diff --git a/gcc_secure.spec b/gcc_secure.spec
index d476c27fba3be99f0773edaf90fef4c4e93a06ca..8cf0f4495f227981dbd8d5c5b386c0eba8eb45d5 100644
--- a/gcc_secure.spec
+++ b/gcc_secure.spec
@@ -3,7 +3,7 @@ Summary:        Build with gcov
 License:        GPL
 Group:          System/Management
 Version:        1.0
-Release:        0.8
+Release:        0.9
 BuildRoot:      %{_tmppath}/%{name}-%{version}
 #Source:         %{name}-%{version}.tar.bz2
 
@@ -86,7 +86,7 @@ cat <<END1 > $old_gplus
 #!/bin/sh
 gcc_secure_exclude=\`rpm --eval %{gcc_secure_exclude}\`
 if ! cat /.build.command | egrep "\$gcc_secure_exclude" &>/dev/null; then
-    sec_opt='-fPIC -D_FORTIFY_SOURCE=2 -O2 -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wtrampolines'
+    sec_opt='-fPIC -D_FORTIFY_SOURCE=2 -O2 -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wtrampolines -fsigned-char'
     fs_opt=''
 
     if [[ "\$@" =~ "-O0" ]]; then
@@ -126,7 +126,7 @@ cat <<END1 > $old_cpp
 #!/bin/sh
 gcc_secure_exclude=\`rpm --eval %{gcc_secure_exclude}\`
 if ! cat /.build.command | egrep "\$gcc_secure_exclude" &>/dev/null; then
-    sec_opt='-fPIC -D_FORTIFY_SOURCE=2 -O2 -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wtrampolines'
+    sec_opt='-fPIC -D_FORTIFY_SOURCE=2 -O2 -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wtrampolines -fsigned-char'
     fs_opt=''
 
     if [[ "\$@" =~ "-O0" ]]; then
@@ -172,6 +172,12 @@ rm -rf %{_tmppath}/%{name}-%{version}
 rm -rf $RPM_BUILD_DIR/%{name}-%{version}
 
 %changelog
+* Wed Jul 21 2021 licihua<licihua@huawei.com> - 1.0-0.9
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC: support -fsigned-char for g++
+
 * Mon Jul 12 2021 shenyangyang<shenyangyang4@huawei.com> - 1.0-0.8
 - Type:enhancement
 - ID:NA