guile/3.0/extensions
+
+      Add the following to your .bashrc or equivalent:
+        export GUILE_LOAD_PATH="#{HOMEBREW_PREFIX}/share/guile/site/3.0"
+        export GUILE_LOAD_COMPILED_PATH="#{HOMEBREW_PREFIX}/lib/guile/3.0/site-ccache"
+        export GUILE_SYSTEM_EXTENSIONS_PATH="#{HOMEBREW_PREFIX}/lib/guile/3.0/extensions"
+    EOS
+  end
+
+  test do
+    hello = testpath/"hello.scm"
+    hello.write <<~EOS
+      (display "Hello World")
+      (newline)
+    EOS
+
+    ENV["GUILE_AUTO_COMPILE"] = "0"
+
+    system bin/"guile", hello
+  end
+end