Add Tool support for SCons

To use:
* Link emscripten directory to <ProjectRoot>/site_scons/site_tools/emscripten
* Load into an Environment via env.Tool("emscripten")
* Use Program and Library normally in SCons

2 files changed, 47 insertions, 0 deletions

diff --git a/tools/scons/site_scons/site_tools/emscripten/__init__.py b/tools/scons/site_scons/site_tools/emscripten/__init__.py
new file mode 100644
index 00000000..8ae2288e
--- /dev/null
+++ b/tools/scons/site_scons/site_tools/emscripten/__init__.py
@@ -0,0 +1,3 @@
+#!/usr/bin/env python
+
+from emscripten import exists, generate
diff --git a/tools/scons/site_scons/site_tools/emscripten/emscripten.py b/tools/scons/site_scons/site_tools/emscripten/emscripten.py
new file mode 100644
index 00000000..cb14b58e
--- /dev/null
+++ b/tools/scons/site_scons/site_tools/emscripten/emscripten.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+import os
+
+def generate(env, emscripten_path=None, **kw):
+	""" SCons tool entry point """
+
+	if emscripten_path is None:
+		# Try to find emscripten
+		# Use same method as Emscripten's shared.py
+		EM_CONFIG = os.environ.get('EM_CONFIG')
+		if not EM_CONFIG:
+			EM_CONFIG = '~/.emscripten'
+		
+		CONFIG_FILE = os.path.expanduser(EM_CONFIG)
+		try:
+			exec(open(CONFIG_FILE, 'r').read())
+		except Exception, e:
+  			print >> sys.stderr, 'Error in evaluating %s (at %s): %s' % (EM_CONFIG, CONFIG_FILE, str(e))
+  			sys.exit(1)
+  		
+  		emscripten_path = EMSCRIPTEN_ROOT
+
+	try:
+		emscPath = emscripten_path.abspath
+	except:
+		emscPath = emscripten_path
+	
+	env.Replace(CC     = os.path.join(emscPath, "emcc"    ))
+	env.Replace(CXX    = os.path.join(emscPath, "em++"    ))
+	env.Replace(LINK   = os.path.join(emscPath, "emld"    ))
+	# SHLINK and LDMODULE should use LINK so no
+	# need to change them here
+    
+	env.Replace(AR     = os.path.join(emscPath, "emar"    ))
+	env.Replace(RANLIB = os.path.join(emscPath, "emranlib"))
+
+ 	env.Replace(OBJSUFFIX  = [".js", ".bc", ".o"][2])
+ 	env.Replace(LIBSUFFIX  = [".js", ".bc", ".o"][2])
+ 	env.Replace(PROGSUFFIX = [".html", ".js"    ][1])
+
+def exists(env):
+	""" NOOP method required by SCons """
+	return 1