diff --git a/compiler-rt/lib/asan/asan_win.cc b/compiler-rt/lib/asan/asan_win.cc
index 80d70b9c0b6f..54fec2b14edf 100644
--- a/compiler-rt/lib/asan/asan_win.cc
+++ b/compiler-rt/lib/asan/asan_win.cc
@@ -78,6 +78,10 @@ void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
   UNIMPLEMENTED();
 }
 
+void AsanOnSIGSEGV(int, void *siginfo, void *context) {
+  UNIMPLEMENTED();
+}
+
 }  // namespace __asan
 
 #endif  // _WIN32
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
index 0424e97ee756..28042e035d7e 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
@@ -421,7 +421,8 @@ void UnsetAlternateSignalStack() {
   // FIXME: Decide what to do on Windows.
 }
 
-void InstallDeadlySignalHandlers() {
+void InstallDeadlySignalHandlers(SignalHandlerType handler) {
+  (void)handler;
   // FIXME: Decide what to do on Windows.
 }