diff --git a/waflib/extras/c_emscripten.py b/waflib/extras/c_emscripten.py
new file mode 100644
index 00000000..405cf13b
--- /dev/null
+++ b/waflib/extras/c_emscripten.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 vi:ts=4:noexpandtab
+
+import os, subprocess, shlex
+
+from waflib import Logs
+from waflib.Tools import ccroot, ar, gcc, gxx
+from waflib.Configure import conf
+from waflib.TaskGen import after_method, feature
+
+from waflib.Tools.compiler_c import c_compiler
+from waflib.Tools.compiler_cxx import cxx_compiler
+
+for supported_os in ('linux', 'darwin', 'gnu', 'aix'):
+	c_compiler[supported_os].append('c_emscripten')
+	cxx_compiler[supported_os].append('c_emscripten')
+
+
+@conf
+def get_emscripten_version(conf, cc):
+	"""
+	Emscripten doesn't support processing '-' like clang/gcc
+	"""
+
+	dummy = conf.cachedir.parent.make_node("waf-emscripten.c")
+	dummy.write("")
+	cmd = cc + ['-dM', '-E', '-x', 'c', dummy.abspath()]
+	env = conf.env.env or None
+	try:
+		p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
+		out = p.communicate()[0]
+	except Exception as e:
+		conf.fatal('Could not determine emscripten version %r: %s' % (cmd, e))
+
+	if not isinstance(out, str):
+		out = out.decode(sys.stdout.encoding or 'iso8859-1')
+
+	k = {}
+	out = out.splitlines()
+	for line in out:
+		lst = shlex.split(line)
+		if len(lst)>2:
+			key = lst[1]
+			val = lst[2]
+			k[key] = val
+
+	if not ('__clang__' in k and 'EMSCRIPTEN' in k):
+		conf.fatal('Could not determine the emscripten compiler version.')
+
+	conf.env.DEST_OS = 'generic'
+	conf.env.DEST_BINFMT = 'elf'
+	conf.env.DEST_CPU = 'asm-js'
+	conf.env.CC_VERSION = (k['__clang_major__'], k['__clang_minor__'], k['__clang_patchlevel__'])
+	return k
+
+@conf
+def find_emscripten(conf):
+	cc = conf.find_program(['emcc'], var='CC')
+	conf.get_emscripten_version(cc)
+	conf.env.CC = cc
+	conf.env.CC_NAME = 'emscripten'
+	cxx = conf.find_program(['em++'], var='CXX')
+	conf.env.CXX = cxx
+	conf.env.CXX_NAME = 'emscripten'
+
+def configure(conf):
+	conf.find_emscripten()
+	conf.find_ar()
+	conf.gcc_common_flags()
+	conf.gxx_common_flags()
+	conf.cc_load_tools()
+	conf.cc_add_flags()
+	conf.cxx_load_tools()
+	conf.cxx_add_flags()
+	conf.link_add_flags()
+	conf.env.cshlib_PATTERN = '%s.js'
+	conf.env.cxxshlib_PATTERN = '%s.js'
+	conf.env.cstlib_PATTERN = '%s.bc'
+	conf.env.cxxstlib_PATTERN = '%s.bc'
+	conf.env.cprogram_PATTERN = '%s.html'
+	conf.env.cxxprogram_PATTERN = '%s.html'
+	conf.env.append_value('LINKFLAGS',['-Wl,--enable-auto-import'])
+
+@feature('c', 'cxx', 'd', 'asm', 'fc', 'includes')
+@after_method('propagate_uselib_vars', 'process_source')
+def apply_incpaths(self):
+	"""
+	Emscripten doesn't like absolute include paths
+	"""
+	lst = self.to_incnodes(self.to_list(getattr(self, 'includes', [])) + self.env['INCLUDES'])
+	self.includes_nodes = lst
+	self.env['INCPATHS'] = [x.path_from(self.bld.bldnode) for x in lst]
+