glpk: migrate from homebrew/science

Closes #15833.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/glpk.rb

@@ -0,0 +1,31 @@
+class Glpk < Formula
+  desc "Library for Linear and Mixed-Integer Programming"
+  homepage "https://www.gnu.org/software/glpk/"
+  url "https://ftp.gnu.org/gnu/glpk/glpk-4.62.tar.gz"
+  mirror "https://ftpmirror.gnu.org/glpk/glpk-4.62.tar.gz"
+  sha256 "096e4be3f83878ccf70e1fdb62ad1c178715ef8c0d244254c29e2f9f0c1afa70"
+
+  depends_on "gmp"
+
+  def install
+    system "./configure", "--prefix=#{prefix}",
+                          "--disable-dependency-tracking",
+                          "--with-gmp"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-EOF.undent
+      #include <stdio.h>
+      #include "glpk.h"
+
+      int main(int argc, const char *argv[])
+      {
+        printf("%s", glp_version());
+        return 0;
+      }
+    EOF
+    system ENV.cc, "test.c", "-L#{lib}", "-I#{include}", "-lglpk", "-o", "test"
+    assert_match version.to_s, shell_output("./test")
+  end
+end