Index: lldb/packages/Python/lldbsuite/test/dotest.py
===================================================================
--- lldb/packages/Python/lldbsuite/test/dotest.py
+++ lldb/packages/Python/lldbsuite/test/dotest.py
@@ -311,8 +311,8 @@
         # The CMake build passes in a path to a working FileCheck binary.
         configuration.filecheck = os.path.abspath(args.filecheck)
     else:
-        logging.error('No valid FileCheck executable; aborting...')
-        sys.exit(-1)
+        logging.warning('No valid FileCheck executable; some tests may fail...')
+        logging.warning('(Pass in a --filecheck argument to dotest.py)')
 
     if args.channels:
         lldbtest_config.channels = args.channels