diff --git a/.gitignore b/.gitignore
index d907c43..1df4359 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-*.lua
+bin/*.lua
+moonbuild/*.lua
+moonbuild/*/*.lua
diff --git a/out/moonbuild.lua b/out/moonbuild.lua
new file mode 100644
index 0000000..9c89e01
--- /dev/null
+++ b/out/moonbuild.lua
@@ -0,0 +1,2674 @@
+do
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._" ] = function( ... ) local arg = _G.arg;
+local gmatch, match, gsub
+do
+  local _obj_0 = string
+  gmatch, match, gsub = _obj_0.gmatch, _obj_0.match, _obj_0.gsub
+end
+local insert, remove, concat, sub, sort
+do
+  local _obj_0 = table
+  insert, remove, concat, sub, sort = _obj_0.insert, _obj_0.remove, _obj_0.concat, _obj_0.sub, _obj_0.sort
+end
+local _fs = require('moonbuild._fs')
+local _cmd = require('moonbuild._cmd')
+local _util = require('moonbuild._util')
+local _common = require('moonbuild._common')
+local _ = { }
+for k, lib in pairs({
+  _fs = _fs,
+  _cmd = _cmd,
+  _util = _util,
+  _common = _common
+}) do
+  _[k] = lib
+  local _list_0 = lib()
+  for _index_0 = 1, #_list_0 do
+    local n = _list_0[_index_0]
+    _[n] = lib[n]
+  end
+end
+return _
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._cmd" ] = function( ... ) local arg = _G.arg;
+local parseargs, escape
+do
+  local _obj_0 = require('moonbuild._cmd.common')
+  parseargs, escape = _obj_0.parseargs, _obj_0.escape
+end
+local ok, cmd, backend = false, nil, nil
+if not (ok) then
+  ok, cmd = pcall(function()
+    return require('moonbuild._cmd.posix')
+  end)
+  backend = 'posix'
+end
+if not (ok) then
+  ok, cmd = pcall(function()
+    return require('moonbuild._cmd.lua')
+  end)
+  backend = 'lua'
+end
+if not (ok) then
+  error("unable to load any cmd library, tried luaposix and posix commands")
+end
+do
+  local _tbl_0 = { }
+  for k, v in pairs(cmd) do
+    _tbl_0[k] = v
+  end
+  cmd = _tbl_0
+end
+cmd.backend = backend
+cmd.parseargs = parseargs
+cmd.escape = escape
+return setmetatable(cmd, {
+  __call = function(self)
+    return {
+      'cmd',
+      'cmdrst',
+      'sh'
+    }
+  end
+})
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._cmd.common" ] = function( ... ) local arg = _G.arg;
+local gsub, sub, match
+do
+  local _obj_0 = string
+  gsub, sub, match = _obj_0.gsub, _obj_0.sub, _obj_0.match
+end
+local concat
+concat = table.concat
+local specialchars = {
+  ['\"'] = '\\\"',
+  ['\\'] = '\\\\',
+  ['\''] = '\\\'',
+  ['\n'] = '\\n',
+  ['\r'] = '\\r',
+  ['\t'] = '\\t'
+}
+local replacespecialchar
+replacespecialchar = function(c)
+  return specialchars[c] or c
+end
+local escape
+escape = function(arg)
+  if match(arg, "^[a-zA-Z0-9_.-]+$") then
+    return arg
+  end
+  return '"' .. (gsub(arg, "([\"\\\n\r\t])", replacespecialchar)) .. '"'
+end
+local parseargs
+parseargs = function(argstr)
+  local state = 'normal'
+  local current, ci = { }, 1
+  local args, ai = { }, 1
+  local c = nil
+  local i = 0
+  local running = true
+  local add
+  add = function()
+    current[ci], ci = c, ci + 1
+  end
+  local push
+  push = function()
+    if ci ~= 1 then
+      args[ai], ai, current, ci = (concat(current)), ai + 1, { }, 1
+    end
+  end
+  local addv
+  addv = function(v)
+    current[ci], ci = v, ci + 1
+  end
+  local fail
+  fail = function(msg)
+    return error("failed to parse: " .. tostring(msg) .. " in state " .. tostring(state) .. " at pos " .. tostring(i), 2)
+  end
+  local finish
+  finish = function()
+    running = false
+  end
+  local EOF = ''
+  while running do
+    i = i + 1
+    c = sub(argstr, i, i)
+    local _exp_0 = state
+    if 'normal' == _exp_0 then
+      local _exp_1 = c
+      if '\"' == _exp_1 then
+        state = 'doublequote'
+      elseif '\'' == _exp_1 then
+        state = 'singlequote'
+      elseif ' ' == _exp_1 then
+        push()
+      elseif '\n' == _exp_1 then
+        push()
+      elseif '\t' == _exp_1 then
+        push()
+      elseif '\\' == _exp_1 then
+        state = 'backslashnormal'
+      elseif EOF == _exp_1 then
+        push()
+        finish()
+      else
+        add()
+      end
+    elseif 'doublequote' == _exp_0 then
+      local _exp_1 = c
+      if '\"' == _exp_1 then
+        state = 'normal'
+      elseif '\\' == _exp_1 then
+        state = 'backslashdoublequote'
+      elseif EOF == _exp_1 then
+        fail("unexpected EOF")
+      else
+        add()
+      end
+    elseif 'singlequote' == _exp_0 then
+      local _exp_1 = c
+      if '\'' == _exp_1 then
+        state = 'normal'
+      elseif EOF == _exp_1 then
+        fail("unexpected EOF")
+      else
+        add()
+      end
+    elseif 'backslashnormal' == _exp_0 then
+      local _exp_1 = c
+      if '\n' == _exp_1 then
+        state = 'normal'
+      elseif EOF == _exp_1 then
+        fail("unexpected EOF")
+      else
+        add()
+        state = 'normal'
+      end
+    elseif 'backslashdoublequote' == _exp_0 then
+      local _exp_1 = c
+      if '$' == _exp_1 then
+        add()
+        state = 'doublequote'
+      elseif '`' == _exp_1 then
+        add()
+        state = 'doublequote'
+      elseif '\"' == _exp_1 then
+        add()
+        state = 'doublequote'
+      elseif '\\' == _exp_1 then
+        add()
+        state = 'doublequote'
+      elseif '\n' == _exp_1 then
+        state = 'doublequote'
+      elseif EOF == _exp_1 then
+        fail("unexpected EOF")
+      else
+        addv('\\')
+        add()
+        state = 'doublequote'
+      end
+    end
+  end
+  return args
+end
+return {
+  escape = escape,
+  parseargs = parseargs
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._cmd.lua" ] = function( ... ) local arg = _G.arg;
+local escape
+escape = require('moonbuild._cmd.common').escape
+local flatten
+flatten = require('moonbuild._common').flatten
+local execute
+execute = require('moonbuild.compat.execute').execute
+local popen
+popen = io.popen
+local concat
+concat = table.concat
+local cmdline
+cmdline = function(...)
+  return concat((function(...)
+    local _accum_0 = { }
+    local _len_0 = 1
+    local _list_0 = flatten(...)
+    for _index_0 = 1, #_list_0 do
+      local arg = _list_0[_index_0]
+      _accum_0[_len_0] = escape(arg)
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end)(...), ' ')
+end
+local cmd
+cmd = function(...)
+  local ok, ret, code = execute(cmdline(...))
+  if not (ok) then
+    return error("command " .. tostring(first(...)) .. " exited with " .. tostring(code) .. " (" .. tostring(ret) .. ")")
+  end
+end
+local cmdrst
+cmdrst = function(...)
+  local fd, err = popen(cmdline(...))
+  if not (fd) then
+    error(err)
+  end
+  local data = fd:read('*a')
+  fd:close()
+  return data
+end
+local sh
+sh = function(cli)
+  local ok, ret, code = execute(cli)
+  if not (ok) then
+    return error("command '" .. tostring(cli) .. "' exited with " .. tostring(code) .. " (" .. tostring(ret) .. ")")
+  end
+end
+return {
+  cmd = cmd,
+  cmdrst = cmdrst,
+  sh = sh
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._cmd.posix" ] = function( ... ) local arg = _G.arg;
+local spawn
+spawn = require('posix').spawn
+local fork, execp, pipe, dup2, _exit, close
+do
+  local _obj_0 = require('posix.unistd')
+  fork, execp, pipe, dup2, _exit, close = _obj_0.fork, _obj_0.execp, _obj_0.pipe, _obj_0.dup2, _obj_0._exit, _obj_0.close
+end
+local fdopen
+fdopen = require('posix.stdio').fdopen
+local wait
+wait = require('posix.sys.wait').wait
+local flatten, first
+do
+  local _obj_0 = require('moonbuild._common')
+  flatten, first = _obj_0.flatten, _obj_0.first
+end
+local remove
+remove = table.remove
+local cmd
+cmd = function(...)
+  local code, ty = spawn(flatten(...))
