diff --git a/.gitignore b/.gitignore
index ac66fe4..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +0,0 @@
-/*.lua
-/*.lua.c
-/moonbuild
diff --git a/moonbuild/fsutil.lua b/moonbuild/fsutil.lua
new file mode 100644
index 0000000..f4de9ba
--- /dev/null
+++ b/moonbuild/fsutil.lua
@@ -0,0 +1,155 @@
+local dir, attributes
+do
+  local _obj_0 = require('lfs')
+  dir, attributes = _obj_0.dir, _obj_0.attributes
+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 insert, concat
+do
+  local _obj_0 = table
+  insert, concat = _obj_0.insert, _obj_0.concat
+end
+local ls
+ls = function(d)
+  local _accum_0 = { }
+  local _len_0 = 1
+  for f in dir(d) do
+    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
+  for f in dir(d) do
+    if f ~= '.' and f ~= '..' then
+      _accum_0[_len_0] = d .. '/' .. f
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local exists
+exists = function(f)
+  return (attributes(f)) ~= nil
+end
+local isdir
+isdir = function(f)
+  local a = attributes(f)
+  return a and a.mode == 'directory' or false
+end
+local mtime
+mtime = function(f)
+  local a = attributes(f)
+  return a and a.modification
+end
+local matchglob
+matchglob = function(str, glob)
+  local patt = '^' .. (gsub((gsub(glob, '%*%*', '.*')), '%*', '[^/]*')) .. '$'
+  local rst
+  if (type(str)) == 'table' then
+    local results, i = { }, 1
+    for _index_0 = 1, #str do
+      local s = str[_index_0]
+      rst = (match(s, patt)) and s
+      if rst then
+        results[i], i = rst, i + 1
+      end
+    end
+    rst = results
+  else
+    rst = (match(str, patt)) and str
+  end
+  return rst
+end
+local wildcard
+wildcard = function(glob)
+  local parts
+  do
+    local _accum_0 = { }
+    local _len_0 = 1
+    for part in gmatch(glob, '[^/]+') do
+      _accum_0[_len_0] = part
+      _len_0 = _len_0 + 1
+    end
+    parts = _accum_0
+  end
+  local absolute = (sub(glob, 1, 1)) == '/'
+  for i, part in ipairs(parts) do
+    local prevpath = (absolute and '/' or '') .. concat(parts, '/', 1, i - 1)
+    local currpath = prevpath .. '/' .. part
+    if match(part, '%*%*.*%*%*') then
+      error("Two '**' in the same path component in a wildcard")
+    end
+    if match(part, '%*%*') then
+      local prefix = match(currpath, '^(.*)%*%*')
+      local suffix = (match(part, '%*%*(.*)$')) .. (i == #parts and '' or ('/' .. concat(parts, '/', i + 1, #parts)))
+      local files = lswithpath(prevpath)
+      local results = { }
+      for _index_0 = 1, #files do
+        local file = files[_index_0]
+        if matchglob(file, currpath) then
+          if i == #parts then
+            insert(results, file)
+          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]
+              insert(results, result)
+            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]
+            insert(results, result)
+          end
+        end
+      end
+      return results
+    end
+    if match(part, '%*') then
+      local files = lswithpath(prevpath)
+      if i == #parts then
+        return matchglob(files, glob)
+      end
+      local results = { }
+      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]
+            insert(results, result)
+          end
+        end
+      end
+      return results
+    end
+  end
+  if exists(glob) then
+    return {
+      glob
+    }
+  else
+    return { }
+  end
+end
+return {
+  wildcard = wildcard,
+  exists = exists,
+  isdir = isdir,
+  mtime = mtime
+}
diff --git a/moonbuild/fsutil.moon b/moonbuild/fsutil.moon
new file mode 100644
index 0000000..de42388
--- /dev/null
+++ b/moonbuild/fsutil.moon
@@ -0,0 +1,88 @@
+import dir, attributes from require 'lfs'
+
+import gmatch, match, gsub, sub from string
+import insert, concat from table
+
+ls = (d) ->
+	[f for f in dir d when f!='.' and f!='..']
