From 55863be1fc341bd37d4077ecdbb7ff12f673dc89 Mon Sep 17 00:00:00 2001
From: Liming Gao <liming.gao@intel.com>
Date: Thu, 17 Oct 2019 14:55:51 +0800
Subject: [PATCH] MdeModulePkg RegularExpressionDxe: Disable warning for CLANG9
 tool chain

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1603

Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
---
 .../Universal/RegularExpressionDxe/RegularExpressionDxe.inf    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
index 883d5f1127..e9c885465d 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
@@ -107,6 +107,9 @@
   # Oniguruma: tag_end in parse_callout_of_name
   GCC:*_*_*_CC_FLAGS = -Wno-error=maybe-uninitialized
 
+  # Oniguruma: implicit conversion from 'UINTN' (aka 'unsigned long long') to 'long'
+  GCC:*_CLANG9_*_CC_FLAGS = -Wno-error=constant-conversion
+
   # Not add -Wno-error=maybe-uninitialized option for XCODE
   # XCODE doesn't know this option
   XCODE:*_*_*_CC_FLAGS =