Don't trigger 1-core assert when there are no chunks to work on.

1 files changed, 3 insertions, 3 deletions

diff --git a/emscripten.py b/emscripten.py
index 8d46b888..502e951c 100755
--- a/emscripten.py
+++ b/emscripten.py
@@ -225,10 +225,10 @@ def emscript(infile, settings, outfile, libraries=[], compiler_engine=None,
 
   # TODO: minimize size of forwarded data from funcs to what we actually need
 
-  if cores == 1 and total_ll_size < MAX_CHUNK_SIZE:
-    assert len(chunks) == 1, 'no point in splitting up without multiple cores'
-
   if len(chunks) > 0:
+    if cores == 1 and total_ll_size < MAX_CHUNK_SIZE:
+      assert len(chunks) == 1, 'no point in splitting up without multiple cores'
+
     if DEBUG: print >> sys.stderr, '  emscript: phase 2 working on %d chunks %s (intended chunk size: %.2f MB, meta: %.2f MB, forwarded: %.2f MB, total: %.2f MB)' % (len(chunks), ('using %d cores' % cores) if len(chunks) > 1 else '', chunk_size/(1024*1024.), len(meta)/(1024*1024.), len(forwarded_data)/(1024*1024.), total_ll_size/(1024*1024.))
 
     commands = [