Add mesa

packages/mesa.rb

+require 'package'
+
+class Mesa < Package
+  description 'Open-source implementation of the OpenGL specification'
+  homepage 'https://www.mesa3d.org'
+  version '17.1.5'
+  source_url 'ftp://ftp.freedesktop.org/pub/mesa/mesa-17.1.5.tar.xz'
+  source_sha256 '378516b171712687aace4c7ea8b37c85895231d7a6d61e1e27362cf6034fded9'
+
+  depends_on 'libdrm'
+  depends_on 'xorg_proto'
+  depends_on 'libx11'
+  depends_on 'libxext'
+  depends_on 'libxfixes'
+  depends_on 'libxdamage'
+  depends_on 'libxcb'
+  depends_on 'libxtrans'
+  depends_on 'libxkbfile'
+  depends_on 'wayland'
+
+  def self.build
+    system "./configure --enable-gles2 --with-egl-platforms=x11,wayland,drm --enable-gbm --enable-shared-glapi --with-gallium-drivers=swrast --disable-dri3"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end