diff --git a/libdvdnav-strict-aliasing.patch b/libdvdnav-strict-aliasing.patch
deleted file mode 100644
index 58f69c5..0000000
--- a/libdvdnav-strict-aliasing.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- Makefile.am.orig	2014-09-29 09:17:41.211405435 +0200
-+++ Makefile.am	2014-12-17 23:19:33.173493347 +0100
-@@ -1,6 +1,6 @@
- ACLOCAL_AMFLAGS = -Im4
- 
--AM_CPPFLAGS = -I$(top_srcdir)/src $(THREAD_CFLAGS) $(DVDREAD_CFLAGS)
-+AM_CPPFLAGS = -I$(top_srcdir)/src $(THREAD_CFLAGS) $(DVDREAD_CFLAGS) -fno-strict-aliasing
- 
- dist_doc_DATA = AUTHORS ChangeLog COPYING README TODO
- 
diff --git a/libdvdnav.changes b/libdvdnav.changes
index 25e6e07..797e040 100644
--- a/libdvdnav.changes
+++ b/libdvdnav.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Aug 14 08:05:41 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Format with spec-cleaner
+- Remove not really needed patch:
+  * libdvdnav-strict-aliasing.patch
+
 -------------------------------------------------------------------
 Mon Apr 15 18:11:05 UTC 2019 - olaf@aepfle.de
 
diff --git a/libdvdnav.spec b/libdvdnav.spec
index 344e879..9006172 100644
--- a/libdvdnav.spec
+++ b/libdvdnav.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libdvdnav
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -12,76 +12,72 @@
 # 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/
 #
 
 
+%define libname libdvdnav4
 Name:           libdvdnav
-Summary:        DVD Navigation Library
-License:        GPL-2.0+
-Group:          Productivity/Multimedia/Other
-Url:            https://www.videolan.org/developers/libdvdnav.html
 Version:        6.0.0
 Release:        0
+Summary:        DVD Navigation Library
+License:        GPL-2.0-or-later
+Group:          Productivity/Multimedia/Other
+URL:            https://www.videolan.org/developers/libdvdnav.html
 Source0:        http://download.videolan.org/videolan/%{name}/%{version}/%{name}-%{version}.tar.bz2
 Source1:        http://download.videolan.org/videolan/%{name}/%{version}/%{name}-%{version}.tar.bz2.asc
 Source1000:     baselibs.conf
 Patch0:         libdvdnav-dvdread.patch
-Patch1:         libdvdnav-strict-aliasing.patch
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  libdvdread-devel >= 5.0.3
 BuildRequires:  libtool
-BuildRequires:  pkg-config
+BuildRequires:  pkgconfig
 
 %description
 This library contains functions to display DVD video menus.
 
-%package -n libdvdnav4
+%package -n %{libname}
 Summary:        A DVD Navigation Library
 Group:          Productivity/Multimedia/Other
-Provides:       %{name} = %{version}
-Obsoletes:      %{name} <= 0.1.10
+Provides:       %{name}
+Obsoletes:      %{name}
 
-%description -n libdvdnav4
+%description -n %{libname}
 This library contains functions to display DVD video menus.
 
 %package devel
 Summary:        Development Environment for libdvdnav
 Group:          Development/Libraries/C and C++
-Requires:       libdvdnav4 = %{version}
+Requires:       %{libname} = %{version}
 
 %description devel
 This library contains functions to display DVD video menus.
 
 %prep
-%setup -q 
+%setup -q
 %patch0 -p1
-%patch1
 
 %build
-autoreconf -f -i -v
-%configure --disable-static --with-pic --docdir=%{_docdir}/libdvdnav4
-%__make %{?_smp_mflags}
+autoreconf -fvi
+%configure \
+  --disable-silent-rules \
+  --disable-static
+make %{?_smp_mflags}
 
 %install
-make DESTDIR=$RPM_BUILD_ROOT install
-%__rm -f %{buildroot}%{_libdir}/*.la
-
-%clean
-%{?buildroot:%__rm -rf "%{buildroot}"}
+%make_install
+rm -r %{buildroot}%{_datadir}/doc/libdvdnav/
+find %{buildroot} -type f -name "*.la" -delete -print
 
 %post   -n libdvdnav4 -p /sbin/ldconfig
-
 %postun -n libdvdnav4 -p /sbin/ldconfig
 
-%files -n libdvdnav4
-%defattr(-,root,root)
+%files -n %{libname}
 %{_libdir}/libdvdnav.so.4
 %{_libdir}/libdvdnav.so.4.*
-%doc AUTHORS ChangeLog COPYING README TODO
+%license COPYING
+%doc AUTHORS ChangeLog README TODO
 
 %files devel
-%defattr(-,root,root)
 %{_includedir}/dvdnav
 %{_libdir}/libdvdnav.so
 %{_libdir}/pkgconfig/dvdnav.pc