diff --git a/libportmidi.spec b/libportmidi.spec
index 527eba5..c703a30 100644
--- a/libportmidi.spec
+++ b/libportmidi.spec
@@ -1,21 +1,20 @@
 Name:          libportmidi
-Version:       217
-Release:       2mamba
+Version:       235.1
+Release:       1mamba
 Summary:       A library supporting real-time input and output of MIDI data using a system-independent interface
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://portmedia.sourceforge.net/portmidi/
-Source:        http://downloads.sourceforge.net/project/portmedia/portmidi/%{version}/portmidi-src-%{version}.zip
+URL:           https://github.com/mixxxdj/portmidi
+Source:        https://github.com/mixxxdj/portmidi.git/%{version}/portmidi-%{version}.tar.bz2
+#Source:        http://downloads.sourceforge.net/project/portmedia/portmidi/%{version}/portmidi-src-%{version}.zip
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libalsa-devel
 ## AUTOBUILDREQ-END
-BuildRequires: java-gcj-compat
-Provides:      libporttime.so
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+#Provides:      libporttime.so
 
 %description
 PortMidi is a library for software developers. It supports real-time input and output of MIDI data using a system-independent interface. PortMidi runs on Windows (using MME), Macintosh (using CoreMIDI), and Linux (using ALSA).
@@ -27,37 +26,35 @@ Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description devel
 PortMidi is a library for software developers. It supports real-time input and output of MIDI data using a system-independent interface. PortMidi runs on Windows (using MME), Macintosh (using CoreMIDI), and Linux (using ALSA).
-
 This package contains static libraries and header files needed for development.
 
+%debug_package
+
 %prep
-%setup -q -n portmidi
-sed -i "s|/usr/local|/usr|" \
-   pm_common/CMakeLists.txt \
-   pm_dylib/CMakeLists.txt \
-   pm_java/CMakeLists.txt
+%setup -q -n portmidi-%{version}
+#sed -i "s|/usr/local|/usr|" \
+#   pm_common/CMakeLists.txt \
+#   pm_dylib/CMakeLists.txt \
+#   pm_java/CMakeLists.txt
+
+sed -i "s|lib/cmake/PortMidi|%{_lib}/cmake/PortMidi|" CMakeLists.txt
 
 %build
-%cmake \
-   -DCMAKE_ARCHIVE_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release \
-   -DCMAKE_LIBRARY_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release \
-   -DCMAKE_RUNTIME_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release
+%cmake -d build
 
-#-d build \
+#   -DCMAKE_ARCHIVE_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release \
+#   -DCMAKE_LIBRARY_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release \
+#   -DCMAKE_RUNTIME_OUTPUT_DIRECTORY:STRING=%{_builddir}/portmidi/Release
 
-sed -i "s|pm_java/pm_java|pm_java|" pm_java/CMakeFiles/pmdefaults_target.dir/build.make
+#sed -i "s|pm_java/pm_java|pm_java|" pm_java/CMakeFiles/pmdefaults_target.dir/build.make
 
-%make -j1
+%make
+#-j1
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall LIBRARY_DESTINATION=%{_libdir}
-
-# remove duplicated library
-rm -f %{buildroot}%{_libdir}/libportmidi_s.so
-
-# add libporttime as a link (required by denemo 1.0, see https://bugs.archlinux.org/task/21528)
-ln -s libportmidi.so %{buildroot}%{_libdir}/libporttime.so
+%makeinstall -C build
+#LIBRARY_DESTINATION=%{_libdir}
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -68,19 +65,26 @@ ln -s libportmidi.so %{buildroot}%{_libdir}/libporttime.so
 
 %files
 %defattr(-,root,root)
-%{_bindir}/pmdefaults
-%{_libdir}/libpmjni.so
+#%{_bindir}/pmdefaults
+#%{_libdir}/libpmjni.so
 %{_libdir}/libportmidi.so
 %{_libdir}/libporttime.so
-%{_datadir}/java/pmdefaults.jar
-%doc README.txt
+#%{_datadir}/java/pmdefaults.jar
+#%doc license.txt
 
 %files devel
 %defattr(-,root,root)
+%{_includedir}/pmutil.h
 %{_includedir}/portmidi.h
 %{_includedir}/porttime.h
+%{_libdir}/pkgconfig/portmidi.pc
+%dir %{_libdir}/cmake/PortMidi
+%{_libdir}/cmake/PortMidi/PortMidi*.cmake
 
 %changelog
+* Sat Jul 17 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 235.1-1mamba
+- update to 235.1
+
 * Tue Apr 09 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 217-2mamba
 - added libporttime as a symlink to libportmidi, required by denemo