diff --git a/lsof.spec b/lsof.spec
index ef72b68..91fa3fd 100644
--- a/lsof.spec
+++ b/lsof.spec
@@ -1,5 +1,5 @@
 Name:         lsof
-Version:      4.89
+Version:      4.90
 Release:      1mamba
 Summary:      Lists open files for running UNIX processes
 Group:        System/Tools
@@ -7,11 +7,16 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:     Aleph0 <aleph0@openmamba.org>
 URL:          http://people.freebsd.org/~abe/
-Source:       ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_%{version}.tar.bz2
+Source:       https://fossies.org/linux/misc/lsof_%{version}_src.tar.bz2
 #Patch from ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/patches/%{version}/linux.patch
 Patch:        %{name}-4.77-linux.patch
 License:      no OSI Approved
 BuildRoot:    %{_tmppath}/%{name}-%{version}-root
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libselinux-devel
+BuildRequires: libtirpc-devel
+## AUTOBUILDREQ-END
 
 %description
 Lsof is a Unix-specific diagnostic tool.
@@ -20,14 +25,11 @@ It lists information about any files that are open by processes currently runnin
 It can also list communications open by each process.
 
 %prep
-%setup -q -n %{name}_%{version}
-tar -xf %{name}_%{version}_src.tar
-cd %{name}_%{version}_src/dialects/linux
+%setup -q -n %{name}_%{version}_src
+#cd %{name}_%{version}_src/dialects/linux
 #% patch -p2
 
 %build
-cd %{name}_%{version}_src
-
 chmod 644 dialects/linux/machine.h &&
 echo "
 #undef HASSECURITY
@@ -51,7 +53,6 @@ make DEBUG="" CDEF="%{optflags}" CFGL="-L./lib -llsof -lselinux -ltirpc"
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-cd %{name}_%{version}_src
 
 install -D -m755 %{name} %{buildroot}%{_bindir}/%{name}
 install -D -m644 %{name}.8 %{buildroot}%{_mandir}/man8/%{name}.8
@@ -69,9 +70,12 @@ done
 %defattr(-,root,root)
 %{_bindir}/%{name}
 %{_mandir}/man8/%{name}.*
-%doc %{name}_%{version}_src/%{name}_docs/*
+%doc %{name}_docs/*
 
 %changelog
+* Wed Mar 21 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 4.90-1mamba
+- update to 4.90
+
 * Sat Jul 18 2015 Automatic Build System <autodist@mambasoft.it> 4.89-1mamba
 - automatic version update by autodist