+
+lswithpath = (d) ->
+	if d==''
+		return ls '.'
+	[d..'/'..f for f in dir d when f!='.' and f!='..']
+
+exists = (f) ->
+	(attributes f) != nil
+
+isdir = (f) ->
+	a = attributes f
+	a and a.mode == 'directory' or false
+
+mtime = (f) ->
+	a = attributes f
+	a and a.modification
+
+matchglob = (str, glob) ->
+	patt = '^'..(gsub (gsub glob, '%*%*', '.*'), '%*', '[^/]*')..'$'
+	rst = if (type str)=='table'
+		results, i = {}, 1
+		for s in *str
+			rst = (match s, patt) and s
+			results[i], i = rst, i+1 if rst
+		results
+	else
+		(match str, patt) and str
+	rst
+
+wildcard = (glob) ->
+	parts = [part for part in gmatch glob, '[^/]+']
+	absolute = (sub glob, 1, 1)=='/'
+
+	for i, part in ipairs parts
+		prevpath = (absolute and '/' or '') .. concat parts, '/', 1, i-1
+		currpath = prevpath .. '/' .. part
+
+		if match part, '%*%*.*%*%*'
+			error "Two '**' in the same path component in a wildcard"
+
+		if match part, '%*%*'
+			prefix = match currpath, '^(.*)%*%*'
+			suffix = (match part, '%*%*(.*)$') .. (i==#parts and '' or ('/'..concat parts, '/', i+1, #parts))
+			files = lswithpath prevpath
+
+			results = {}
+			for file in *files
+				if matchglob file, currpath
+					if i==#parts
+						insert results, file
+					elseif isdir file
+						for result in *wildcard file .. '/' .. concat parts, '/', i+1, #parts
+							insert results, result
+				if (matchglob file, prefix..'**') and isdir file
+					for result in *wildcard file .. '/**' .. suffix
+						insert results, result
+			return results
+
+		if match part, '%*'
+			files = lswithpath prevpath
+
+			if i==#parts
+				return matchglob files, glob
+
+			results = {}
+			for file in *files
+				if (matchglob file, currpath) and isdir file
+					for result in *wildcard file .. '/' .. concat parts, '/', i+1, #parts
+						insert results, result
+			return results
+
+	if exists glob
+		return {glob}
+	else
+		return {}
+
+{
+	:wildcard
+	:exists, :isdir
+	:mtime
+}
diff --git a/moonbuild/stringutil.lua b/moonbuild/stringutil.lua
new file mode 100644
index 0000000..d5b4e35
--- /dev/null
+++ b/moonbuild/stringutil.lua
@@ -0,0 +1,52 @@
+local match, gmatch, sub
+do
+  local _obj_0 = string
+  match, gmatch, sub = _obj_0.match, _obj_0.gmatch, _obj_0.sub
+end
+local upper, lower
+do
+  local _obj_0 = string
+  upper, lower = _obj_0.upper, _obj_0.lower
+end
+local GLOB_PATT = '^([^%%]*)%%([^%%]*)$'
+local patsubst
+patsubst = function(str, pattern, replacement)
+  if (type(str)) == 'table' then
+    local _accum_0 = { }
+    local _len_0 = 1
+    for _index_0 = 1, #str do
+      local s = str[_index_0]
+      _accum_0[_len_0] = patsubst(s, pattern, replacement)
+      _len_0 = _len_0 + 1
+    end
+    return _accum_0
+  end
+  local prefix, suffix = match(pattern, GLOB_PATT)
+  if not (prefix) then
+    return str
+  end
+  local reprefix, resuffix = match(replacement, GLOB_PATT)
+  if not (reprefix) then
+    return replacement
+  end
+  if (sub(str, 1, #prefix)) == prefix and (sub(str, -#suffix)) == suffix then
