Fix compilation error with -DLIBCXXABI_ENABLE_THREADS=OFF
The error is:
libcxxabi/src/cxa_guard_impl.h: In instantiation of ‘__cxxabiv1::{anonymous}::LibcppMutex __cxxabiv1::{anonymous}::GlobalStatic<__cxxabiv1::{anonymous}::LibcppMutex>::instance’:
libcxxabi/src/cxa_guard_impl.h:529:62: required from here
libcxxabi/src/cxa_guard_impl.h:510:23: error: ‘__cxxabiv1::{anonymous}::LibcppMutex __cxxabiv1::{anonymous}::GlobalStatic<__cxxabiv1::{anonymous}::LibcppMutex>::instance’ has incomplete type
_LIBCPP_SAFE_STATIC T GlobalStatic<T>::instance = {};
^
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@359175 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/src/cxa_guard_impl.h b/src/cxa_guard_impl.h
index ea82d20..412099e 100644
--- a/src/cxa_guard_impl.h
+++ b/src/cxa_guard_impl.h
@@ -257,6 +257,9 @@
private:
std::__libcpp_condvar_t cond = _LIBCPP_CONDVAR_INITIALIZER;
};
+#else
+struct LibcppMutex {};
+struct LibcppCondVar {};
#endif // !defined(_LIBCXXABI_HAS_NO_THREADS)
