termbox 1.1.0 (import from head-only)

Closes #4192.

Signed-off-by: Baptiste Fontaine <b@ptistefontaine.fr>

Formula/termbox.rb

@@ -0,0 +1,28 @@
+class Termbox < Formula
+  desc "Library for writing text-based user interfaces"
+  homepage "https://code.google.com/p/termbox/"
+  url "https://github.com/nsf/termbox/archive/v1.1.0.tar.gz"
+  sha256 "2743ee4aeb0ff39fadbaf945b76c43e6f6bba544156f2576282b775a3067d748"
+
+  head "https://github.com/nsf/termbox.git"
+
+  def install
+    system "./waf", "configure", "--prefix=#{prefix}"
+    system "./waf"
+    system "./waf", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <termbox.h>
+      int main() {
+        // we can't test other functions because the CI test runs in a
+        // non-interactive shell
+        tb_set_clear_attributes(42, 42);
+      }
+    EOS
+
+    system ENV.cc, "test.c", "-L#{lib}", "-ltermbox", "-o", "test"
+    system "./test"
+  end
+end