+  if ty ~= 'exited' or code ~= 0 then
+    return error("command " .. tostring(first(...)) .. " " .. tostring(ty) .. " with code " .. tostring(code))
+  end
+end
+local cmdrst
+cmdrst = function(...)
+  local rd, wr = pipe()
+  local pid, err = fork()
+  if pid == 0 then
+    dup2(wr, 1)
+    close(rd)
+    local args = flatten(...)
+    local c = remove(args, 1)
+    execp(c, args)
+    return _exit(1)
+  end
+  if pid == nil then
+    close(rd)
+    close(wr)
+    error("command " .. tostring(first(...)) .. " failed to start: couldn't fork(): " .. tostring(err))
+  end
+  close(wr)
+  local fd = fdopen(rd, 'r')
+  local data = fd:read('*a')
+  fd:close()
+  close(rd)
+  local _, ty, code = wait(pid)
+  if ty ~= 'exited' or code ~= 0 then
+    error("command " .. tostring(first(...)) .. " " .. tostring(ty) .. " with code " .. tostring(code))
+  end
+  return data
+end
+local sh
+sh = function(cli)
+  return cmd('sh', '-c', cli)
+end
+return {
+  cmd = cmd,
+  cmdrst = cmdrst,
+  sh = sh
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._common" ] = function( ... ) local arg = _G.arg;
+local sort, concat
+do
+  local _obj_0 = table
+  sort, concat = _obj_0.sort, _obj_0.concat
+end
+local huge
+huge = math.huge
+local match, sub
+do
+  local _obj_0 = string
+  match, sub = _obj_0.match, _obj_0.sub
+end
+local common = { }
+local flatten
+flatten = function(list, ...)
+  if (select('#', ...)) ~= 0 then
+    return flatten({
+      list,
+      ...
+    })
+  end
+  local t = type(list)
+  local _exp_0 = t
+  if 'nil' == _exp_0 then
+    return { }
+  elseif 'string' == _exp_0 then
+    return {
+      list
+    }
+  elseif 'number' == _exp_0 then
+    return {
+      tostring(list)
+    }
+  elseif 'boolean' == _exp_0 then
+    return {
+      list
+    }
+  elseif 'table' == _exp_0 then
+    local keys
+    do
+      local _accum_0 = { }
+      local _len_0 = 1
+      for k in pairs(list) do
+        _accum_0[_len_0] = k
+        _len_0 = _len_0 + 1
+      end
+      keys = _accum_0
+    end
+    sort(keys)
+    local elements, i = { }, 1
+    for _index_0 = 1, #keys do
+      local k = keys[_index_0]
+      if (type(k)) == 'number' then
+        local _list_0 = (flatten(list[k]))
+        for _index_1 = 1, #_list_0 do
+          local e = _list_0[_index_1]
+          elements[i], i = e, i + 1
+        end
+      else
+        return {
+          list
+        }
+      end
+    end
+    return setmetatable(elements, {
+      __tostring = function(self)
+        return concat(self, ' ')
+      end
+    })
+  else
+    return error("can't flatten elements of type " .. tostring(t))
+  end
+end
+local first
+first = function(list, ...)
+  local t = type(list)
+  local _exp_0 = t
+  if 'nil' == _exp_0 then
+    if (select('#', ...)) == 0 then
+      return nil
+    else
+      return first(...)
+    end
+  elseif 'string' == _exp_0 then
+    return list
+  elseif 'number' == _exp_0 then
+    return tostring(list)
+  elseif 'boolean' == _exp_0 then
+    return list
+  elseif 'table' == _exp_0 then
+    local min = huge
+    for k in pairs(list) do
+      if (type(k)) == 'number' then
+        if k < min then
+          min = k
+        end
+      else
+        return list
+      end
+    end
+    return first(list[min])
+  else
+    return error("can't find first of type " .. tostring(t))
+  end
+end
+local foreach
+foreach = function(list, fn)
+  local _accum_0 = { }
+  local _len_0 = 1
+  local _list_0 = flatten(list)
+  for _index_0 = 1, #_list_0 do
+    local v = _list_0[_index_0]
+    _accum_0[_len_0] = fn(v)
+    _len_0 = _len_0 + 1
+  end
+  return _accum_0
+end
+local filter
+filter = function(list, fn)
+  local _accum_0 = { }
+  local _len_0 = 1
+  local _list_0 = flatten(list)
+  for _index_0 = 1, #_list_0 do
+    local v = _list_0[_index_0]
+    if fn(v) then
+      _accum_0[_len_0] = v
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local includes
+includes = function(list, v)
+  if list == v then
+    return true
+  end
+  if (type(list)) == 'table' then
+    for k, e in pairs(list) do
+      if (type(k)) == 'number' then
+        if includes(e, v) then
+          return true
+        end
+      end
+    end
+  end
+  if (type(list)) == 'number' then
+    return (tostring(list)) == (tostring(v))
+  end
+  return false
+end
+local patget
+patget = function(s, pat)
+  local prefix, suffix = match(pat, '^(.*)%%(.*)$')
+  if not (prefix) then
+    return s == pat and s or nil
+  end
+  if (sub(s, 1, #prefix)) == prefix and (suffix == '' or (sub(s, -#suffix)) == suffix) then
+    return sub(s, #prefix + 1, -#suffix - 1)
+  else
+    return nil
+  end
+end
+local patset
+patset = function(s, rep)
+  local prefix, suffix = match(rep, '^(.*)%%(.*)$')
+  if prefix then
+    return prefix .. s .. suffix
+  else
+    return rep
+  end
+end
+local patsubst
+patsubst = function(s, pat, rep)
+  local prefix, suffix = match(pat, '^(.*)%%(.*)$')
+  local rprefix, rsuffix = match(rep, '^(.*)%%(.*)$')
+  local t = type(s)
+  local f = false
+  if t == 'nil' then
+    return nil
+  end
+  if t == 'number' then
+    t = 'string'
+    s = tostring(s)
+  end
+  if t == 'string' then
+    t = 'table'
+    s = {
+      s
+    }
+    f = true
+  end
+  if t ~= 'table' then
+    error("can't substitute patterns on type " .. tostring(t))
+  end
+  local r, i = { }, 1
+  local _list_0 = flatten(s)
+  for _index_0 = 1, #_list_0 do
+    local s = _list_0[_index_0]
+    if not prefix then
+      if s == pat then
+        if rprefix then
+          r[i], i = rprefix .. s .. rsuffix, i + 1
+        else
+          r[i], i = rep, i + 1
+        end
+      end
+    elseif (sub(s, 1, #prefix)) == prefix and (suffix == '' or (sub(s, -#suffix)) == suffix) then
+      if rprefix then
+        r[i], i = rprefix .. (sub(s, #prefix + 1, -#suffix - 1)) .. rsuffix, i + 1
+      else
+        r[i], i = rep, i + 1
+      end
+    end
+  end
+  return f and r[1] or r
+end
+local exclude
+exclude = function(list, ...)
+  local exclusions = flatten(...)
