Mesa: Fix Meson_options breakage (#4499)

* Fix Meson_options breakage

* bump version

packages/mesa.rb

@@ -3,7 +3,7 @@ require 'package'
 class Mesa < Package
   description 'Open-source implementation of the OpenGL specification'
   homepage 'https://www.mesa3d.org'
-  version '20.2.1-1'
+  version '20.2.1-2'
   compatibility 'all'
   source_url 'https://mesa.freedesktop.org/archive/mesa-20.2.1.tar.xz'
   source_sha256 'd1a46d9a3f291bc0e0374600bdcb59844fa3eafaa50398e472a36fc65fd0244a'
@@ -36,7 +36,13 @@ class Mesa < Package
 
     # Just use mostly defaults.
     system "meson",
-      #{CREW_MESON_OPTIONS},
+      "-Dprefix=#{CREW_PREFIX}",
+      "-Dlibdir=#{CREW_LIB_PREFIX}",
+      "-DLIB_INSTALL_DIR=#{CREW_LIB_PREFIX}",
+      "-Dmandir=#{CREW_MAN_PREFIX}",
+      "-DSYSCONFDIR=#{CREW_PREFIX}/etc",
+      "-Ddatadir=#{CREW_LIB_PREFIX}",
+      '-Dbuildtype=release',
       "builddir"
     system "ninja -C builddir"
   end