+    return reprefix .. (sub(str, #prefix + 1, -#suffix - 1)) .. resuffix
+  end
+  return str
+end
+local splitsp
+splitsp = function(str)
+  local _accum_0 = { }
+  local _len_0 = 1
+  for elem in gmatch(str, '%S+') do
+    _accum_0[_len_0] = elem
+    _len_0 = _len_0 + 1
+  end
+  return _accum_0
+end
+return {
+  patsubst = patsubst,
+  splitsp = splitsp,
+  upper = upper,
+  lower = lower
+}
diff --git a/moonbuild/stringutil.moon b/moonbuild/stringutil.moon
new file mode 100644
index 0000000..91aeab8
--- /dev/null
+++ b/moonbuild/stringutil.moon
@@ -0,0 +1,25 @@
+import match, gmatch, sub from string
+import upper, lower from string
+
+GLOB_PATT='^([^%%]*)%%([^%%]*)$'
+
+patsubst = (str, pattern, replacement) ->
+	return [patsubst s, pattern, replacement for s in *str] if (type str)=='table'
+	prefix, suffix = match pattern, GLOB_PATT
+	return str unless prefix
+	reprefix, resuffix = match replacement, GLOB_PATT
+	return replacement unless reprefix
+
+	if (sub str, 1, #prefix)==prefix and (sub str, -#suffix)==suffix
+		return reprefix..(sub str, #prefix+1, -#suffix-1)..resuffix
+	str
+
+splitsp = (str) ->
+	[elem for elem in gmatch str, '%S+']
+
+{
+	:patsubst
+	:splitsp
+
+	:upper, :lower
+}
diff --git a/moonbuild/tableutil.lua b/moonbuild/tableutil.lua
new file mode 100644
index 0000000..ea771e6
--- /dev/null
+++ b/moonbuild/tableutil.lua
@@ -0,0 +1,132 @@
+local insert, remove, concat, sort
+do
+  local _obj_0 = table
+  insert, remove, concat, sort = _obj_0.insert, _obj_0.remove, _obj_0.concat, _obj_0.sort
+end
+local unpack = unpack or table.unpack
+local sortedpairs
+sortedpairs = function(table, cmp)
+  local keys
+  do
+    local _accum_0 = { }
+    local _len_0 = 1
+    for k in pairs(table) do
+      _accum_0[_len_0] = k
+      _len_0 = _len_0 + 1
+    end
+    keys = _accum_0
+  end
+  sort(keys, cmp)
+  return coroutine.wrap(function()
+    for _index_0 = 1, #keys do
+      local key = keys[_index_0]
+      coroutine.yield(key, table[key])
+    end
+  end)
+end
+local min
+min = function(table, cmp)
+  if cmp == nil then
+    cmp = function(a, b)
+      return a < b
+    end
+  end
+  local val = table[1]
+  for i = 2, #table do
+    local elem = table[i]
+    if cmp(val, elem) then
+      val = elem
+    end
+  end
+  return val
+end
+local max
+max = function(table, cmp)
+  if cmp == nil then
+    cmp = function(a, b)
+      return a < b
+    end
+  end
+  local val = table[1]
+  for i = 2, #table do
+    local elem = table[i]
+    if not cmp(val, elem) then
+      val = elem
+    end
+  end
+  return val
+end
+local foreach
+foreach = function(tab, fn)
+  local _accum_0 = { }
+  local _len_0 = 1
+  for _index_0 = 1, #tab do
+    local e = tab[_index_0]
+    _accum_0[_len_0] = fn(e)
+    _len_0 = _len_0 + 1
+  end
+  return _accum_0
+end
+local first
+first = function(tab, fn)
+  for _index_0 = 1, #tab do
+    local e = tab[_index_0]
+    if fn(e) then
+      return e
+    end
+  end
+end
+local exclude
+exclude = function(tab, ...)