+  local _accum_0 = { }
+  local _len_0 = 1
+  local _list_0 = flatten(list)
+  for _index_0 = 1, #_list_0 do
+    local v = _list_0[_index_0]
+    if not includes(exclusions, v) then
+      _accum_0[_len_0] = v
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local min
+min = function(list)
+  local m = list[1]
+  for i = 2, #list do
+    local e = list[i]
+    if e < m then
+      m = e
+    end
+  end
+  return m
+end
+local max
+max = function(list)
+  local m = list[1]
+  for i = 2, #list do
+    local e = list[i]
+    if e > m then
+      m = e
+    end
+  end
+  return m
+end
+local minmax
+minmax = function(list)
+  local m = list[1]
+  local M = list[1]
+  for i = 2, #list do
+    local e = list[i]
+    if e < m then
+      m = e
+    end
+    if e > M then
+      M = e
+    end
+  end
+  return m, M
+end
+common.flatten = flatten
+common.first = first
+common.foreach = foreach
+common.filter = filter
+common.includes = includes
+common.patget = patget
+common.patset = patset
+common.patsubst = patsubst
+common.exclude = exclude
+common.min = min
+common.max = max
+common.minmax = minmax
+return setmetatable(common, {
+  __call = function(self)
+    local _accum_0 = { }
+    local _len_0 = 1
+    for k in pairs(common) do
+      _accum_0[_len_0] = k
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end
+})
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._fs" ] = function( ... ) local arg = _G.arg;
+local remove, concat
+do
+  local _obj_0 = table
+  remove, concat = _obj_0.remove, _obj_0.concat
+end
+local gmatch, match, gsub, sub
+do
+  local _obj_0 = string
+  gmatch, match, gsub, sub = _obj_0.gmatch, _obj_0.match, _obj_0.gsub, _obj_0.sub
+end
+local ok, fs, backend = false, nil, nil
+if not (ok) then
+  ok, fs = pcall(function()
+    return require('moonbuild._fs.posix')
+  end)
+  backend = 'posix'
+end
+if not (ok) then
+  ok, fs = pcall(function()
+    return require('moonbuild._fs.lfs')
+  end)
+  backend = 'lfs'
+end
+if not (ok) then
+  ok, fs = pcall(function()
+    return require('moonbuild._fs.cmd')
+  end)
+  backend = 'cmd'
+end
+if not (ok) then
+  error("unable to load any fs library, tried luaposix, luafilesystem and posix commands")
+end
+local DISABLED = (function()
+  return DISABLED
+end)
+local NIL = (function()
+  return NIL
+end)
+local cacheenabled = true
+local caches = { }
+local clearcache
+clearcache = function()
+  for k, v in pairs(caches) do
+    v.clearcache()
+  end
+end
+local clearentry
+clearentry = function(entry)
+  for k, v in pairs(caches) do
+    v.clearentry(entry)
+  end
+end
+local disableentry
+disableentry = function(entry)
+  for k, v in pairs(caches) do
+    v.disableentry(entry)
+  end
+end
+local disablecache
+disablecache = function()
+  cacheenabled = false
+end
+local enablecache
+enablecache = function()
+  cacheenabled = true
+end
+local withcache
+withcache = function(fn)
+  local opts = { }
+  opts.cache = { }
+  opts.clearcache = function()
+    opts.cache = { }
+  end
+  opts.clearentry = function(entry)
+    opts.cache[entry] = nil
+  end
+  opts.disableentry = function(entry)
+    opts.cache[entry] = DISABLED
+  end
+  caches[fn] = opts
+  return setmetatable(opts, {
+    __call = function(self, arg)
+      if not (cacheenabled) then
+        return fn(arg)
+      end
+      local cached = opts.cache[arg]
+      if cached == DISABLED then
+        return fn(arg)
+      end
+      if cached == NIL then
+        return nil
+      end
+      if cached ~= nil then
+        return cached
+      end
+      cached = fn(arg)
+      opts.cache[arg] = cached
+      if cached == nil then
+        opts.cache[arg] = NIL
+      end
+      return cached
+    end
+  })
+end
+fs = {
+  dir = withcache(fs.dir),
+  attributes = withcache(fs.attributes),
+  mkdir = fs.mkdir
+}
+local attributes, dir, mkdir
+attributes, dir, mkdir = fs.attributes, fs.dir, fs.mkdir
+local normalizepath
+normalizepath = function(file)
+  local parts
+  do
+    local _accum_0 = { }
+    local _len_0 = 1
+    for part in gmatch(file, '[^/]+') do
+      _accum_0[_len_0] = part
+      _len_0 = _len_0 + 1
+    end
+    parts = _accum_0
+  end
+  local absolute = (sub(file, 1, 1)) == '/'
+  local i = 1
+  while i <= #parts do
+    local _continue_0 = false
+    repeat
+      if parts[i] == '.' then
+        remove(parts, i)
+        _continue_0 = true
+        break
+      end
+      if parts[i] == '..' and i ~= 1 and parts[i - 1] ~= '..' then
+        remove(parts, i)
+        remove(parts, i - 1)
+        i = i - 1
+        _continue_0 = true
+        break
+      end
+      i = i + 1
+      _continue_0 = true
+    until true
+    if not _continue_0 then
+      break
+    end
+  end
+  if #parts == 0 then
+    return absolute and '/' or '.'
+  else
+    return (absolute and '/' or '') .. concat(parts, '/')
+  end
+end
+local ls
+ls = function(d)
+  local _accum_0 = { }
+  local _len_0 = 1
+  local _list_0 = dir(normalizepath(d))
+  for _index_0 = 1, #_list_0 do
+    local f = _list_0[_index_0]
+    if f ~= '.' and f ~= '..' then
+      _accum_0[_len_0] = f
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local lswithpath
+lswithpath = function(d)
+  if d == '' then
+    return ls('.')
+  end
+  local _accum_0 = { }
+  local _len_0 = 1
+  local _list_0 = dir(normalizepath(d))
+  for _index_0 = 1, #_list_0 do
+    local f = _list_0[_index_0]
+    if f ~= '.' and f ~= '..' then
+      _accum_0[_len_0] = d .. '/' .. f
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local matchglob
+matchglob = function(str, glob)
+  glob = gsub(glob, '[%[%]%%+.?-]', function(self)
+    return '%' .. self
+  end)
+  local patt = '^' .. (gsub(glob, '%*%*?', function(self)
+    return self == '**' and '.*' or '[^/]*'
+  end)) .. '$'
+  local rst
+  if (type(str)) == 'table' then
+    local results, i = { }, 1
+    for _index_0 = 1, #str do
+      local s = str[_index_0]
+      rst = (match(s, patt)) and s
+      if rst then
+        results[i], i = rst, i + 1
+      end
+    end
+    rst = results
+  else
+    rst = (match(str, patt)) and str
+  end
+  return rst
+end
+local exists
+exists = function(f)
+  return (attributes(normalizepath(f))) ~= nil
+end
+local isdir
+isdir = function(f)
+  return ((attributes(normalizepath(f))) or { }).mode == 'directory'
+end
+local wildcard
+wildcard = function(glob)
+  local parts
+  do
+    local _accum_0 = { }
+    local _len_0 = 1
+    for part in gmatch(glob, '[^/]+') do
+      _accum_0[_len_0] = part
+      _len_0 = _len_0 + 1
+    end
+    parts = _accum_0
+  end
+  local absolute = (sub(glob, 1, 1)) == '/'
+  for i, part in ipairs(parts) do
+    local prevpath = (absolute and '/' or '') .. concat(parts, '/', 1, i - 1)
+    local currpath = (i == 1 and '' or (prevpath .. '/')) .. part
+    if match(part, '%*%*.*%*%*') then
+      error("Two '**' in the same path component in a wildcard")
+    end
+    if match(part, '%*%*') then
+      local prefix = match(currpath, '^(.*)%*%*')
+      local suffix = (match(part, '%*%*(.*)$')) .. (i == #parts and '' or ('/' .. concat(parts, '/', i + 1, #parts)))
+      if not (exists(prevpath)) then
+        return { }
+      end
+      local files = lswithpath(prevpath)
+      local results, ri = { }, 1
+      for _index_0 = 1, #files do
+        local file = files[_index_0]
+        if matchglob(file, currpath) then
+          if i == #parts then
+            results[ri], ri = file, ri + 1
+          elseif isdir(file) then
+            local _list_0 = wildcard(file .. '/' .. concat(parts, '/', i + 1, #parts))
+            for _index_1 = 1, #_list_0 do
+              local result = _list_0[_index_1]
+              results[ri], ri = result, ri + 1
+            end
+          end
+        end
+        if (matchglob(file, prefix .. '**')) and isdir(file) then
+          local _list_0 = wildcard(file .. '/**' .. suffix)
+          for _index_1 = 1, #_list_0 do
+            local result = _list_0[_index_1]
+            results[ri], ri = result, ri + 1
+          end
+        end
+      end
+      return results
+    end
+    if match(part, '%*') then
+      if not (exists(prevpath)) then
+        return { }
+      end
+      local files = lswithpath(prevpath)
+      if i == #parts then
+        return matchglob(files, glob)
+      end
+      local results, ri = { }, 1
+      for _index_0 = 1, #files do
+        local file = files[_index_0]
+        if (matchglob(file, currpath)) and isdir(file) then
+          local _list_0 = wildcard(file .. '/' .. concat(parts, '/', i + 1, #parts))
+          for _index_1 = 1, #_list_0 do
+            local result = _list_0[_index_1]
+            results[ri], ri = result, ri + 1
+          end
+        end
+      end
+      return results
+    end
+  end
+  if exists(glob) then
+    return {
+      glob
+    }
+  else
+    return { }
+  end
+end
+local parent
+parent = function(file)
+  return normalizepath(file .. '/..')
