diff --git a/libvorbis-1.3.7-soname.patch b/libvorbis-1.3.7-soname.patch
new file mode 100644
index 0000000..7d87664
--- /dev/null
+++ b/libvorbis-1.3.7-soname.patch
@@ -0,0 +1,20 @@
+--- libvorbis-1.3.7/lib/CMakeLists.txt.orig	2020-04-15 18:20:52.000000000 +0200
++++ libvorbis-1.3.7/lib/CMakeLists.txt	2023-05-09 12:34:57.295329566 +0200
+@@ -79,11 +79,14 @@
+     add_library(vorbisfile ${VORBISFILE_SOURCES})
+ 
+     get_version_info(VORBIS_VERSION_INFO "V_LIB_CURRENT" "V_LIB_AGE" "V_LIB_REVISION")
+-    set_target_properties(vorbis PROPERTIES SOVERSION ${VORBIS_VERSION_INFO})
++    set_target_properties(vorbis PROPERTIES SOVERSION "0")
++    set_target_properties(vorbis PROPERTIES VERSION ${VORBIS_VERSION_INFO})
+     get_version_info(VORBISENC_VERSION_INFO "VE_LIB_CURRENT" "VE_LIB_AGE" "VE_LIB_REVISION")
+-    set_target_properties(vorbisenc PROPERTIES SOVERSION ${VORBISENC_VERSION_INFO})
++    set_target_properties(vorbisenc PROPERTIES SOVERSION "2")
++    set_target_properties(vorbisenc PROPERTIES VERSION ${VORBISENC_VERSION_INFO})
+     get_version_info(VORBISFILE_VERSION_INFO "VF_LIB_CURRENT" "VF_LIB_AGE" "VF_LIB_REVISION")
+-    set_target_properties(vorbisfile PROPERTIES SOVERSION ${VORBISFILE_VERSION_INFO})
++    set_target_properties(vorbisfile PROPERTIES SOVERSION "3")
++    set_target_properties(vorbisfile PROPERTIES VERSION ${VORBISFILE_VERSION_INFO})
+ 
+     target_include_directories(vorbis
+         PUBLIC
diff --git a/libvorbis.spec b/libvorbis.spec
index 8ef14cd..4c966b6 100644
--- a/libvorbis.spec
+++ b/libvorbis.spec
@@ -1,21 +1,21 @@
 Name:          libvorbis
 Version:       1.3.7
-Release:       1mamba
+Release:       2mamba
 Summary:       A general purpose public domain audio and music encoding format
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Aleph0 <aleph0@openmamba.org>
-URL:           http://www.vorbis.com
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://xiph.org/vorbis/
 Source:        http://downloads.xiph.org/releases/vorbis/libvorbis-%{version}.tar.gz
 Patch0:        libvorbis-1.3.4-pkg-config.patch
+Patch1:        libvorbis-1.3.7-soname.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libogg-devel
 ## AUTOBUILDREQ-END
-BuildRequires: pkgconfig
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+BuildRequires: cmake
 
 %description
 The libvorbis package contains a general purpose audio and music encoding format.
@@ -24,37 +24,33 @@ This is useful for creating (encoding) and playing (decoding) sound in a public
 %package devel
 Summary:       Static libraries and headers for %{name}
 Group:         Development/Libraries
-Requires:      libogg-devel
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description devel
 The libvorbis package contains a general purpose audio and music encoding format.
 This is useful for creating (encoding) and playing (decoding) sound in a public domain format.
-
-This package contains static libraries and header files need for development.
+This package contains static libraries and header files needed for development.
 
 %debug_package
 
 %prep
 %setup -q
 #%patch0 -p1
+%patch 1 -p1
 
 %build
-%configure
+%cmake -d build
+
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-rm -fr pckdocs
-%makeoldinstall \
-   docdir=%{_builddir}/%{name}-%{version}/pckdocs
-
-rm -f %{buildroot}%{_libdir}/*.a
+%makeinstall -C build
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post   -p /sbin/ldconfig
+%post -p /sbin/ldconfig
 %postun -p /sbin/ldconfig
 
 %files
@@ -66,21 +62,23 @@ rm -f %{buildroot}%{_libdir}/*.a
 
 %files devel
 %defattr(-,root,root)
-%{_datadir}/aclocal/*
+%dir %{_includedir}/vorbis
+%{_includedir}/vorbis/*.h
 %{_libdir}/libvorbis.so
 %{_libdir}/libvorbisenc.so
 %{_libdir}/libvorbisfile.so
-%{_libdir}/libvorbis.la
-%{_libdir}/libvorbisenc.la
-%{_libdir}/libvorbisfile.la
 %{_libdir}/pkgconfig/vorbis.pc
 %{_libdir}/pkgconfig/vorbisenc.pc
 %{_libdir}/pkgconfig/vorbisfile.pc
-%dir %{_includedir}/vorbis
-%{_includedir}/vorbis/*.h
-%doc pckdocs/*
+%dir %{_libdir}/cmake/Vorbis
+%{_libdir}/cmake/Vorbis/Vorbis*.cmake
+
+#%doc pckdocs/*
 
 %changelog
+* Tue May 09 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.7-2mamba
+- rebuilt with cmake
+
 * Wed Jul 22 2020 Automatic Build System <autodist@mambasoft.it> 1.3.7-1mamba
 - automatic version update by autodist