+  local i = 1
+  while i <= #tab do
+    local removed = false
+    for j = 1, select('#', ...) do
+      if tab[i] == select(j, ...) then
+        remove(tab, i)
+        removed = true
+        break
+      end
+    end
+    if not (removed) then
+      i = i + 1
+    end
+  end
+  return tab
+end
+local flatten
+flatten = function(tab)
+  if (type(tab)) ~= 'table' then
+    return {
+      tab
+    }
+  end
+  local out = { }
+  for _index_0 = 1, #tab do
+    local e = tab[_index_0]
+    if (type(e)) == 'table' then
+      local _list_0 = flatten(e)
+      for _index_1 = 1, #_list_0 do
+        local v = _list_0[_index_1]
+        insert(out, v)
+      end
+    else
+      insert(out, e)
+    end
+  end
+  return out
+end
+return {
+  min = min,
+  max = max,
+  foreach = foreach,
+  first = first,
+  exclude = exclude,
+  flatten = flatten,
+  sortedpairs = sortedpairs,
+  insert = insert,
+  remove = remove,
+  concat = concat,
+  sort = sort,
+  unpack = unpack
+}
diff --git a/moonbuild/tableutil.moon b/moonbuild/tableutil.moon
new file mode 100644
index 0000000..77bcd49
--- /dev/null
+++ b/moonbuild/tableutil.moon
@@ -0,0 +1,66 @@
+import insert, remove, concat, sort from table
+unpack or= table.unpack
+
+sortedpairs = (table, cmp) ->
+	keys = [k for k in pairs table]
+	sort keys, cmp
+	coroutine.wrap ->
+		for key in *keys
+			coroutine.yield key, table[key]
+
+min = (table, cmp=(a, b) -> a<b) ->
+	val = table[1]
+	for i=2, #table
+		elem = table[i]
+		if cmp val, elem
+			val = elem
+	val
+
+max = (table, cmp=(a, b) -> a<b) ->
+	val = table[1]
+	for i=2, #table
+		elem = table[i]
+		if not cmp val, elem
+			val = elem
+	val
+
+foreach = (tab, fn) ->
+	[fn e for e in *tab]
+
+first = (tab, fn) ->
+	for e in *tab
+		return e if fn e
+
+exclude = (tab, ...) ->
+	i=1
+	while i<=#tab
+		removed=false
+		for j=1, select '#', ...
+			if tab[i]==select j, ...
+				remove tab, i
+				removed = true
+				break
+		i += 1 unless removed
+	tab
+
+flatten = (tab) ->
+	return {tab} if (type tab)!='table'
+	out = {}
+	for e in *tab
+		if (type e)=='table'
+			insert out, v for v in *flatten e
+		else
+			insert out, e
+	out
+
+{
+	:min, :max
+	:foreach
+	:first
+	:exclude
+	:flatten
+	:sortedpairs
+
+	:insert, :remove, :concat, :sort
+	:unpack
+}
diff --git a/moonbuild/util.lua b/moonbuild/util.lua
new file mode 100644
index 0000000..0470d5a
--- /dev/null
+++ b/moonbuild/util.lua
@@ -0,0 +1,189 @@
+local wildcard, exists, isdir, mtime
+do
+  local _obj_0 = require('moonbuild.fsutil')
+  wildcard, exists, isdir, mtime = _obj_0.wildcard, _obj_0.exists, _obj_0.isdir, _obj_0.mtime
+end
+local foreach, first, flatten, exclude, sortedpairs, min, max
+do
+  local _obj_0 = require('moonbuild.tableutil')
+  foreach, first, flatten, exclude, sortedpairs, min, max = _obj_0.foreach, _obj_0.first, _obj_0.flatten, _obj_0.exclude, _obj_0.sortedpairs, _obj_0.min, _obj_0.max
+end
+local patsubst, splitsp
+do
+  local _obj_0 = require('moonbuild.stringutil')
+  patsubst, splitsp = _obj_0.patsubst, _obj_0.splitsp
+end
+local insert, concat, sort, pairs
+do
+  local _obj_0 = require('moonbuild.tableutil')