+end
+local actualmkdir = mkdir
+mkdir = function(dir)
+  actualmkdir(dir)
+  return clearentry(parent(dir))
+end
+local mkdirs
+mkdirs = function(dir)
+  if isdir(dir) then
+    return 
+  end
+  if exists(dir) then
+    error("Can't mkdirs " .. tostring(dir) .. ": file exists")
+  end
+  mkdirs(parent(dir))
+  return mkdir(dir)
+end
+do
+  local _tbl_0 = { }
+  for k, fn in pairs(fs) do
+    _tbl_0[k] = withcache(fn)
+  end
+  fs = _tbl_0
+end
+fs.normalizepath = normalizepath
+fs.ls = ls
+fs.lswithpath = lswithpath
+fs.matchglob = matchglob
+fs.exists = exists
+fs.isdir = isdir
+fs.wildcard = wildcard
+fs.parent = parent
+fs.mkdir = mkdir
+fs.mkdirs = mkdirs
+fs.clearcache = clearcache
+fs.clearentry = clearentry
+fs.disableentry = disableentry
+fs.disablecache = disablecache
+fs.enablecache = enablecache
+fs.backend = backend
+return setmetatable(fs, {
+  __call = function(self)
+    return {
+      'dir',
+      'ls',
+      'normalizepath',
+      'exists',
+      'isdir',
+      'wildcard',
+      'mkdir',
+      'mkdirs'
+    }
+  end
+})
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._fs.cmd" ] = function( ... ) local arg = _G.arg;
+local escape
+escape = require('moonbuild._cmd').escape
+local execute
+execute = require('moonbuild.compat.execute').execute
+local popen
+popen = io.popen
+local gmatch, match, sub
+do
+  local _obj_0 = string
+  gmatch, match, sub = _obj_0.gmatch, _obj_0.match, _obj_0.sub
+end
+if not ((execute("which ls >/dev/null 2>&1")) and (execute("which stat >/dev/null 2>&1"))) then
+  error("commands ls and stat aren't available")
+end
+return {
+  dir = function(path)
+    local _accum_0 = { }
+    local _len_0 = 1
+    for file in (popen("ls -1 " .. tostring(escape(path)))):lines() do
+      _accum_0[_len_0] = file
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end,
+  attributes = function(path)
+    local fd = popen("stat -c '%d %i %A %h %u %g %s %b %t %T %X %Y %Z' " .. tostring(escape(path)))
+    local stat
+    do
+      local _accum_0 = { }
+      local _len_0 = 1
+      for part in gmatch((fd:read('*a')), "%S+") do
+        _accum_0[_len_0] = part
+        _len_0 = _len_0 + 1
+      end
+      stat = _accum_0
+    end
+    fd:close()
+    fd = popen("stat -f -c '%S' " .. tostring(escape(path)))
+    local blksize = match((fd:read('*a')), '%S+')
+    fd:close()
+    return {
+      dev = tonumber(stat[1]),
+      ino = tonumber(stat[2]),
+      nlink = tonumber(stat[4]),
+      uid = tonumber(stat[5]),
+      gid = tonumber(stat[6]),
+      size = tonumber(stat[7]),
+      blocks = tonumber(stat[8]),
+      blksize = tonumber(blksize),
+      access = tonumber(stat[11]),
+      modification = tonumber(stat[12]),
+      change = tonumber(stat[13]),
+      permissions = (function()
+        return sub(stat[3], 2)
+      end)(),
+      mode = (function()
+        local _exp_0 = sub(stat[3], 1, 1)
+        if '-' == _exp_0 then
+          return 'file'
+        elseif 'd' == _exp_0 then
+          return 'directory'
+        elseif 'l' == _exp_0 then
+          return 'link'
+        elseif 's' == _exp_0 then
+          return 'socket'
+        elseif 'p' == _exp_0 then
+          return 'named pipe'
+        elseif 'c' == _exp_0 then
+          return 'char device'
+        elseif 'b' == _exp_0 then
+          return 'block device'
+        else
+          return 'other'
+        end
+      end)(),
+      rdev = (function()
+        return (tonumber(stat[9])) * 256 + (tonumber(stat[10]))
+      end)()
+    }
+  end,
+  mkdir = function(path)
+    if not (execute("mkdir " .. tostring(escape(path)))) then
+      return error("Mkdir " .. tostring(path) .. " failed")
+    end
+  end
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._fs.lfs" ] = function( ... ) local arg = _G.arg;
+local dir, attributes, mkdir
+do
+  local _obj_0 = require('lfs')
+  dir, attributes, mkdir = _obj_0.dir, _obj_0.attributes, _obj_0.mkdir
+end
+return {
+  dir = function(path)
+    local _accum_0 = { }
+    local _len_0 = 1
+    for v in dir(path) do
+      _accum_0[_len_0] = v
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end,
+  attributes = attributes,
+  mkdir = function(path)
+    local ok, err = mkdir(path)
+    if not (ok) then
+      return error("Failed to mkdir " .. tostring(path) .. ": " .. tostring(err))
+    end
+  end
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._fs.posix" ] = function( ... ) local arg = _G.arg;
+local dir
+dir = require('posix.dirent').dir
+local stat, mkdir, S_IFMT, S_IFBLK, S_IFCHR, S_IFDIR, S_IFIFO, S_IFLINK, S_IFREG, S_IFSOCK
+do
+  local _obj_0 = require('posix.sys.stat')
+  stat, mkdir, S_IFMT, S_IFBLK, S_IFCHR, S_IFDIR, S_IFIFO, S_IFLINK, S_IFREG, S_IFSOCK = _obj_0.stat, _obj_0.mkdir, _obj_0.S_IFMT, _obj_0.S_IFBLK, _obj_0.S_IFCHR, _obj_0.S_IFDIR, _obj_0.S_IFIFO, _obj_0.S_IFLINK, _obj_0.S_IFREG, _obj_0.S_IFSOCK
+end
+local band, btest
+do
+  local _obj_0 = require('moonbuild.compat.bit')
+  band, btest = _obj_0.band, _obj_0.btest
+end
+local concat
+concat = table.concat
+return {
+  dir = dir,
+  attributes = function(path)
+    local st = stat(path)
+    if not (st) then
+      return nil
+    end
+    local mode = st.st_mode
+    return {
+      mode = (function()
+        local ty = band(mode, S_IFMT)
+        local _exp_0 = ty
+        if S_IFREG == _exp_0 then
+          return 'file'
+        elseif S_IFDIR == _exp_0 then
+          return 'directory'
+        elseif S_IFLINK == _exp_0 then
+          return 'link'
+        elseif S_IFSOCK == _exp_0 then
+          return 'socket'
+        elseif S_IFIFO == _exp_0 then
+          return 'named pipe'
+        elseif S_IFCHR == _exp_0 then
+          return 'char device'
+        elseif S_IFBLK == _exp_0 then
+          return 'block device'
+        else
+          return 'other'
+        end
+      end)(),
+      permissions = (function()
+        local _suid = btest(mode, 2048)
+        local _sgid = btest(mode, 1024)
+        local _stic = btest(mode, 512)
+        local _ur = btest(mode, 256)
+        local _uw = btest(mode, 128)
+        local _ux = btest(mode, 64)
+        local _gr = btest(mode, 32)
+        local _gw = btest(mode, 16)
+        local _gx = btest(mode, 8)
+        local _or = btest(mode, 4)
+        local _ow = btest(mode, 2)
+        local _ox = btest(mode, 1)
+        return concat({
+          _ur and 'r' or '-',
+          _uw and 'w' or '-',
+          _suid and 's' or (_ux and 'x' or '-'),
+          _gr and 'r' or '-',
+          _gw and 'w' or '-',
+          _sgid and 's' or (_gx and 'x' or '-'),
+          _or and 'r' or '-',
+          _ow and 'w' or '-',
+          _stic and 't' or (_ox and 'x' or '-')
+        })
+      end)(),
+      dev = st.st_dev,
+      ino = st.st_ino,
+      nlink = st.st_nlink,
+      uid = st.st_uid,
+      gid = st.st_gid,
+      rdev = st.st_rdev,
+      access = st.st_atime,
+      modification = st.st_mtime,
+      change = st.st_ctime,
+      size = st.st_size,
+      blocks = st.st_blocks,
+      blksize = st.st_blksize
+    }
+  end,
+  mkdir = function(path)
+    local ok, err = mkdir(path)
+    if not (ok) then
+      return error("Failed to mkdir " .. tostring(path) .. ": " .. tostring(err))
+    end
+  end
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild._util" ] = function( ... ) local arg = _G.arg;
+local to_lua
+to_lua = require('moonscript.base').to_lua
+local parseargs, cmdrst
+do
+  local _obj_0 = require('moonbuild._cmd')
+  parseargs, cmdrst = _obj_0.parseargs, _obj_0.cmdrst
+end
+local gmatch, match, gsub
+do
+  local _obj_0 = string
+  gmatch, match, gsub = _obj_0.gmatch, _obj_0.match, _obj_0.gsub
+end
+local open
+open = io.open
+local util = { }
+local _pkgconfig
+_pkgconfig = function(mode, ...)
+  return parseargs(cmdrst('pkg-config', "--" .. tostring(mode), ...))
+end
+local pkgconfig = setmetatable({ }, {
+  __index = function(self, mode)
+    return function(...)
+      return _pkgconfig(mode, ...)
