diff --git a/handle-Werror-return-type.patch b/handle-Werror-return-type.patch
new file mode 100644
index 0000000..c8c8b14
--- /dev/null
+++ b/handle-Werror-return-type.patch
@@ -0,0 +1,10 @@
+--- libtool-2.4.7/tests/resident.at
++++ libtool-2.4.7/tests/resident.at
+@@ -117,6 +117,7 @@
+ setup_plugin (void)
+ {
+   atexit (bye);
++  return 0;
+ }
+ ]])
+ 
diff --git a/libtool.changes b/libtool.changes
index ace3aab..161a197 100644
--- a/libtool.changes
+++ b/libtool.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Mar 29 13:46:49 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- add handle-Werror-return-type.patch
+- disable lto, breaks libtool as seen in testsuite 
+
 -------------------------------------------------------------------
 Sun Mar 20 20:47:49 UTC 2022 - Dirk Müller <dmueller@suse.com>
 
diff --git a/libtool.spec b/libtool.spec
index 14ead83..ddc047a 100644
--- a/libtool.spec
+++ b/libtool.spec
@@ -36,6 +36,8 @@ Source3:        baselibs.conf
 Source4:        libtool-rpmlintrc
 # PATCH-FIX-OPENSUSE -- do not add build host name boo#1084909
 Patch0:         libtool-reproducible-hostname.patch
+# PATCH-FIX-OPENSUSE: workaround irrelevant compiler warning
+Patch1:         handle-Werror-return-type.patch
 BuildRequires:  automake
 BuildRequires:  gcc-c++
 BuildRequires:  gcc-fortran
@@ -65,22 +67,19 @@ Group:          Development/Libraries/C and C++
 Library needed by programs that use the ltdl interface of GNU libtool.
 
 %prep
-%setup -q -n libtool-%{version}
-%patch0 -p1
+%autosetup -p1 -n libtool-%{version}
 
 %build
-%global _lto_cflags %{_lto_cflags} -ffat-lto-objects
-# FIXME: you should use the %%configure macro
-./configure CFLAGS="%{optflags}" \
-   --prefix=%{_prefix} --infodir=%{_infodir} --libdir=%{_libdir}
-# force rebuild with non-broken makeinfo
+%define _lto_cflags %{nil}
+export CFLAGS="%{optflags} -fno-strict-aliasing"
+%configure
 rm -f doc/libtool.info
 %make_build
 
 %if "%{flavor}" == "testsuite"
 %check
 trap 'test $? -ne 0 && cat tests/testsuite.log' EXIT
-%make_build check || :
+%make_build check
 
 %install
 %else