From d84cdea93caf240a03331ac876ad9ad82bc33d65 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Sun, 24 Nov 2013 20:42:06 -0800
Subject: don't import implemented functions from library

---
 emscripten.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'emscripten.py')

diff --git a/emscripten.py b/emscripten.py
index 0d565030..ac66ed8d 100755
--- a/emscripten.py
+++ b/emscripten.py
@@ -796,7 +796,11 @@ def emscript_fast(infile, settings, outfile, libraries=[], compiler_engine=None,
   if DEBUG: logging.debug('emscript: js compiler glue')
 
   # Integrate info from backend
-  settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] = list(set(settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] + map(shared.JS.to_nice_ident, metadata['declares'])))
+  settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] = list(
+    set(settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] + map(shared.JS.to_nice_ident, metadata['declares'])).difference(
+      map(lambda x: x[1:], metadata['implementedFunctions'])
+    )
+  )
 
   # Settings changes
   assert settings['TARGET_LE32'] == 1
-- 
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