+    end
+  end
+})
+local _cdeps
+_cdeps = function(cc, cflags, path)
+  local raw = cmdrst(cc, cflags, '-M', path)
+  local rawlist = gsub((match(raw, ':(.+)')), '\\\n', ' ')
+  local _accum_0 = { }
+  local _len_0 = 1
+  for v in gmatch(rawlist, '%S+') do
+    _accum_0[_len_0] = v
+    _len_0 = _len_0 + 1
+  end
+  return _accum_0
+end
+local cdeps = setmetatable({ }, {
+  __index = function(self, cc)
+    return function(path, cflags)
+      return _cdeps(cc, cflags, path)
+    end
+  end,
+  __call = function(self, path, cflags)
+    return _cdeps('cc', cflags, path)
+  end
+})
+local readfile
+readfile = function(filename)
+  local fd, err = open(filename, 'rb')
+  if not (fd) then
+    error(err)
+  end
+  local data
+  data, err = fd:read('*a')
+  if not (data) then
+    error(err)
+  end
+  fd:close()
+  return data
+end
+local writefile
+writefile = function(filename, data)
+  local fd, err = open(filename, 'wb')
+  if not (fd) then
+    error(err)
+  end
+  local ok
+  ok, err = fd:write(data)
+  if not (ok) then
+    error(err)
+  end
+  fd:close()
+  return nil
+end
+local moonc
+moonc = function(infile, outfile)
+  local code, err = to_lua(readfile(infile))
+  if not (code) then
+    error("Failed to compile " .. tostring(self.infile) .. ": " .. tostring(err))
+  end
+  return writefile(outfile, code)
+end
+util.pkgconfig = pkgconfig
+util.cdeps = cdeps
+util.readfile = readfile
+util.writefile = writefile
+util.moonc = moonc
+return setmetatable(util, {
+  __call = function(self)
+    local _accum_0 = { }
+    local _len_0 = 1
+    for k in pairs(util) do
+      _accum_0[_len_0] = k
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end
+})
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.compat.bit" ] = function( ... ) local arg = _G.arg;
+local loadstring = loadstring or load
+local floor, ceil, pow
+do
+  local _obj_0 = math
+  floor, ceil, pow = _obj_0.floor, _obj_0.ceil, _obj_0.pow
+end
+local band = loadstring([[local a, b = ...; return a & b ]])
+local bor = loadstring([[local a, b = ...; return a | b ]])
+local bxor = loadstring([[local a, b = ...; return a ~ b ]])
+local bnot = loadstring([[local a    = ...; return ~a    ]])
+local shl = loadstring([[local a, b = ...; return a << b]])
+local shr = loadstring([[local a, b = ...; return a >> b]])
+if not (band) then
+  local _checkint
+  _checkint = function(n)
+    if n % 1 == 0 then
+      return n
+    else
+      return error("not an int")
+    end
+  end
+  local _shl
+  _shl = function(a, b)
+    return a * pow(2, b)
+  end
+  local _shr
+  _shr = function(a, b)
+    local v = a / pow(2, b)
+    if v < 0 then
+      return ceil(v)
+    else
+      return floor(v)
+    end
+  end
+  local _shr1
+  _shr1 = function(n)
+    n = n / 2
+    if n < 0 then
+      return ceil(v)
+    else
+      return floor(v)
+    end
+  end
+  local _band
+  _band = function(a, b)
+    local v = 0
+    local n = 1
+    for i = 0, 63 do
+      if a % 2 == 1 and b % 2 == 1 then
+        v = v + n
+      end
+      if i ~= 63 then
+        a = _shr1(a)
+        b = _shr1(b)
+        n = n * 2
+      end
+    end
+    return v
+  end
+  local _bor
+  _bor = function(a, b)
+    local v = 0
+    local n = 1
+    for i = 0, 63 do
+      if a % 2 == 1 or b % 2 == 1 then
+        v = v + n
+      end
+      if i ~= 63 then
+        a = _shr1(a)
+        b = _shr1(b)
+        n = n * 2
+      end
+    end
+    return v
+  end
+  local _bxor
+  _bxor = function(a, b)
+    local v = 0
+    local n = 1
+    for i = 0, 63 do
+      if a % 2 ~= b % 2 then
+        v = v + n
+      end
+      if i ~= 63 then
+        a = _shr1(a)
+        b = _shr1(b)
+        n = n * 2
+      end
+    end
+    return v
+  end
+  local _bnot
+  _bnot = function(a)
+    local v = 0
+    local n = 1
+    for i = 0, 63 do
+      if a % 2 == 0 then
+        v = v + n
+      end
+      if i ~= 63 then
+        a = _shr1(a)
+        n = n * 2
+      end
+    end
+    return v
+  end
+  band = function(a, b)
+    return _band((_checkint(a)), (_checkint(b)))
+  end
+  bor = function(a, b)
+    return _bor((_checkint(a)), (_checkint(b)))
+  end
+  bxor = function(a, b)
+    return _bxor((_checkint(a)), (_checkint(b)))
+  end
+  bnot = function(a)
+    return _bnot((_checkint(a)))
+  end
+  shl = function(a, b)
+    return _shl((_checkint(a)), (_checkint(b)))
+  end
+  shr = function(a, b)
+    return _shr((_checkint(a)), (_checkint(b)))
+  end
+end
+local btest
+btest = function(a, b)
+  return (band(a, b)) == b
+end
+return {
+  band = band,
+  bor = bor,
+  bxor = bxor,
+  bnot = bnot,
+  shl = shl,
+  shr = shr,
+  btest = btest
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.compat.ctx" ] = function( ... ) local arg = _G.arg;
+local pcall = require('moonbuild.compat.pcall')
+local runwithcontext
+if setfenv then
+  runwithcontext = function(fn, ctx, ...)
+    local env = getfenv(fn)
+    setfenv(fn, ctx)
+    local data, ndata, ok
+    local acc
+    acc = function(succ, ...)
+      ok = succ
+      if succ then
+        data = {
+          ...
+        }
+        ndata = select('#', ...)
+      else
+        data = ...
+      end
+    end
+    acc(pcall(fn, ...))
+    setfenv(fn, env)
+    if ok then
+      return unpack(data, 1, ndata)
+    else
+      return error(data)
+    end
+  end
+else
+  local dump
+  dump = string.dump
+  runwithcontext = function(fn, ctx, ...)
+    local code = dump(fn, false)
+    fn = load(code, 'runwithcontext', 'b', ctx)
+    return fn(...)
+  end
+end
+return {
+  runwithcontext = runwithcontext
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.compat.execute" ] = function( ... ) local arg = _G.arg;
+local execute
+execute = os.execute
+return {
+  execute = function(cmd)
+    local a, b, c = execute(cmd)
+    if (type(a)) == 'boolean' then
+      return a, b, c
+    else
+      return a == 0 or nil, 'exit', a
+    end
+  end
+}
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.compat.pcall" ] = function( ... ) local arg = _G.arg;
+local pcall = _G.pcall
+local unpack = _G.unpack or table.unpack
+local testfn
+testfn = function(a, b)
+  return a == b and a == 1 and true or error()
+end
+local testok, testrst = pcall(testfn, 1, 1)
+if not (testok and testrst) then
+  local realpcall = pcall
+  pcall = function(fn, ...)
+    local args = {
+      n = (select('#', ...)),
+      ...
