--- /dev/null
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -429,7 +429,7 @@ while 1:
+ # No progress in last pass. Verify all remaining symbols are weak.
+ for name in unresolved:
+ if not needed_symbols[name].weak:
+- raise "Unresolvable symbol %s" % name
++ print "WARNING: Unresolvable symbol %s" % name
+ break
+
+ previous_pass_unresolved = unresolved
+@@ -467,10 +467,7 @@ while 1:
+
+ # which symbols are actually used from each lib
+ for name in needed_symbols:
+- if not name in symbol_provider:
+- if not needed_symbols[name].weak:
+- raise "No library provides non-weak %s" % symbol
+- else:
++ if name in symbol_provider:
+ lib = symbol_provider[name]
+ library_symbols_used[lib].add(library_symbols[lib][name])
+