diff --git a/CTestCustom.cmake.in b/CTestCustom.cmake.in
index 8c4d400a3..d716498ac 100644
--- a/CTestCustom.cmake.in
+++ b/CTestCustom.cmake.in
@@ -53,6 +53,7 @@ set(CTEST_CUSTOM_WARNING_EXCEPTION
   "CMakeSetupManifest.xml.*manifest authoring warning.*Unrecognized Element"
   "cc-3968 CC: WARNING File.*" # "implicit" truncation by static_cast
   "ld: warning: directory not found for option .-(F|L)"
+  "ld: warning: in .*/libgcc.a, file is not of required architecture"
   "warning.*This version of Mac OS X is unsupported"
   "clang.*: warning: argument unused during compilation: .-g"
   "note: in expansion of macro" # diagnostic context note