diff --git a/ghc-void.spec b/ghc-void.spec
index 6b67b1c..53a2585 100644
--- a/ghc-void.spec
+++ b/ghc-void.spec
@@ -1,64 +1,83 @@
 %define ghc_ver %(ghc --numeric-version)
-%define pkgname void
+%define pkg_name void
 
 Name:          ghc-void
 Version:       0.7.3
-Release:       1mamba
+Release:       2mamba
 Summary:       GHC library: A Haskell 98 logically uninhabited data type
 Group:         Development/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Davide Madrisan <davide.madrisan@gmail.com>
-URL:           https://hackage.haskell.org/package/%{pkgname}
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://hackage.haskell.org/package/%{pkg_name}
 Source:        http://hackage.haskell.org/package/void-%{version}/void-%{version}.tar.gz
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
-## AUTOBUILDREQ-END
+#ghc-devel(base-4.17.2.1): unidentified build requirement
 BuildRequires: ghc
+BuildRequires: glibc-devel
+BuildRequires: libgmp-devel
+## AUTOBUILDREQ-END
+BuildRequires: ghc >= 9.4.8
+BuildRequires: ghc-rpm-macros
 BuildRequires: hscolour
 BuildRequires: ghc-semigroups
 Requires:      ghc = %{ghc_ver}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 A Haskell 98 logically uninhabited data type, used to indicate that a given term should not exist.
 
+%package devel
+Summary:        Haskell %{pkg_name} library development files
+Provides:       %{name}-static = %{version}-%{release}
+Provides:       %{name}-static%{?_isa} = %{version}-%{release}
+%if %{defined ghc_version}
+Requires:       ghc = %{ghc_version}
+%endif
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+	
+%description devel
+This package provides the Haskell %{pkg_name} library development files.
+	
+%if %{with haddock}
+%package doc
+Summary:        Haskell %{pkg_name} library documentation
+Requires:       ghc-filesystem
+	
+%description doc
+This package provides the Haskell %{pkg_name} library documentation.
+%endif
+
 %prep
 %setup -q -n void-%{version}
 
 %build
-runghc Setup.lhs configure -v2 \
-   --prefix=%{_prefix} \
-   --libdir=%{_libdir} \
-   --libexecdir=%{_libexecdir} \
-   --docdir=%{_docdir}/%{name}-%{version}
-
-runghc Setup.lhs build
-runghc Setup.lhs haddock --executable --html-location=URL --hyperlink-source
+%ghc_lib_build
 
 %install
-[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-runghc Setup.lhs copy --destdir=%{buildroot}
-runghc Setup.lhs register \
-   --gen-pkg-config="%{buildroot}%{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}/%{pkgname}-%{version}.conf"
+%ghc_lib_install
+
+rm -f %{buildroot}%{_ghclicensedir}/%{name}/LICENSE
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post
-ghc-pkg register %{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}/%{pkgname}-%{version}.conf &>/dev/null || :
-
-%preun
-ghc-pkg unregister %{pkgname}-%{version} &>/dev/null || :
-
-%files
+%files -f %{name}.files
 %defattr(-,root,root)
-%{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}
-%dir %{_docdir}/%{name}-%{version}
-%{_docdir}/%{name}-%{version}/LICENSE
-%{_docdir}/%{name}-%{version}/html
+%license LICENSE
+
+%files devel -f %{name}-devel.files
+%doc CHANGELOG.markdown README.markdown
+
+%if %{with haddock}	
+%files doc -f %{name}-doc.files
+%license LICENSE
+%endif
 
 %changelog
+* Sun Nov 12 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.7.3-2mamba
+- rebuilt with ghc 9.4.8
+
 * Thu Feb 04 2021 Automatic Build System <autodist@mambasoft.it> 0.7.3-1mamba
 - automatic version update by autodist