diff --git a/GraphicsMagick.spec b/GraphicsMagick.spec
index 205c5c0..b42e905 100644
--- a/GraphicsMagick.spec
+++ b/GraphicsMagick.spec
@@ -1,5 +1,5 @@
 Name:          GraphicsMagick
-Version:       1.3.20
+Version:       1.3.24
 Release:       1mamba
 Summary:       The swiss army knife of image processing
 Group:         Applications/Graphics
@@ -10,7 +10,6 @@ URL:           http://www.graphicsmagick.org/
 Source:        http://downloads.sourceforge.net/sourceforge/graphicsmagick/GraphicsMagick-%{version}.tar.bz2
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: ghostscript-devel
 BuildRequires: glibc-devel
 BuildRequires: libICE-devel
 BuildRequires: libSM-devel
@@ -18,6 +17,7 @@ BuildRequires: libX11-devel
 BuildRequires: libXau-devel
 BuildRequires: libXdmcp-devel
 BuildRequires: libXext-devel
+BuildRequires: libbsd-devel
 BuildRequires: libbzip2-devel
 BuildRequires: libfreetype-devel
 BuildRequires: libgcc
@@ -31,11 +31,13 @@ BuildRequires: libjpeg-devel
 BuildRequires: liblcms2-devel
 BuildRequires: libltdl-devel
 BuildRequires: liblzma-devel
+BuildRequires: libpcre-devel
 BuildRequires: libperl
 BuildRequires: libpng-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: libtiff-devel
 BuildRequires: libuuid-devel
+BuildRequires: libwebp-devel
 BuildRequires: libwmf-devel
 BuildRequires: libxcb-devel
 BuildRequires: libxml2-devel
@@ -54,6 +56,7 @@ BuildRequires: libgimp-devel
 BuildRequires: libsane-backends
 BuildRequires: wget
 BuildRequires: ghostscript-fonts
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -66,12 +69,22 @@ Image processing operations are available from the command line, as well as thro
 Extensions are available from third-parties to support programming in Python, Tcl, and Ruby.
 With some modification, language extensions for ImageMagick may be used.
 
-%package devel
+%package -n lib%{name}
+Summary:       Libraries provided by %{name}
+Group:         Development/Libraries
+
+%description -n lib%{name}
+GraphicsMagick is the swiss army knife of image processing.
+This package contains the shared libraries.
+
+%package -n lib%{name}-devel
 Summary:       Devel package for %{name}
 Group:         Development/Libraries
-Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      %{name}-devel
+Obsoletes:     %{name}-devel
 
-%description devel
+%description -n lib%{name}-devel
 GraphicsMagick is the swiss army knife of image processing.
 This package contains static libraries and header files need for development.
 
@@ -147,14 +160,24 @@ chmod 755 %{buildroot}%{perl_vendorarch}/auto/Graphics/Magick/Magick.so
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post   -p /sbin/ldconfig
-%postun -p /sbin/ldconfig
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
 
 %files
 %defattr(-,root,root)
 %{_bindir}/gm
 %dir %{_datadir}/GraphicsMagick-%{version}/config
 %{_datadir}/GraphicsMagick-%{version}/config/*.mgk
+%{_docdir}/GraphicsMagick/ChangeLog*
+%{_docdir}/GraphicsMagick/Copyright.txt
+%{_docdir}/GraphicsMagick/NEWS.txt
+%{_mandir}/man1/gm.*
+%{_mandir}/man4/miff.*
+%{_mandir}/man5/quantize.*
+%doc TODO.txt README.txt
+
+%files -n lib%{name}
+%defattr(-,root,root)
 %dir %{_libdir}/GraphicsMagick-%{version}
 %dir %{_libdir}/GraphicsMagick-%{version}/config
 %{_libdir}/GraphicsMagick-%{version}/config/*.mgk
@@ -165,15 +188,8 @@ chmod 755 %{buildroot}%{perl_vendorarch}/auto/Graphics/Magick/Magick.so
 %{_libdir}/GraphicsMagick-%{version}/modules-Q8/filters/*.la
 %{_libdir}/GraphicsMagick-%{version}/modules-Q8/filters/*.so
 %{_libdir}/lib*.so.*
-%{_docdir}/GraphicsMagick/ChangeLog*
-%{_docdir}/GraphicsMagick/Copyright.txt
-%{_docdir}/GraphicsMagick/NEWS.txt
-%{_mandir}/man1/gm.*
-%{_mandir}/man4/miff.*
-%{_mandir}/man5/quantize.*
-%doc TODO.txt README.txt
 
-%files devel
+%files -n lib%{name}-devel
 %defattr(-,root,root)
 %{_bindir}/GraphicsMagick++-config
 %{_bindir}/GraphicsMagick-config
@@ -202,6 +218,10 @@ chmod 755 %{buildroot}%{perl_vendorarch}/auto/Graphics/Magick/Magick.so
 %defattr(-,root,root)
 
 %changelog
+* Mon Aug 01 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.24-1mamba
+- update to 1.3.24
+- added library subpackage
+
 * Mon Sep 01 2014 Stefano Cotta Ramusino <stefano.cotta@openmamba.org> 1.3.20-1mamba
 - update to 1.3.20