1 diff --git a/setup.py b/setup.py
2 index da67731..928e0de 100644
5 @@ -293,6 +293,7 @@ class PyBuildExt(build_ext):
6 print("Failed to build these modules:")
7 print_three_column(failed)
9 + if cross_compiling: sys.exit(1)
11 if self.failed_on_import:
12 failed = self.failed_on_import[:]