diff --git a/autoconf.spec b/autoconf.spec
index d76d9f7653ad67a70a18be90ee22e269a5ed1091..b397d10bd1d2b97ed08dbb52708bc437f901de4f 100644
--- a/autoconf.spec
+++ b/autoconf.spec
@@ -3,7 +3,7 @@
 
 Name:           autoconf
 Version:        2.71
-Release:        4
+Release:        5
 Summary:        An extensible package to automatically configure software source code packages
 License:        GPLv2+ and GPLv3+ and GFDL
 URL:            https://www.gnu.org/software/%{name}/
@@ -33,13 +33,6 @@ can use, in the form of M4 macro calls.
 
 %prep
 %autosetup -n %{name}-%{version} -p1
-echo 'main() {}' | g++ -E -v - > g++.log 2>&1
-grep -rn -m 1 COLLECT_GCC_OPTIONS g++.log > option.log
-GCC_OPTION=`cat option.log`
-if [[ $GCC_OPTION != *"fsigned-char"* ]];then
-  sed -i "s|((char) -1) < 0|((unsigned char) -1) < 0|g" lib/autoconf/c.m4
-fi
-rm -rf g++.log option.log
 
 %build
 export EMACS=%{_bindir}/emacs
@@ -47,6 +40,13 @@ export EMACS=%{_bindir}/emacs
 %make_build
 
 %check
+echo 'main() {}' | g++ -E -v - > g++.log 2>&1
+grep -rn -m 1 COLLECT_GCC_OPTIONS g++.log > option.log
+GCC_OPTION=`cat option.log`
+if [[ $GCC_OPTION != *"fsigned-char"* ]];then
+  sed -i "s|((char) -1) < 0|((unsigned char) -1) < 0|g" lib/autoconf/c.m4
+fi
+rm -rf g++.log option.log
 make %{?_smp_mflags} check
 
 %install
@@ -79,6 +79,12 @@ fi
 
 
 %changelog
+* Tue Jun 04 2024 fuanan <fuanan3@h-partners.com> - 2.71-5
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:Fix Adapt signed-char check macro which lead to python3 testcase failure.
+
 * Fri May 24 2024 fuanan <fuanan3@h-partners.com> - 2.71-4
 - Type:bugfix
 - ID:NA