diff --git a/libcxxabi/test/forced_unwind1.pass.cpp b/libcxxabi/test/forced_unwind1.pass.cpp
--- a/libcxxabi/test/forced_unwind1.pass.cpp
+++ b/libcxxabi/test/forced_unwind1.pass.cpp
@@ -15,9 +15,12 @@
 #include <string.h>
 #include <unwind.h>
 #include <tuple>
+#include <__cxxabi_config.h>
 
 #if defined(_LIBCXXABI_ARM_EHABI)
-int main() {}
+int main(int, char**) {
+  return 0;
+}
 #else
 static int bits = 0;
 
@@ -74,7 +77,7 @@
   }
 }
 
-int main() {
+int main(int, char**) {
   test();
   return bits != 15;
 }
diff --git a/libcxxabi/test/forced_unwind2.pass.cpp b/libcxxabi/test/forced_unwind2.pass.cpp
--- a/libcxxabi/test/forced_unwind2.pass.cpp
+++ b/libcxxabi/test/forced_unwind2.pass.cpp
@@ -16,9 +16,12 @@
 #include <string.h>
 #include <unwind.h>
 #include <tuple>
+#include <__cxxabi_config.h>
 
 #if defined(_LIBCXXABI_ARM_EHABI)
-int main() {}
+int main(int, char**) {
+  return 0;
+}
 #else
 template <typename T>
 struct Stop;
@@ -50,7 +53,7 @@
 
 static void terminate() { exit(0); }
 
-int main() {
+int main(int, char**) {
   std::set_terminate(terminate);
   try {
     test();