diff --git a/mftrace.spec b/mftrace.spec
index 651f022..5b0b660 100644
--- a/mftrace.spec
+++ b/mftrace.spec
@@ -1,5 +1,5 @@
 Name:          mftrace
-Version:       1.2.19
+Version:       1.2.20
 Release:       1mamba
 Summary:       A small Python program that lets you trace a TeX bitmap font into a PFA, PFB or TTF font
 Group:         System/Tools
@@ -9,13 +9,19 @@ Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://lilypond.org/mftrace/
 Source:        http://lilypond.org/download/sources/mftrace/mftrace-%{version}.tar.gz
 License:       GPL
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
-BuildRequires: python-devel
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+## AUTOBUILDREQ-END
+BuildRequires: python3-devel
 BuildRequires: potrace
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 A small Python program that lets you trace a TeX bitmap font into a PFA or PFB font (A PostScript Type1 Scalable Font) or TTF (TrueType) font.
 
+%debug_package
+
 %prep
 %setup -q
 
@@ -25,7 +31,7 @@ A small Python program that lets you trace a TeX bitmap font into a PFA or PFB f
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall
+%makeinstall MANPAGES=mftrace.1
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -34,14 +40,18 @@ A small Python program that lets you trace a TeX bitmap font into a PFA or PFB f
 %defattr(-,root,root)
 %{_bindir}/gf2pbm
 %{_bindir}/mftrace
-%{_mandir}/man1/mftrace.1.gz
 %{_datadir}/mftrace/afm.py
-%{_datadir}/mftrace/afm.pyc
 %{_datadir}/mftrace/tfm.py
-%{_datadir}/mftrace/tfm.pyc
+%dir %{_datadir}/mftrace/__pycache__
+%{_datadir}/mftrace/__pycache__/afm.cpython-*.pyc
+%{_datadir}/mftrace/__pycache__/tfm.cpython-*.pyc
+%{_mandir}/man1/mftrace.1*
 %doc COPYING ChangeLog README.texi README.txt
 
 %changelog
+* Mon Apr 20 2020 Automatic Build System <autodist@mambasoft.it> 1.2.20-1mamba
+- automatic version update by autodist
+
 * Fri Apr 06 2018 Automatic Build System <autodist@mambasoft.it> 1.2.19-1mamba
 - automatic version update by autodist