Remove even more clang-cl warnings

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@343436 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ac0f45..b560600 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -561,7 +561,11 @@
         -Wno-reserved-id-macro
         -Wno-gnu-include-next
         -Wno-gcc-compat # For ignoring "'diagnose_if' is a clang extension" warnings
-        -Wno-zero-as-null-pointer-constant # FIXME: Remove this and fix all occurances.
+        -Wno-zero-as-null-pointer-constant # FIXME: Remove this and fix all occurrences.
+        -Wno-deprecated-dynamic-exception-spec # For auto_ptr
+        -Wno-sign-conversion
+        -Wno-old-style-cast
+        -Wno-deprecated # FIXME: Remove this and fix all occurrences.
       )
     endif()
 elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")