From e7099d55181d3c6e06c125ff93069733ba4545a2 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sdsang@taosdata.com>
Date: Wed, 16 Sep 2020 11:02:36 +0800
Subject: [PATCH] add void cast to solve unused variables.

---
 cmake/define.inc              | 2 +-
 src/client/src/tscSQLParser.c | 2 +-
 src/client/src/tscUtil.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmake/define.inc b/cmake/define.inc
index 5069fb0512..84df6f5405 100755
--- a/cmake/define.inc
+++ b/cmake/define.inc
@@ -118,7 +118,7 @@ IF (TD_DARWIN_64)
   ADD_DEFINITIONS(-DDARWIN)
   ADD_DEFINITIONS(-D_REENTRANT -D__USE_POSIX -D_LIBC_REENTRANT)
   ADD_DEFINITIONS(-DUSE_LIBICONV)
-  SET(COMMON_FLAGS "-std=gnu99 -Wall -Werror -Wno-self-assign -Wno-missing-braces -fPIC -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
+  SET(COMMON_FLAGS "-std=gnu99 -Wall -Werror -Wno-missing-braces -fPIC -g -msse4.2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE")
   SET(DEBUG_FLAGS "-O0 -DDEBUG")
   SET(RELEASE_FLAGS "-O0")
 ENDIF ()
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index f9f72f9174..165ee7acc5 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -5271,7 +5271,7 @@ static void doUpdateSqlFunctionForColPrj(SQueryInfo* pQueryInfo) {
       }
 
       assert(qualifiedCol);
-      qualifiedCol = qualifiedCol;
+      (void) qualifiedCol;
     }
   }
 }
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 636fccd3a0..a78bedb3d9 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1788,7 +1788,7 @@ static void doSetSqlExprAndResultFieldInfo(SQueryInfo* pQueryInfo, SQueryInfo* p
     }
 
     assert(matched);
-    matched = matched;
+    (void)matched;
   }
 
   tscFieldInfoUpdateOffset(pNewQueryInfo);
-- 
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