diff --git a/.gitignore b/.gitignore
index e388825..b7e2a7e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@
 /synthv1-0.8.6.tar.gz
 /synthv1-0.9.2.tar.gz
 /synthv1-0.9.10.tar.gz
+/synthv1-0.9.13.tar.gz
diff --git a/qmake-qt5.sh b/qmake-qt5.sh
deleted file mode 100755
index 09d9fe6..0000000
--- a/qmake-qt5.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-/usr/bin/qmake-qt5 \
-  "$@" \
-  QMAKE_CFLAGS_RELEASE="${CFLAGS}" \
-  QMAKE_CXXFLAGS_RELEASE="${CXXFLAGS}" \
-  QMAKE_LFLAGS_RELEASE="${LDFLAGS}" \
-  QMAKE_STRIP=
diff --git a/sources b/sources
index 167b1c2..9d7c710 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (synthv1-0.9.10.tar.gz) = 83cb2c2bddfe009fe51735f2564d2502ab701fbb1ec6dbe5fc082c1550102b8aed2bbb9ae7abd4df22cb7614a3f6f7dcb06fd13f47ea00961f5d8ad243e5b849
+SHA512 (synthv1-0.9.13.tar.gz) = 5a6c2ad66ce8dccc58ede795822b489319bb44f0b9afaa9ed57f21e55552eff5b838af29e66b2c71d8d23829de94c02975d64039ae0c92cee7efadc26f6363d9
diff --git a/synthv1-0.7.1-lib64.patch b/synthv1-0.7.1-lib64.patch
deleted file mode 100644
index 41abd70..0000000
--- a/synthv1-0.7.1-lib64.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- synthv1-0.7.1/configure.ac.orig	2015-11-20 06:27:01.366916885 +0100
-+++ synthv1-0.7.1/configure.ac	2015-11-20 07:02:02.997034459 +0100
-@@ -187,7 +187,7 @@ ac_arch=`uname -m`
- # Check for install paths and alternatives...
- ac_libdirs="lib"
- 
--if test "x$ac_arch" = "xx86_64"; then
-+if test -d $X/lib64; then
-    ac_libdirs="$ac_libdirs lib64"
- fi
- 
diff --git a/synthv1-nostrip.patch b/synthv1-nostrip.patch
new file mode 100644
index 0000000..0baa08f
--- /dev/null
+++ b/synthv1-nostrip.patch
@@ -0,0 +1,42 @@
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index 46d1b61..48e12f2 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -165,13 +165,6 @@ if (CONFIG_LIBLO)
+ endif ()
+ 
+ 
+-if (UNIX AND NOT APPLE AND NOT CONFIG_DEBUG)
+-  add_custom_command(TARGET ${NAME}_lv2  POST_BUILD
+-    COMMAND strip lib${NAME}_lv2.so)
+-  add_custom_command(TARGET ${NAME}_jack POST_BUILD
+-    COMMAND strip ${NAME}_jack)
+-endif ()
+-
+ 
+ if (UNIX AND NOT APPLE)
+   if (CONFIG_PREFIX MATCHES $ENV{HOME})
+diff --git a/src/src_jack.pro b/src/src_jack.pro
+index bbfe01d..6c6f298 100644
+--- a/src/src_jack.pro
++++ b/src/src_jack.pro
+@@ -79,7 +79,6 @@ unix {
+ 	mimetypes_scalable.path = $${DATADIR}/icons/hicolor/scalable/mimetypes
+ 	mimetypes_scalable.files += mimetypes/application-x-$${NAME}-preset.svg
+ 
+-	CONFIG(release, debug|release):QMAKE_POST_LINK += strip $(TARGET)
+ }
+ 
+ QT += widgets xml
+diff --git a/src/src_lv2.pro b/src/src_lv2.pro
+index 72c798d..83e7c7b 100644
+--- a/src/src_lv2.pro
++++ b/src/src_lv2.pro
+@@ -66,7 +66,6 @@ unix {
+ 		$${TARGET_LV2UI}.ttl \
+ 		$${NAME}.lv2/manifest.ttl
+ 
+-	CONFIG(release, debug|release)::QMAKE_POST_LINK += strip $(TARGET);
+ 	QMAKE_POST_LINK += $${QMAKE_COPY} -vp $(TARGET) $${TARGET_LV2}.so
+ 
+ 	QMAKE_CLEAN += $${TARGET_LV2}.so
diff --git a/synthv1.spec b/synthv1.spec
index 2330921..d176267 100644
--- a/synthv1.spec
+++ b/synthv1.spec
@@ -1,11 +1,11 @@
 Summary:       A 4-oscillator subtractive polyphonic synthesizer
 Name:          synthv1
-Version:       0.9.10
-Release:       2%{?dist}
-URL:           http://sourceforge.net/projects/%{name}
-Source0:       http://downloads.sourceforge.net/project/%{name}/0.1.0/%{name}-%{version}.tar.gz
-Source1:       qmake-qt5.sh
-Patch0:        synthv1-0.7.1-lib64.patch
+Version:       0.9.13
+Release:       1%{?dist}
+URL:           https://%{name}.sourceforge.io/
+Source0:       https://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
+# Do not strip executables
+Patch0:        synthv1-nostrip.patch
 License:       GPLv2+
 Requires:      hicolor-icon-theme
 