+  insert, concat, sort, pairs = _obj_0.insert, _obj_0.concat, _obj_0.sort, _obj_0.pairs
+end
+local upper, lower
+do
+  local _obj_0 = require('moonbuild.stringutil')
+  upper, lower = _obj_0.upper, _obj_0.lower
+end
+local GLOB_PATT = '^([^%%]*)%%([^%%]*)$'
+local escapecmdpart
+escapecmdpart = function(p)
+  if (type(p)) == 'table' then
+    if p.raw then
+      return p.raw
+    end
+    return concat((function()
+      local _accum_0 = { }
+      local _len_0 = 1
+      for _index_0 = 1, #p do
+        local part = p[_index_0]
+        _accum_0[_len_0] = escapecmdpart(part)
+        _len_0 = _len_0 + 1
+      end
+      return _accum_0
+    end)(), ' ')
+  end
+  if p:match('^[a-zA-Z0-9_./-]+$') then
+    return p
+  end
+  return '"' .. p:gsub('\\', '\\\\'):gsub('"', '\\"') .. '"'
+end
+local escapecmd
+escapecmd = function(c, args)
+  if args == nil then
+    args = { }
+  end
+  c = escapecmdpart(c)
+  local _list_0 = flatten(args)
+  for _index_0 = 1, #_list_0 do
+    local a = _list_0[_index_0]
+    if a then
+      c = c .. (' ' .. escapecmdpart(a))
+    end
+  end
+  return c
+end
+local run
+run = function(c, args, params)
+  if params == nil then
+    params = { }
+  end
+  local escaped = escapecmd(c, args)
+  if params.print then
+    print(escaped)
+  end
+  local ret, _, code = os.execute(escaped)
+  if (type(ret)) == 'number' then
+    ret, code = ret == 0, ret
+  end
+  if params.error and not ret then
+    error(tostring(c) .. " failed with code " .. tostring(code))
+  end
+  return ret, code
+end
+local popen
+popen = function(c, args, mode, params)
+  if mode == nil then
+    mode = 'r'
+  end
+  if params == nil then
+    params = { }
+  end
+  local escaped = escapecmd(c, args)
+  if params.print then
+    print(escaped)
+  end
+  return io.popen(escaped, mode)
+end
+local calccdeps
+calccdeps = function(infile, includesys)
+  if includesys == nil then
+    includesys = false
+  end
+  local data = (popen('cc', {
+    includesys and '-M' or '-MM',
+    infile
+  })):read('*a')
+  local rawdeps = data:gsub('\\\n', ''):match(':(.+)')
+  local _accum_0 = { }
+  local _len_0 = 1
+  for dep in rawdeps:gmatch('%S+') do
+    if dep ~= infile then
+      _accum_0[_len_0] = dep
+      _len_0 = _len_0 + 1
+    end
+  end
+  return _accum_0
+end
+local findclib
+findclib = function(name, mode)
+  if mode == nil then
+    mode = 'all'
+  end
+  local args = {
+    name
+  }
+  if mode == 'all' or mode == 'cc' then
+    insert(args, '--cflags')
+  end
+  if mode == 'all' or mode == 'ld' then
+    insert(args, '--libs')
+  end
+  local _accum_0 = { }
+  local _len_0 = 1
+  for arg in (popen('pkg-config', args)):read('*a'):gmatch('%S+') do
+    _accum_0[_len_0] = arg
+    _len_0 = _len_0 + 1
+  end
+  return _accum_0
+end
+local match
+match = function(str, glob)
+  local prefix, suffix = glob:match(GLOB_PATT)
+  if not (prefix) then
+    return str == glob
+  end
+  if (str:sub(1, #prefix)) == prefix and (str:sub(-#suffix)) == suffix then
+    return str:sub(#prefix + 1, -#suffix - 1)
+  end
+  return false
+end
+local isglob
+isglob = function(glob)
+  if glob:match(GLOB_PATT) then
+    return true
+  else