+    }
+    return realpcall(function()
+      return fn(unpack(args, 1, args.n))
+    end)
+  end
+end
+return pcall
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.context" ] = function( ... ) local arg = _G.arg;
+local runwithcontext
+runwithcontext = require('moonbuild.compat.ctx').runwithcontext
+local topenv = require('moonbuild.env.top')
+local initenv = require('moonbuild.env.init')
+local includes
+includes = require('moonbuild._common').includes
+local insert
+insert = table.insert
+local Context
+do
+  local _class_0
+  local _base_0 = {
+    addvar = function(self, var)
+      self.variables[var.name] = var
+    end,
+    addinit = function(self, fn)
+      return insert(self.inits, fn)
+    end,
+    addtarget = function(self, target)
+      return insert(self.targets, target)
+    end,
+    resetexecuted = function(self)
+      self.executedtargets = { }
+    end,
+    adddefault = function(self, target)
+      if not (includes(self.targets, target)) then
+        error("not a target of the current context: " .. tostring(target))
+      end
+      if not ((type(target.name)) == 'string') then
+        error("not a named target")
+      end
+      return insert(self.defaulttargets, target.name)
+    end,
+    load = function(self, code, overrides)
+      return runwithcontext(code, (topenv(self, overrides)))
+    end,
+    init = function(self)
+      if self.inits[1] then
+        local env = (initenv(self))
+        local _list_0 = self.inits
+        for _index_0 = 1, #_list_0 do
+          local init = _list_0[_index_0]
+          runwithcontext(code, env)
+        end
+      end
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self)
+      self.targets = { }
+      self.defaulttargets = { }
+      self.variables = { }
+      self.inits = { }
+    end,
+    __base = _base_0,
+    __name = "Context"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  Context = _class_0
+  return _class_0
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.DAG" ] = function( ... ) local arg = _G.arg;
+local first, filter, foreach, flatten, patsubst, includes
+do
+  local _obj_0 = require('moonbuild._common')
+  first, filter, foreach, flatten, patsubst, includes = _obj_0.first, _obj_0.filter, _obj_0.foreach, _obj_0.flatten, _obj_0.patsubst, _obj_0.includes
+end
+local runwithcontext
+runwithcontext = require('moonbuild.compat.ctx').runwithcontext
+local globalenv = require('moonbuild.env.global')
+local exists, parent, mkdirs, clearentry, disableentry, attributes
+do
+  local _obj_0 = require('moonbuild._fs')
+  exists, parent, mkdirs, clearentry, disableentry, attributes = _obj_0.exists, _obj_0.parent, _obj_0.mkdirs, _obj_0.clearentry, _obj_0.disableentry, _obj_0.attributes
+end
+local sort, insert, remove
+do
+  local _obj_0 = table
+  sort, insert, remove = _obj_0.sort, _obj_0.insert, _obj_0.remove
+end
+local huge
+huge = math.huge
+local DepNode, FileTarget
+local nodepriority
+nodepriority = function(a, b)
+  local ta = type(a.name)
+  local tb = type(b.name)
+  local da = #a.deps
+  local db = #b.deps
+  local sa = a.sync
+  local sb = b.sync
+  if ta == 'string' and tb ~= 'string' then
+    return true
+  elseif ta ~= 'string' and tb == 'string' then
+    return false
+  elseif a.priority > b.priority then
+    return true
+  elseif a.priority < b.priority then
+    return false
+  elseif sa and not sb then
+    return false
+  elseif sb and not sa then
+    return true
+  else
+    return da < db
+  end
+end
+local transclosure
+transclosure = function(obj, prop)
+  local elems = { }
+  local i = 1
+  local set = { }
+  local imp
+  imp = function(e)
+    if not (e[prop]) then
+      return 
+    end
+    local _list_0 = e[prop]
+    for _index_0 = 1, #_list_0 do
+      local v = _list_0[_index_0]
+      if not set[v] then
+        elems[i], i = v, i + 1
+        set[v] = i
+        imp(v)
+      end
+    end
+  end
+  imp(obj)
+  return elems
+end
+local mtime
+mtime = function(path)
+  local attr = attributes(path)
+  return attr and attr.modification
+end
+local DepGraph
+do
+  local _class_0
+  local _base_0 = {
+    addnode = function(self, name)
+      if self.nodes[name] then
+        return 
+      end
+      local elected = self:resolvedeps(name)
+      self.nodes[name] = elected
+      local _list_0 = (transclosure(elected, 'deps'))
+      for _index_0 = 1, #_list_0 do
+        local dep = _list_0[_index_0]
+        self.nodes[dep.name] = dep
+        dep.deps = nil
+      end
+      elected.deps = nil
+    end,
+    resolvedeps = function(self, name)
+      do
+        local node = self.nodes[name]
+        if node then
+          return node, { }
+        end
+      end
+      local candidates = filter({
+        self.ctx.targets,
+        FileTarget()
+      }, function(target)
+        return target:matches(name)
+      end)
+      local nodes = foreach(candidates, function(candidate)
+        return {
+          a = {
+            pcall(function()
+              return DepNode(self, candidate, name)
+            end)
+          }
+        }
+      end)
+      local resolved = foreach((filter(nodes, function(node)
+        return node.a[1]
+      end)), function(node)
+        return node.a[2]
+      end)
+      sort(resolved, nodepriority)
+      return resolved[1] or error("Cannot resolve target " .. tostring(name) .. ": " .. tostring(#candidates) .. " candidates, " .. tostring(#resolved) .. " resolved")
+    end,
+    buildablenodes = function(self)
+      local _accum_0 = { }
+      local _len_0 = 1
+      for k, v in pairs(self.nodes) do
+        if v:canbuild() and not v.built then
+          _accum_0[_len_0] = v
+          _len_0 = _len_0 + 1
+        end
+      end
+      return _accum_0
+    end,
+    reset = function(self)
+      for k, n in pairs(self.nodes) do
+        n.built = false
+      end
+    end,
+    resetchildren = function(self, names)
+      local done = { }
+      local stack
+      do
+        local _accum_0 = { }
+        local _len_0 = 1
+        for _index_0 = 1, #names do
+          local v = names[_index_0]
+          _accum_0[_len_0] = v
+          _len_0 = _len_0 + 1
+        end
+        stack = _accum_0
+      end
+      while #stack ~= 0 do
+        local _continue_0 = false
+        repeat
+          local name = remove(stack)
+          if done[name] then
+            _continue_0 = true
+            break
+          end
+          done[name] = true
+          local node = self.nodes[name]
+          node.built = false
+          local _list_0 = (node:children())
+          for _index_0 = 1, #_list_0 do
+            local n = _list_0[_index_0]
+            insert(stack, n)
+          end
+          _continue_0 = true
+        until true
+        if not _continue_0 then
+          break
+        end
+      end
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, ctx, names)
+      if names == nil then
+        names = { }
+      end
+      self.ctx = ctx
+      self.nodes = { }
+      self.env = globalenv(self.ctx)
+      for _index_0 = 1, #names do
+        local name = names[_index_0]
+        self:addnode(name)
+      end
+    end,
+    __base = _base_0,
+    __name = "DepGraph"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  DepGraph = _class_0
+end
+do
+  local _class_0
+  local _base_0 = {
+    children = function(self)
+      local _accum_0 = { }
+      local _len_0 = 1
+      for k, n in pairs(self.dag.nodes) do
+        if (includes(n.ins, self.name)) or (includes(n.after, self.name)) then
+          _accum_0[_len_0] = k
+          _len_0 = _len_0 + 1
+        end
+      end
+      return _accum_0
+    end,
+    canbuild = function(self)
+      local _list_0 = flatten({
+        self.ins,
+        self.after
+      })
+      for _index_0 = 1, #_list_0 do
+        local node = _list_0[_index_0]
+        if not self.dag.nodes[node].built then
+          return false
+        end
+      end
+      local _list_1 = self.ins
+      for _index_0 = 1, #_list_1 do
+        local file = _list_1[_index_0]
+        if not exists(file) then
+          error("Node " .. tostring(self.name) .. " has ran all of its parents, but can't run since " .. tostring(file) .. " doesn't exist. Did you mean to use after instead of depends?")
+        end
+      end
+      return true
+    end,
+    build = function(self, opts)
+      if opts == nil then
+        opts = { }
+      end
+      local force = opts.force or false
+      local quiet = opts.quiet or false
+      if self.built or #self.buildfunctions == 0 then
+        return false
+      end
+      if not (force or self:shouldbuild()) then
+        return false
+      end
+      if not (quiet) then
+        print(tostring(self.type == 'virtual' and "Running" or "Building") .. " " .. tostring(self.name))
+      end
+      self:actuallybuild()
+      return true
+    end,
+    shouldbuild = function(self)
+      if #self.outs == 0 or #self.ins == 0 or self.type == 'virtual' then
+        return true
+      end
+      local minout = huge
+      local _list_0 = self.outs
+      for _index_0 = 1, #_list_0 do
+        local file = _list_0[_index_0]
+        local time = mtime(file)
+        if not time then
+          return true
+        end
+        if time < minout then
+          minout = time
+        end
+      end
+      local maxin = 0
+      local _list_1 = self.ins
+      for _index_0 = 1, #_list_1 do
+        local file = _list_1[_index_0]
+        local time = mtime(file)
+        if time > maxin then
+          maxin = time
+        end
+      end
+      return maxin > minout
+    end,
+    actuallybuild = function(self)
+      if self.mkdirs then
+        local _list_0 = self.outs
+        for _index_0 = 1, #_list_0 do
+          local file = _list_0[_index_0]
