diff --git a/config/mh-mingw b/config/mh-mingw
index d91323ef5fa..22b2936b9d5 100644
--- a/config/mh-mingw
+++ b/config/mh-mingw
@@ -1,6 +1,6 @@
 # Add -D__USE_MINGW_ACCESS to enable the built compiler to work on Windows
 # Vista (see PR33281 for details).
 BOOT_CFLAGS += -D__USE_MINGW_ACCESS -Wno-pedantic-ms-format
-CFLAGS += -D__USE_MINGW_ACCESS
+CFLAGS += -D__USE_MINGW_ACCESS -Wno-pedantic-ms-format
 # Increase stack limit to same as Linux default.
-LDFLAGS += -Wl,--stack,8388608
+LDFLAGS += -Wl,--stack,8388608 -Wl,-no-undefined