cuba 4.2 (new formula)

Closes #26535.

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

Formula/cuba.rb

@@ -0,0 +1,19 @@
+class Cuba < Formula
+  desc "Library for multidimensional numerical integration"
+  homepage "http://www.feynarts.de/cuba/"
+  url "http://www.feynarts.de/cuba/Cuba-4.2.tar.gz"
+  sha256 "6b75bb8146ae6fb7da8ebb72ab7502ecd73920efc3ff77a69a656db9530a5eef"
+
+  def install
+    ENV.deparallelize # Makefile does not support parallel build
+    system "./configure", "--prefix=#{prefix}"
+    system "make", "install"
+    pkgshare.install "demo"
+  end
+
+  test do
+    system ENV.cc, "-o", "demo", "-L#{lib}", "-lcuba",
+                   "#{pkgshare}/demo/demo-c.c"
+    system "./demo"
+  end
+end