+          mkdirs(parent(file))
+        end
+      end
+      local _list_0 = self.outs
+      for _index_0 = 1, #_list_0 do
+        local file = _list_0[_index_0]
+        disableentry(file)
+      end
+      local ctx = setmetatable({ }, {
+        __index = function(_, k)
+          local _exp_0 = k
+          if 'infile' == _exp_0 then
+            return self.ins[1]
+          elseif 'infiles' == _exp_0 then
+            return self.ins
+          elseif 'outfile' == _exp_0 then
+            return self.outs[1]
+          elseif 'outfiles' == _exp_0 then
+            return self.outs
+          elseif 'name' == _exp_0 then
+            return self.name
+          else
+            return error("No such field in TargetContext: " .. tostring(k))
+          end
+        end,
+        __newindex = function(self, k)
+          return error("Attempt to set field " .. tostring(k) .. " of TargetContext")
+        end
+      })
+      local _list_1 = self.buildfunctions
+      for _index_0 = 1, #_list_1 do
+        local fn = _list_1[_index_0]
+        runwithcontext(fn, self.dag.env, ctx)
+      end
+    end,
+    updatecache = function(self)
+      local _list_0 = self.outs
+      for _index_0 = 1, #_list_0 do
+        local file = _list_0[_index_0]
+        clearentry(file)
+      end
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, dag, target, name)
+      self.dag, self.name = dag, name
+      self.priority = target.priority
+      self.buildfunctions = target.buildfunctions
+      self.mkdirs = target._mkdirs
+      self.sync = target._sync
+      self.type = target._type
+      self.outs = foreach(target.outfiles, function(name)
+        return patsubst(self.name, target.pattern, name)
+      end)
+      if #self.outs == 0 then
+        self.type = 'virtual'
+      end
+      self.built = false
+      local resolve
+      resolve = function(name)
+        return self.dag:resolvedeps(patsubst(self.name, target.pattern, name))
+      end
+      local after = flatten(foreach(target.needtargets, resolve))
+      local deps = flatten(foreach(target.infiles, resolve))
+      if #target.depfunctions ~= 0 then
+        local ctx = setmetatable({ }, {
+          __index = function(_, k)
+            local _exp_0 = k
+            if 'infile' == _exp_0 then
+              local f = first(deps)
+              return f and f.name
+            elseif 'infiles' == _exp_0 then
+              return foreach(deps, function(self)
+                return self.name
+              end)
+            elseif 'outfile' == _exp_0 then
+              local f = first(self.outs)
+              return f and f.name
+            elseif 'outfiles' == _exp_0 then
+              return foreach(self.outs, function(self)
+                return self.name
+              end)
+            elseif 'name' == _exp_0 then
+              return self.name
+            else
+              return error("No such field in TargetDepsContext: " .. tostring(k))
+            end
+          end,
+          __newindex = function(self, k)
+            return error("Attempt to set field " .. tostring(k) .. " of TargetDepsContext")
+          end
+        })
+        local _list_0 = target.depfunctions
+        for _index_0 = 1, #_list_0 do
+          local depfn = _list_0[_index_0]
+          deps = flatten(deps, foreach((runwithcontext(depfn, self.dag.env, ctx)), resolve))
+        end
+      end
+      self.ins = foreach(deps, function(dep)
+        return dep.name
+      end)
+      self.after = foreach(after, function(dep)
+        return dep.name
+      end)
+      self.deps = flatten({
+        deps,
+        after
+      })
+      if #self.deps == 0 and #self.buildfunctions == 0 then
+        self.built = true
+      end
+    end,
+    __base = _base_0,
+    __name = "DepNode"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  DepNode = _class_0
+end
+do
+  local _class_0
+  local _base_0 = {
+    matches = function(self, name)
+      return exists(name)
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self)
+      self.priority = -huge
+      self.buildfunctions = { }
+      self._mkdirs = false
+      self._sync = false
+      self._type = 'file'
+      self.needtargets = { }
+      self.infiles = { }
+      self.depfunctions = { }
+      self.outfiles = {
+        '%'
+      }
+      self.pattern = '%'
+    end,
+    __base = _base_0,
+    __name = "FileTarget"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  FileTarget = _class_0
+end
+return DepGraph
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.Target" ] = function( ... ) local arg = _G.arg;
+local flatten, includes, patget
+do
+  local _obj_0 = require('moonbuild._common')
+  flatten, includes, patget = _obj_0.flatten, _obj_0.includes, _obj_0.patget
+end
+local insert
+insert = table.insert
+local Target
+do
+  local _class_0
+  local _base_0 = {
+    matches = function(self, name)
+      if self.name == name then
+        return true
+      end
+      if (includes(self.name, name)) and patget(name, self.pattern) then
+        return true
+      end
+      return false
+    end,
+    produces = function(self, ...)
+      local n = #self.outfiles + 1
+      local _list_0 = flatten(...)
+      for _index_0 = 1, #_list_0 do
+        local obj = _list_0[_index_0]
+        self.outfiles[n], n = obj, n + 1
+      end
+    end,
+    depends = function(self, ...)
+      if (type(...)) == 'function' then
+        return insert(self.depfunctions, (...))
+      else
+        local n = #self.infiles + 1
+        local _list_0 = flatten(...)
+        for _index_0 = 1, #_list_0 do
+          local obj = _list_0[_index_0]
+          self.infiles[n], n = obj, n + 1
+        end
+      end
+    end,
+    after = function(self, ...)
+      local n = #self.needtargets + 1
+      local _list_0 = flatten(...)
+      for _index_0 = 1, #_list_0 do
+        local tgt = _list_0[_index_0]
+        self.needtargets[n], n = tgt, n + 1
+      end
+    end,
+    fn = function(self, fn)
+      return insert(self.buildfunctions, fn)
+    end,
+    sync = function(self)
+      self._sync = true
+    end,
+    mkdirs = function(self)
+      self._mkdirs = true
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, ctx, name, opts)
+      if opts == nil then
+        opts = { }
+      end
+      self.ctx, self.name = ctx, name
+      if (type(self.name)) ~= 'string' then
+        self.name = flatten(self.name)
+      end
+      self.pattern = opts.pattern or ((type(self.name)) == 'string' and self.name or '%')
+      self.priority = opts.priority or 0
+      if not ((type(self.pattern)) == 'string') then
+        error("pattern must be a string")
+      end
+      if not ((type(self.priority)) == 'number' and self.priority % 1 == 0) then
+        error("priority must be an int")
+      end
+      self.outfiles = { }
+      self.infiles = { }
+      self.needtargets = { }
+      self.depfunctions = { }
+      self.buildfunctions = { }
+      self._mkdirs = false
+      self._sync = false
+      self._type = 'normal'
+      self.public = false
+    end,
+    __base = _base_0,
+    __name = "Target"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  Target = _class_0
+  return _class_0
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.Variable" ] = function( ... ) local arg = _G.arg;
+local flatten
+flatten = require('moonbuild._common').flatten
+local Variable
+do
+  local _class_0
+  local _base_0 = { }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, name, ...)
+      self.name = name
+      self.public = false
+      if (select('#', ...)) ~= 1 or (type(...)) == 'table' then
+        self.value = flatten(...)
+      else
+        self.value = ...
+      end
+    end,
+    __base = _base_0,
+    __name = "Variable"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  local self = _class_0
+  self.NIL = function() end
+  Variable = _class_0
+  return _class_0
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.executor" ] = function( ... ) local arg = _G.arg;
+local ok, MultiProcessExecutor = pcall(function()
+  return require('moonbuild.core.multiprocessexecutor')
+end)
+return ok and MultiProcessExecutor or require('moonbuild.core.singleprocessexecutor')
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.multiprocessexecutor" ] = function( ... ) local arg = _G.arg;
+local SingleProcessExecutor = require('moonbuild.core.singleprocessexecutor')
+local fork, _exit
+do
+  local _obj_0 = require('posix.unistd')
+  fork, _exit = _obj_0.fork, _obj_0._exit
+end
+local wait
+wait = require('posix.sys.wait').wait
+local open, stderr
+do
+  local _obj_0 = io
+  open, stderr = _obj_0.open, _obj_0.stderr
+end
+local match
+match = string.match
+local Executor
+do
+  local _class_0
+  local _base_0 = {
+    execute = function(self, opts)
+      if self.nparallel == 1 then
+        return (SingleProcessExecutor(self.dag, 1)):execute(opts)
+      end
+      local block = self.dag:buildablenodes()
+      while #block ~= 0 do
+        for _index_0 = 1, #block do
+          local node = block[_index_0]
+          self:addprocess(node, opts)
+          if self.nprocesses == self.nparallel then
+            self:waitprocess()
+          end
+        end
+        do
+          local _accum_0 = { }
+          local _len_0 = 1
+          local _list_0 = self.dag:buildablenodes()
+          for _index_0 = 1, #_list_0 do
+            local node = _list_0[_index_0]
+            if not self.building[node] then
+              _accum_0[_len_0] = node
+              _len_0 = _len_0 + 1
+            end
+          end
+          block = _accum_0
+        end
+        while #block == 0 and self.nprocesses ~= 0 do
+          self:waitprocess()
+          do
+            local _accum_0 = { }
