!28 Fix mysql5 building failure when using gcc 10.X

From: @bzhaoop
Reviewed-by: @zhengzhenyu
Signed-off-by: @zhengzhenyu

mysql5.spec

@@ -1,5 +1,11 @@
 %global pkg_name %{name}
 %global pkgnamepatch mysql5
+
+# The reason of introduce this is:
+# openEuler/gcc version bump so quick. So any new gcc version might default disable
+# some options which are default to enable in previos gcc versions.
+%global gcc_c_adaptive_options -fcommon
+
 %{!?runselftest:%global runselftest 1}
 %global check_testsuite 0
 %global with_shared_lib_major_hack 0
@@ -33,7 +39,7 @@
 %global sameevr   %{?epoch:%{epoch}:}%{version}-%{release}
 Name:                mysql5
 Version:             5.7.34
-Release:             1
+Release:             2
 Summary:             MySQL client programs and shared libraries
 URL:                 http://www.mysql.com
 License:             GPLv2 with exceptions and LGPLv2 and BSD
@@ -343,7 +349,7 @@ cmake .. \
          -DWITH_SSL=system \
          -DWITH_ZLIB=system \
          -DWITH_BOOST=../boost \
-         -DCMAKE_C_FLAGS="%{optflags}%{?with_debug: -fno-strict-overflow -Wno-unused-result -Wno-unused-function -Wno-unused-but-set-variable}" \
+         -DCMAKE_C_FLAGS="%{optflags}%{?with_debug: -fno-strict-overflow -Wno-unused-result -Wno-unused-function -Wno-unused-but-set-variable} %{gcc_c_adaptive_options}" \
          -DCMAKE_CXX_FLAGS="%{optflags}%{?with_debug: -fno-strict-overflow -Wno-unused-result -Wno-unused-function -Wno-unused-but-set-variable}" \
 %{?with_debug: -DWITH_DEBUG=1}\
          -DTMPDIR=/var/tmp \
@@ -459,7 +465,6 @@ cp ../../mysql-test/%{skiplist} .
 export MTR_BUILD_THREAD=%{__isa_bits}
 ./mtr \
   --mem --parallel=auto --force --retry=2 \
-  --mysqld=--binlog-format=mixed \
   --suite-timeout=720 --testcase-timeout=30 \
   --report-unstable-tests --clean-vardir \
 %if %{check_testsuite}
@@ -721,6 +726,9 @@ fi
 %endif
 
 %changelog
+* Mon Aug 2 2021 bzhaoop <bzhaojyathousandy@gmail.com> - 5.7.34-2
+- Fix the compiling issue when bump gcc version to 10.X
+
 * Thu Jul 1 2021 bzhaoop <bzhaojyathousandy@gmail.com> - 5.7.34-1
 - Bump from 5.7.21 to latest 5.7.34
 - Correct the test steps and options