diff --git a/lrzsz.spec b/lrzsz.spec
index 51bcead..9520726 100644
--- a/lrzsz.spec
+++ b/lrzsz.spec
@@ -1,6 +1,6 @@
 Name:          lrzsz
 Version:       0.12.20
-Release:       3mamba
+Release:       4mamba
 Summary:       An open source x/y/zmodem implementation
 Group:         Applications/Communication
 Vendor:        openmamba
@@ -12,50 +12,57 @@ Patch0:        %{name}-0.12.20-fix_destdir.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libnsl-devel
 ## AUTOBUILDREQ-END
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 lrzsz is a unix communication package providing the  XMODEM, YMODEM ZMODEM file transfer protocols. lrzsz is a heavily rehacked version of the last public domain release of Omen Technologies rzsz package, and is now free software and released under the  GNU General Public Licence.
 
+%debug_package
+
 %prep
 %setup -q
 %patch0 -p1
 
 %build
-%configure
+%configure \
+   --disable-pubdir \
+   --enable-syslog \
+   --program-transform-name=s/l//
+
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall
-for a in rb rx rz sb sx sz; do
-   ln -s l$a %{buildroot}%{_bindir}/$a
-done
+
+#for a in rb rx rz sb sx sz; do
+#   ln -s l$a %{buildroot}%{_bindir}/$a
+#done
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
 %files
 %defattr(-,root,root)
-%{_bindir}/lrb
-%{_bindir}/lrx
-%{_bindir}/lrz
-%{_bindir}/lsb
-%{_bindir}/lsx
-%{_bindir}/lsz
 %{_bindir}/rb
 %{_bindir}/rx
 %{_bindir}/rz
 %{_bindir}/sb
 %{_bindir}/sx
 %{_bindir}/sz
-%{_mandir}/man1/lrz.1.gz
-%{_mandir}/man1/lsz.1.gz
-%doc AUTHORS COPYING ChangeLog NEWS README README.cvs README.gettext
-%doc README.isdn4linux README.tests THANKS TODO
+%{_mandir}/man1/rz.1*
+%{_mandir}/man1/sz.1*
+%doc AUTHORS COPYING
+#ChangeLog NEWS README README.cvs README.gettext
+#%doc README.isdn4linux README.tests THANKS TODO
 
 %changelog
+* Thu Dec 31 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.12.20-4mamba
+- rebuilt with --program-transform-name=s/l// to fix conflict with lrzip; added debug package
+
 * Sun Aug 25 2013 Automatic Build System <autodist@mambasoft.it> 0.12.20-3mamba
 - automatic rebuild by autodist