diff --git a/libunwind/src/libunwind.cpp b/libunwind/src/libunwind.cpp
--- a/libunwind/src/libunwind.cpp
+++ b/libunwind/src/libunwind.cpp
@@ -16,7 +16,15 @@
 
 #include <stdlib.h>
 
-#if __has_feature(address_sanitizer)
+#if defined(__has_feature)
+#define has_asan_portable __has_feature(address_sanitizer)
+#elif defined(__SANITIZE_ADDRESS__)
+#define has_asan_portable __SANITIZE_ADDRESS__
+#else
+#define has_asan_portable 0
+#endif
+
+#if has_asan_portable
 #include <sanitizer/asan_interface.h>
 #endif
 
@@ -187,7 +195,7 @@
 /// Resume execution at cursor position (aka longjump).
 _LIBUNWIND_HIDDEN int __unw_resume(unw_cursor_t *cursor) {
   _LIBUNWIND_TRACE_API("__unw_resume(cursor=%p)", static_cast<void *>(cursor));
-#if __has_feature(address_sanitizer)
+#if has_asan_portable
   // Inform the ASan runtime that now might be a good time to clean stuff up.
   __asan_handle_no_return();
 #endif