From 060bf8d0d5d8dc93ec487e4b7dc11697bf38ed27 Mon Sep 17 00:00:00 2001
From: Tao Luo <luotao02@baidu.com>
Date: Tue, 3 Dec 2019 10:17:19 +0800
Subject: [PATCH] Revert "revert flags.cmake  (#21437)" (#21485)

This reverts commit c93c9e5bfeff9d7fcf6cb8ab72a19939aaca5970.
test=develop
---
 cmake/flags.cmake | 2 --
 1 file changed, 2 deletions(-)

diff --git a/cmake/flags.cmake b/cmake/flags.cmake
index d67098e99e3..27ec2eca6bb 100644
--- a/cmake/flags.cmake
+++ b/cmake/flags.cmake
@@ -148,7 +148,6 @@ set(COMMON_FLAGS
     -Wno-unused-parameter
     -Wno-unused-function
     -Wno-error=literal-suffix
-    -Wno-error=sign-compare
     -Wno-error=unused-local-typedefs
     -Wno-error=parentheses-equality # Warnings in pybind11
     -Wno-error=ignored-attributes  # Warnings in Eigen, gcc 6.3
@@ -183,7 +182,6 @@ set(GPU_COMMON_FLAGS
     -Wdelete-non-virtual-dtor
     -Wno-unused-parameter
     -Wno-unused-function
-    -Wno-error=sign-compare
     -Wno-error=literal-suffix
     -Wno-error=unused-local-typedefs
     -Wno-error=unused-function  # Warnings in Numpy Header.
-- 
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