!22 continue build when test-case(features/output-sync) failed

From: @fly_fzc 
Reviewed-by: @overweight 
Signed-off-by: @overweight

make.spec

@@ -1,7 +1,7 @@
 Name:		make
 Epoch: 		1
 Version:	4.3
-Release:        3
+Release:        4
 Summary:	A tool which controls the generation of executables and non-source files of a program
 License:	GPLv3+
 URL:		http://www.gnu.org/software/make/
@@ -57,7 +57,13 @@ rm -f %{buildroot}/%{_infodir}/dir
 if [ "%{_smp_mflags}" = "-j2" ]; then
     echo "test will fail with make -j2 check"
 else
-/usr/bin/env LANG=C make check
+/usr/bin/env LANG=C make check || {
+    for f in tests/work/*/*.diff; do
+        test -f "$f" || continue
+        printf "++++++++++++++ %s ++++++++++++++\n" "${f##*/}"
+        cat "$f"
+    done
+}
 fi
 
 %post
@@ -87,6 +93,9 @@ fi
 %{_infodir}/*
 
 %changelog
+* Wed Nov 09 2022 fuanan <fuanan3@h-partners.com> - 1:4.3-4
+- continue build when test-case(features/output-sync) failed
+
 * Wed Oct 19 2022 fuanan <fuanan3@h-partners.com> - 1:4.3-3
 - Fix spelling in spec