+            local _len_0 = 1
+            local _list_0 = self.dag:buildablenodes()
+            for _index_0 = 1, #_list_0 do
+              local node = _list_0[_index_0]
+              if not self.building[node] then
+                _accum_0[_len_0] = node
+                _len_0 = _len_0 + 1
+              end
+            end
+            block = _accum_0
+          end
+        end
+      end
+      while self.nprocesses ~= 0 do
+        self:waitprocess()
+      end
+      for name, node in pairs(self.dag.nodes) do
+        if not (node.built) then
+          error("Node " .. tostring(name) .. " wasn't built")
+        end
+      end
+      if not (opts.quiet) then
+        if self.nbuilt == 0 then
+          return print("Nothing to be done")
+        else
+          return print("Built " .. tostring(self.nbuilt) .. " targets")
+        end
+      end
+    end,
+    addprocess = function(self, node, opts)
+      if node.sync then
+        while self.nprocesses ~= 0 do
+          self:waitprocess()
+        end
+        node:build(opts)
+        node.built = true
+        node:updatecache()
+        return 
+      end
+      local pid = fork()
+      if not (pid) then
+        error("Failed to fork")
+      end
+      if pid ~= 0 then
+        self.processes[pid] = node
+        self.nprocesses = self.nprocesses + 1
+        self.building[node] = true
+      else
+        local ok, status = pcall(function()
+          return node:build(opts)
+        end)
+        if ok then
+          _exit(status and 0 or 2)
+          return _exit(0)
+        else
+          stderr:write(status)
+          return _exit(1)
+        end
+      end
+    end,
+    waitprocess = function(self)
+      local pid, ty, status = wait()
+      if not (pid) then
+        error("Failed to wait")
+      end
+      if ty ~= 'exited' or status ~= 0 and status ~= 2 then
+        error("Failed to build " .. tostring(self.processes[pid].name))
+      end
+      self.processes[pid].built = true
+      self.processes[pid]:updatecache()
+      self.processes[pid] = nil
+      self.nprocesses = self.nprocesses - 1
+      if status == 0 then
+        self.nbuilt = self.nbuilt + 1
+      end
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, dag, nparallel)
+      self.dag, self.nparallel = dag, nparallel
+      self.processes = { }
+      self.nprocesses = 0
+      self.building = { }
+      self.nbuilt = 0
+    end,
+    __base = _base_0,
+    __name = "Executor"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  local self = _class_0
+  self.getmaxparallel = function(self)
+    local fd = open('/proc/cpuinfo', 'r')
+    if not (fd) then
+      return 1
+    end
+    local ncpu = 0
+    for line in fd:lines() do
+      if match(line, '^processor%s*:') then
+        ncpu = ncpu + 1
+      end
+    end
+    fd:close()
+    return ncpu == 0 and 1 or ncpu
+  end
+  Executor = _class_0
+  return _class_0
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.core.singleprocessexecutor" ] = function( ... ) local arg = _G.arg;
+local Executor
+do
+  local _class_0
+  local _base_0 = {
+    execute = function(self, opts)
+      local nbuilt = 0
+      local block = self.dag:buildablenodes()
+      while #block ~= 0 do
+        for _index_0 = 1, #block do
+          local node = block[_index_0]
+          if node:build(opts) then
+            nbuilt = nbuilt + 1
+          end
+          node:updatecache()
+          node.built = true
+        end
+        block = self.dag:buildablenodes()
+      end
+      for name, node in pairs(self.dag.nodes) do
+        if not (node.built) then
+          error("Node " .. tostring(name) .. " wasn't built")
+        end
+      end
+      if not (opts.quiet) then
+        if nbuilt == 0 then
+          return print("Nothing to be done")
+        else
+          return print("Built " .. tostring(nbuilt) .. " targets")
+        end
+      end
+    end
+  }
+  _base_0.__index = _base_0
+  _class_0 = setmetatable({
+    __init = function(self, dag, nparallel)
+      self.dag, self.nparallel = dag, nparallel
+    end,
+    __base = _base_0,
+    __name = "Executor"
+  }, {
+    __index = _base_0,
+    __call = function(cls, ...)
+      local _self_0 = setmetatable({}, _base_0)
+      cls.__init(_self_0, ...)
+      return _self_0
+    end
+  })
+  _base_0.__class = _class_0
+  local self = _class_0
+  self.getmaxparallel = function(self)
+    return 1
+  end
+  Executor = _class_0
+  return _class_0
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.env.global" ] = function( ... ) local arg = _G.arg;
+local _ = require('moonbuild._')
+return function(ctx)
+  local varlayer = setmetatable({ }, {
+    __index = _G
+  })
+  for name, var in pairs(ctx.variables) do
+    rawset(varlayer, name, var.value)
+  end
+  local env = setmetatable({ }, {
+    __index = varlayer,
+    __newindex = function(self, k)
+      return error("attempt to assign to global variable '" .. tostring(k) .. "', which is disabled in the global env")
+    end
+  })
+  rawset(env, '_', _)
+  rawset(env, '_G', env)
+  rawset(env, '_ENV', env)
+  return env, varlayer
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.env.init" ] = function( ... ) local arg = _G.arg;
+local Target = require('moonbuild.core.Target')
+local Variable = require('moonbuild.core.Variable')
+local _ = require('moonbuild._')
+local flatten
+flatten = _.flatten
+return function(ctx)
+  local varlayer = setmetatable({ }, {
+    __index = _G
+  })
+  for name, var in pairs(ctx.variables) do
+    rawset(varlayer, name, var.value)
+  end
+  local env = setmetatable({ }, {
+    __index = varlayer,
+    __newindex = function(self, k)
+      return error("attempt to assign to global variable '" .. tostring(k) .. "', use the function 'var' instead")
+    end
+  })
+  rawset(env, '_', _)
+  rawset(env, '_G', env)
+  rawset(env, '_ENV', env)
+  rawset(env, 'var', function(name, ...)
+    local var = Variable(name, ...)
+    ctx:addvar(var)
+    rawset(varlayer, name, var.value)
+    return var
+  end)
+  rawset(env, 'target', function(name, opts)
+    local target = Target(ctx, name, opts)
+    ctx:addtarget(target)
+    return target
+  end)
+  return env, varlayer
+end
+end
+end
+
+do
+local _ENV = _ENV
+package.preload[ "moonbuild.env.top" ] = function( ... ) local arg = _G.arg;
+local initenv = require('moonbuild.env.init')
+local Target = require('moonbuild.core.Target')
+local Variable = require('moonbuild.core.Variable')
+return function(ctx, overrides)
+  local env, varlayer = initenv(ctx)
+  rawset(env, 'default', function(target)
+    ctx:adddefault(target)
+    return target
+  end)
+  rawset(env, 'public', function(e)
+    local clazz = ((getmetatable(e)) or { }).__class
+    if clazz == Target then
+      e.public = true
+    elseif clazz == Variable then
+      e.public = true
+      local override = overrides[e.name]
+      if override then
+        if override == Variable.NIL then
+          override = nil
+        end
+        e.value = override
+        rawset(varlayer, e.name, override)
+      end
+    else
+      error("cannot set an object of type " .. tostring(clazz and clazz.__name or type(e)) .. " public")
+    end
+    return e
+  end)
+  rawset(env, 'init', function(fn)
+    if not ((type(fn)) == 'function') then
+      error("you can only add functions to init")
+    end
+    return ctx:addinit(fn)
+  end)
+  return env, varlayer
+end
+end
+end
+
+end
+
+local loadfile
+loadfile = require('moonscript.base').loadfile
+local Context = require('moonbuild.context')
+local DepGraph = require('moonbuild.core.DAG')
+local Executor = require('moonbuild.core.executor')
+local _ = require('moonbuild._')
+local insert
+insert = table.insert
+local moonbuild
+moonbuild = function(...)
+  local opts = { }
+  for i = 1, select('#', ...) do
+    local arg = select(i, ...)
+    if (type(arg)) == 'string' then
+      insert(opts, arg)
+    elseif (type(arg)) == 'table' then
+      for k, v in pairs(arg) do
+        if (type(k)) ~= 'number' then
+          opts[k] = v
+        end
+      end
+      for i, v in ipairs(arg) do
+        insert(opts, v)
+      end
+    else
+      error("Invalid argument type " .. tostring(type(arg)) .. " for moonbuild")
+    end
+  end
+  local buildfile = opts.buildfile or opts.b or 'Build.moon'
+  opts.buildfile = buildfile
+  local parallel = opts.parallel or opts.j or 1
+  if parallel == 'y' then
+    parallel = true
+  end
+  opts.parallel = parallel
+  local quiet = opts.quiet or opts.q or false
+  opts.quiet = quiet
+  local force = opts.force or opts.f or false
+  opts.force = force
+  local verbose = opts.verbose or opts.v or false
+  opts.verbose = verbose
+  local ctx = Context()
+  ctx:load((loadfile(buildfile)), opts)
+  if verbose then
+    print("Loaded buildfile")
+  end
+  ctx:init()
+  if verbose then
+    print("Initialized buildfile")
+  end
+  local targets = #opts == 0 and ctx.defaulttargets or opts
+  local dag = DepGraph(ctx, targets)
+  if verbose then
+    print("Created dependancy graph")
+  end
+  local nparallel = parallel == true and Executor:getmaxparallel() or parallel
+  if verbose then
+    print("Building with " .. tostring(nparallel) .. " max parallel process" .. tostring(nparallel > 1 and "es" or ""))
+  end
+  local executor = Executor(dag, nparallel)
+  executor:execute(opts)
+  if verbose then
+    return print("Finished")
+  end
+end
+local table = {
+  moonbuild = moonbuild,
+  _ = _,
+  Context = Context,
+  DepGraph = DepGraph,
+  Executor = Executor
+}
+return setmetatable(table, {
+  __call = function(self, ...)
+    return moonbuild(...)
+  end,
+  __index = function(self, name)
+    return require("moonbuild." .. tostring(name))
+  end
+})
\ No newline at end of file