diff --git a/build-compare.changes b/build-compare.changes
index 2fa5998..1f5eaa7 100644
--- a/build-compare.changes
+++ b/build-compare.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Mon Sep 19 08:02:40 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- move license to licensedir
+- spec file cleanups
+
+-------------------------------------------------------------------
+Fri Sep  2 07:15:18 UTC 2022 - Martin Kampas <martin.kampas@jolla.com>
+
+- fix compatibility with older sed (#55) 
+
 -------------------------------------------------------------------
 Tue Aug 23 06:53:29 UTC 2022 - Martin Kampas <martin.kampas@jolla.com>
 
diff --git a/build-compare.spec b/build-compare.spec
index 43e0ef7..8ca15d1 100644
--- a/build-compare.spec
+++ b/build-compare.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package build-compare
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2022 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -12,26 +12,29 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
 
 Name:           build-compare
-Summary:        Build Result Compare Script
-License:        GPL-2.0+
-Group:          Development/Tools/Building
-Url:            https://github.com/openSUSE/build-compare
-Version:        20220823T100012.86340a1
+Version:        20220926T095347.40c240f
 Release:        0
+Summary:        Build Result Compare Script
+License:        GPL-2.0-or-later
+Group:          Development/Tools/Building
+URL:            https://github.com/openSUSE/build-compare
 Source1:        COPYING
 Source2:        same-build-result.sh
 Source3:        pkg-diff.sh
 Source4:        functions.sh
 Source5:        srpm-check.sh
+BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+#!BuildIgnore:  build-compare
+BuildArch:      noarch
 %if 0%{?suse_version}
 Requires:       bash
-Requires:       cpio
 Requires:       coreutils
+Requires:       cpio
 Requires:       diffutils
 Requires:       file
 Requires:       gawk
@@ -39,28 +42,28 @@ Requires:       grep
 Requires:       rpm
 Requires:       sed
 %endif
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-BuildArch:      noarch
-#!BuildIgnore:  build-compare
 
 %description
 This package contains scripts to find out if the build result differs
 to a former build.
 
-
 %prep
 %setup -q -c -T
+install -p -m 0644 %{SOURCE1} .
 
 %build
 
 %install
-mkdir -p $RPM_BUILD_ROOT/usr/lib/build/ $RPM_BUILD_ROOT/%_defaultdocdir/%name
-install -m 0755 %SOURCE2 %SOURCE3 %SOURCE4 %SOURCE5 $RPM_BUILD_ROOT/usr/lib/build/
-install -m 0644 %SOURCE1 $RPM_BUILD_ROOT/%_defaultdocdir/%name/
+mkdir -p %{buildroot}%{_prefix}/lib/build/
+install -m 0755 %{SOURCE2} %{SOURCE3} %{SOURCE4} %{SOURCE5} %{buildroot}%{_prefix}/lib/build/
 
 %files
+%if 0%{?suse_version} < 1500
 %defattr(-,root,root)
-%doc %_defaultdocdir/%name
-/usr/lib/build
+%doc COPYING
+%else
+%license COPYING
+%endif
+%{_prefix}/lib/build
 
 %changelog
diff --git a/functions.sh b/functions.sh
index 259c3cc..f8e2684 100644
--- a/functions.sh
+++ b/functions.sh
@@ -404,7 +404,7 @@ function cmp_rpm_meta ()
       do
         : "${REPLY}"
         files+=( "${REPLY}" )
-      done < <(diff -U0 $file1 $file2 | sed -E -n -e '/^\+\//{s/^\+//;s/ [0-9a-f]+ [0-9]+$//;p}')
+      done < <(diff -U0 $file1 $file2 | sed --regexp-extended -n -e '/^\+\//{s/^\+//;s/ [0-9a-f]+ [0-9]+$//;p}')
     fi
 
     if test -n "$sh"; then