use manual formula for libsnd should fix mcaos build

.github/workflows/vangers_macos_build.yml

@@ -16,7 +16,7 @@ jobs:
     - name: install libs
       run: |
         brew install ninja yasm dylibbundler
-        brew reinstall -s libsndfile
+        brew reinstall -s ./formulas/libsndfile.rb
         brew reinstall -s ./formulas/libogg.rb
         brew reinstall -s ./formulas/libvorbis.rb
         brew install -s ./formulas/sdl2.rb

formulas/libsndfile.rb

@@ -0,0 +1,39 @@
+class Libsndfile < Formula
+  desc "C library for files containing sampled sound"
+  homepage "http://www.mega-nerd.com/libsndfile/"
+  url "https://github.com/erikd/libsndfile/releases/download/v1.0.30/libsndfile-1.0.30.tar.bz2"
+  sha256 "9df273302c4fa160567f412e10cc4f76666b66281e7ba48370fb544e87e4611a"
+  license "LGPL-2.1-or-later"
+
+  livecheck do
+    url :homepage
+    regex(/href=.*?libsndfile[._-]v?([\d.]+)\.t/i)
+  end
+
+  bottle do
+    cellar :any
+    sha256 "bf93a0083eecbcadc7eb391b9f429e0f55c4f571b5f4d9104cfaf60f8e5932dc" => :catalina
+    sha256 "ef1bd6eb6f6d33e22a05116b0893d85422e3ad7fced4252eace97232e523075d" => :mojave
+    sha256 "9d7d184ccf41eff27b8425a8fd50d60fa8a383338efcd0dcf7121f0ce7e3545c" => :high_sierra
+  end
+
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "libtool" => :build
+  depends_on "pkg-config" => :build
+  depends_on "flac"
+  depends_on "libogg"
+  depends_on "libvorbis"
+  depends_on "opus"
+
+  def install
+    system "autoreconf", "-fvi"
+    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
+    system "make", "install"
+  end
+
+  test do
+    output = shell_output("#{bin}/sndfile-info #{test_fixtures("test.wav")}")
+    assert_match "Duration    : 00:00:00.064", output
+  end
+end