@@ -14,10 +14,9 @@ BuildRequires: jack-audio-connection-kit-devel
 BuildRequires: qt5-qtbase-devel
 BuildRequires: qt5-linguist
 BuildRequires: lv2-devel >= 1.2.0
-BuildRequires: autoconf
-BuildRequires: automake
 BuildRequires: desktop-file-utils
 BuildRequires: libsndfile-devel
+BuildRequires: liblo-devel
 
 %description
 %{name} is a 4-oscillator subtractive polyphonic synthesizer with stereo fx.
@@ -25,37 +24,19 @@ BuildRequires: libsndfile-devel
 %package -n lv2-%{name}
 Summary:       An LV2 port of synthv1
 Requires:      lv2
-Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description -n lv2-%{name}
 An LV2 plugin of the synthv1 subtractive synthesizer
 
 %prep
-%setup -q
-%patch0 -p1
-
-# configure hard-codes prepending searches of /usr (already implicit, causes problems),
-# and /usr/local (not needed here), so force it's non-use
-sed -i.ac_with_paths -e "s|^ac_with_paths=.*|ac_with_paths=|g" configure configure.ac
-
-autoconf -f
-sed -i -e 's|-msse -mfpmath=sse -ffast-math|%{optflags} -fPIC|' synthv1_lv2.pro
-sed -i -e 's|-msse -mfpmath=sse -ffast-math|%{optflags} -fPIC|' synthv1_jack.pro
+%autosetup -p1
 
 %build
-
-autoreconf
-
-# force use of custom/local qmake, to inject proper build flags (above)
-install -m755 -D %{SOURCE1} bin/qmake-qt5
-PATH=`pwd`/bin:%{_qt5_bindir}:$PATH; export PATH
-
-export QTDIR=%{_qt5_prefix}
-%configure --enable-qt5
-make
+%configure
+%make_build
 
 %install
-make DESTDIR=%{buildroot} install
+%make_install
 chmod +x %{buildroot}%{_libdir}/lv2/%{name}.lv2/%{name}.so
 install -m 0644 src/%{name}.desktop %{buildroot}%{_datadir}/applications/%{name}.desktop
 
@@ -70,12 +51,15 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/%{name}.desktop
 %{_datadir}/mime/packages/%{name}.xml
 %{_datadir}/man/man1/%{name}*
 %{_datadir}/metainfo/%{name}.appdata.xml
-%{_libdir}/lib%{name}*.so*
 
 %files -n lv2-%{name}
 %{_libdir}/lv2/%{name}.lv2/
 
 %changelog
+* Sat Apr 18 2020 Guido Aulisi <guido.aulisi@gmail.com> - 0.9.13-1
+- Update to 0.9.13
+- Some spec cleanup
+
 * Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.10-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild