1 files changed, 35 insertions, 0 deletions
diff --git a/testing/emscripten/embuilder-fix-task-all-for-wasm.patch b/testing/emscripten/embuilder-fix-task-all-for-wasm.patch
new file mode 100644
index 0000000000..375891e6eb
--- /dev/null
+++ b/testing/emscripten/embuilder-fix-task-all-for-wasm.patch
@@ -0,0 +1,35 @@
+From: Jakub Jirutka <jakub@jirutka.cz>
+Date: Sun, 2 Apr 2017 23:11:41 +0200
+Subject: [PATCH] embuilder: if EMCC_WASM_BACKEND, omit tasks using pthreads
+ from ALL
+
+Fixes the following error:
+
+    $ EMCC_WASM_BACKEND=1 ./embuild build ALL
+    Traceback (most recent call last):
+      File "emscripten/src/emscripten-1.37.9/emcc", line 13, in <module>
+        emcc.run()
+      File "emscripten/src/emscripten-1.37.9/emcc.py", line 1278, in run
+        assert not shared.Settings.USE_PTHREADS, 'WebAssembly does not support pthreads'
+    AssertionError: WebAssembly does not support pthreads
+
+Upstream-Issue: https://github.com/kripken/emscripten/pull/5107
+---
+ embuilder.py | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/embuilder.py b/embuilder.py
+index 6674ccd..eaa762a 100755
+--- a/embuilder.py
++++ b/embuilder.py
+@@ -84,6 +84,10 @@ def build_port(port_name, lib_name, params):
+   tasks = sys.argv[2:]
+   if 'ALL' in tasks:
+     tasks = ['libc', 'libc-mt', 'dlmalloc', 'dlmalloc_threadsafe', 'pthreads', 'libcxx', 'libcxx_noexcept', 'libcxxabi', 'gl', 'binaryen', 'bullet', 'freetype', 'libpng', 'ogg', 'sdl2', 'sdl2-image', 'sdl2-ttf', 'sdl2-net', 'vorbis', 'zlib']
++    if os.environ.get('EMCC_WASM_BACKEND') == '1':
++      skip_tasks = {'libc-mt', 'dlmalloc_threadsafe', 'pthreads'}
++      print('Skipping building of %s, because WebAssembly does not support pthreads.' % ', '.join(skip_tasks))
++      tasks = [x for x in tasks if x not in skip_tasks]
+     if os.environ.get('EMSCRIPTEN_NATIVE_OPTIMIZER'):
+       print 'Skipping building of native-optimizer since environment variable EMSCRIPTEN_NATIVE_OPTIMIZER is present and set to point to a prebuilt native optimizer path.'
+     elif hasattr(shared, 'EMSCRIPTEN_NATIVE_OPTIMIZER'):