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+#!/usr/bin/env python
+# encoding: utf-8
+# Sebastian Schlingmann, 2008
+# Thomas Nagy, 2008-2018 (ita)
+
+"""
+Lua support.
+
+Compile *.lua* files into *.luac*::
+
+ def configure(conf):
+ conf.load('lua')
+ conf.env.LUADIR = '/usr/local/share/myapp/scripts/'
+ def build(bld):
+ bld(source='foo.lua')
+"""
+
+from waflib.TaskGen import extension
+from waflib import Task
+
+@extension('.lua')
+def add_lua(self, node):
+ tsk = self.create_task('luac', node, node.change_ext('.luac'))
+ inst_to = getattr(self, 'install_path', self.env.LUADIR and '${LUADIR}' or None)
+ if inst_to:
+ self.add_install_files(install_to=inst_to, install_from=tsk.outputs)
+ return tsk
+
+class luac(Task.Task):
+ run_str = '${LUAC} -s -o ${TGT} ${SRC}'
+ color = 'PINK'
+
+def configure(conf):
+ """
+ Detect the luac compiler and set *conf.env.LUAC*
+ """
+ conf.find_program('luac', var='LUAC')
+