+    return false
+  end
+end
+local env
+env = function(key, def)
+  return (os.getenv(key)) or def
+end
+return {
+  min = min,
+  max = max,
+  foreach = foreach,
+  first = first,
+  exclude = exclude,
+  flatten = flatten,
+  sortedpairs = sortedpairs,
+  insert = insert,
+  remove = remove,
+  concat = concat,
+  sort = sort,
+  unpack = unpack,
+  wildcard = wildcard,
+  mtime = mtime,
+  exists = exists,
+  isdir = isdir,
+  run = run,
+  popen = popen,
+  calccdeps = calccdeps,
+  findclib = findclib,
+  patsubst = patsubst,
+  splitsp = splitsp,
+  upper = upper,
+  lower = lower,
+  match = match,
+  isglob = isglob,
+  env = env
+}
diff --git a/moonbuild/util.moon b/moonbuild/util.moon
new file mode 100644
index 0000000..3b39c1b
--- /dev/null
+++ b/moonbuild/util.moon
@@ -0,0 +1,95 @@
+import wildcard, exists, isdir, mtime from require 'moonbuild.fsutil'
+import foreach, first, flatten, exclude, sortedpairs, min, max from require 'moonbuild.tableutil'
+import patsubst, splitsp from require 'moonbuild.stringutil'
+
+import insert, concat, sort, pairs from require 'moonbuild.tableutil'
+import upper, lower from require 'moonbuild.stringutil'
+
+GLOB_PATT='^([^%%]*)%%([^%%]*)$'
+
+-- command functions
+escapecmdpart= (p) ->
+	if (type p)=='table'
+		return p.raw if p.raw
+		return concat [escapecmdpart part for part in *p], ' '
+	return p if p\match '^[a-zA-Z0-9_./-]+$'
+	'"'..p\gsub('\\', '\\\\')\gsub('"', '\\"')..'"'
+escapecmd= (c, args={}) ->
+	c=escapecmdpart c
+	for a in *flatten args
+		c..=' '..escapecmdpart a if a
+	c
+run= (c, args, params={}) ->
+	escaped=escapecmd c, args
+	print escaped if params.print
+	ret, _, code=os.execute escaped
+	ret, code=ret==0, ret if (type ret)=='number'
+	error "#{c} failed with code #{code}" if params.error and not ret
+	ret, code
+popen= (c, args, mode='r', params={}) ->
+	escaped=escapecmd c, args
+	print escaped if params.print
+	io.popen escaped, mode
+
+calccdeps= (infile, includesys=false) ->
+	data=(popen 'cc', {includesys and '-M' or '-MM', infile})\read '*a'
+	rawdeps=data\gsub('\\\n', '')\match ':(.+)'
+	[dep for dep in rawdeps\gmatch '%S+' when dep!=infile]
+
+findclib= (name, mode='all') ->
+	args={name}
+	insert args, '--cflags' if mode=='all' or mode=='cc'
+	insert args, '--libs' if mode=='all' or mode=='ld'
+	[arg for arg in (popen 'pkg-config', args)\read('*a')\gmatch '%S+']
+
+-- glob match
+match= (str, glob) ->
+	prefix, suffix=glob\match GLOB_PATT
+	return str==glob unless prefix
+	return str\sub #prefix+1, -#suffix-1 if (str\sub 1, #prefix)==prefix and (str\sub -#suffix)==suffix
+	false
+
+-- is a valid glob
+isglob= (glob) ->
+	return if glob\match GLOB_PATT
+		true
+	else
+		false
+
+-- getenv
+env= (key, def) ->
+	(os.getenv key) or def
+
+{
+	-- table function
+	:min, :max
+	:foreach
+	:first
+	:exclude
+	:flatten
+	:sortedpairs
+
+	:insert, :remove, :concat, :sort
+	:unpack
+
+	-- file functions
+	:wildcard
+	:mtime
+	:exists, :isdir
+
+	-- command functions
+	:run, :popen
+	:calccdeps, :findclib
+
+	-- string functions
+	:patsubst
+	:splitsp
+
+	:upper, :lower
+
+	-- glob functions
+	:match, :isglob
+
+	-- env functions
+	:env
+}