diff --git a/libwebp.spec b/libwebp.spec
index 6f434c6..b54f534 100644
--- a/libwebp.spec
+++ b/libwebp.spec
@@ -1,6 +1,6 @@
 Name:          libwebp
 Version:       0.5.1
-Release:       1mamba
+Release:       2mamba
 Summary:       A method of lossy compression that can be used on photographic images
 Group:         System/Libraries
 Vendor:        openmamba
@@ -12,8 +12,13 @@ Source:        http://downloads.webmproject.org/releases/webp/libwebp-%{version}
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libGL-devel
+BuildRequires: libfreeglut-devel
+BuildRequires: libjbig-devel
 BuildRequires: libjpeg-devel
+BuildRequires: liblzma-devel
 BuildRequires: libpng-devel
+BuildRequires: libtiff-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
@@ -50,6 +55,7 @@ This package contains utility applications for %{name}.
 %build
 ./autogen.sh
 %configure \
+  --enable-libwebpdemux \
   --with-pnglibdir=%{_libdir} \
   --disable-static
 
@@ -67,23 +73,33 @@ This package contains utility applications for %{name}.
 
 %files
 %defattr(-,root,root)
-%{_libdir}/*.so.*
+%{_libdir}/libwebp.so.*
+%{_libdir}/libwebpdemux.so.*
 %doc AUTHORS COPYING
 #ChangeLog NEWS README
 
 %files devel
 %defattr(-,root,root)
-%{_includedir}/webp
-%{_libdir}/*.la
-%{_libdir}/*.so
-%{_libdir}/pkgconfig/*.pc
+%dir %{_includedir}/webp
+%{_includedir}/webp/*.h
+%{_libdir}/libwebp.la
+%{_libdir}/libwebp.so
+%{_libdir}/libwebpdemux.la
+%{_libdir}/libwebpdemux.so
+%{_libdir}/pkgconfig/libwebp.pc
+%{_libdir}/pkgconfig/libwebpdemux.pc
 
 %files tools
 %defattr(-,root,root)
-%{_bindir}/*
+%{_bindir}/cwebp
+%{_bindir}/dwebp
+%{_bindir}/vwebp
 %{_mandir}/man1/*
 
 %changelog
+* Tue Nov 01 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 0.5.1-2mamba
+- rebuilt with --enable-libwebpdemux
+
 * Sat Jul 23 2016 Automatic Build System <autodist@mambasoft.it> 0.5.1-1mamba
 - automatic version update by autodist