bison: update 3.8.2 bottle.

Formula/b/bison.rb

@@ -0,0 +1,56 @@
+class Bison < Formula
+  desc "Parser generator"
+  homepage "https://www.gnu.org/software/bison/"
+  # X.Y.9Z are beta releases that sometimes get accidentally uploaded to the release FTP
+  url "https://ftp.gnu.org/gnu/bison/bison-3.8.2.tar.xz"
+  mirror "https://ftpmirror.gnu.org/bison/bison-3.8.2.tar.xz"
+  sha256 "9bba0214ccf7f1079c5d59210045227bcf619519840ebfa80cd3849cff5a5bf2"
+  license "GPL-3.0-or-later"
+  version_scheme 1
+
+  bottle do
+    root_url "https://github.com/gromgit/homebrew-core-aarch64_linux/releases/download/bison-3.8.2"
+    sha256 cellar: :any_skip_relocation, aarch64_linux: "2a0732c30f659e4581b2c6eefc5a2a0acf5596302f6be2982a8517a9b3863e22"
+  end
+
+  keg_only :provided_by_macos
+
+  uses_from_macos "m4"
+
+  def install
+    system "./configure", "--disable-dependency-tracking",
+                          "--enable-relocatable",
+                          "--prefix=/output",
+                          "M4=m4"
+    system "make", "install", "DESTDIR=#{buildpath}"
+    prefix.install Dir["#{buildpath}/output/*"]
+  end
+
+  test do
+    (testpath/"test.y").write <<~EOS
+      %{ #include <iostream>
+         using namespace std;
+         extern void yyerror (char *s);
+         extern int yylex ();
+      %}
+      %start prog
+      %%
+      prog:  //  empty
+          |  prog expr '\\n' { cout << "pass"; exit(0); }
+          ;
+      expr: '(' ')'
+          | '(' expr ')'
+          |  expr expr
+          ;
+      %%
+      char c;
+      void yyerror (char *s) { cout << "fail"; exit(0); }
+      int yylex () { cin.get(c); return c; }
+      int main() { yyparse(); }
+    EOS
+    system bin/"bison", "test.y"
+    system ENV.cxx, "test.tab.c", "-o", "test"
+    assert_equal "pass", shell_output("echo \"((()(())))()\" | ./test")
+    assert_equal "fail", shell_output("echo \"())\" | ./test")
+  end
+end