Add homebrew formula for GDB with Mips support

tools/macos-mips/mipsel-none-elf-gdb.rb

@@ -0,0 +1,31 @@
+class MipselNoneElfGdb < Formula
+  desc "GDB: The GNU Project Debugger compiled for Mips"
+  homepage "https://sourceware.org/gdb/"
+  url "https://ftp.gnu.org/gnu/gdb/gdb-14.2.tar.xz"
+  sha256 "2d4dd8061d8ded12b6c63f55e45344881e8226105f4d2a9b234040efa5ce7772"
+
+  # inspired by https://github.com/orgs/Homebrew/discussions/1114#discussioncomment-8863715
+
+  depends_on "texinfo" => :build
+  depends_on "gmp"
+  depends_on "mpfr"
+  depends_on "python@3.10"
+
+  def install
+    mkdir "mipsel-none-elf-gdb-build" do
+      system "../configure", "--target=mipsel-none-elf",
+                             "--prefix=#{prefix}",
+                             "--enable-tui=yes",
+                             "--without-isl",
+                             "--disable-werror"
+      system "make"
+      system "make", "install"
+    end
+  end
+
+  # not sure what to test...
+  # test do
+  #   assert_match "f()", shell_output("#{bin}/mipsel-none-elf-c++filt _Z1fv")
+  # end
+
+end