diff --git a/README.md b/README.md
index 86de50a..6f65b92 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ghc-memory
 
+GHC memory: memory and related abstraction stuff.
+
diff --git a/ghc-memory-0.18.0-i386-Word64.patch b/ghc-memory-0.18.0-i386-Word64.patch
new file mode 100644
index 0000000..ba89e34
--- /dev/null
+++ b/ghc-memory-0.18.0-i386-Word64.patch
@@ -0,0 +1,23 @@
+--- memory-0.17.0/Data/Memory/Internal/CompatPrim64.hs.orig	2019-09-02 10:59:04.000000000 +0800
++++ memory-0.17.0/Data/Memory/Internal/CompatPrim64.hs	2023-02-17 02:13:44.131991990 +0800
+@@ -148,14 +148,14 @@
+ w64# w _ _ = w
+ 
+ #elif WORD_SIZE_IN_BITS == 32
+-import GHC.IntWord64
++import GHC.Exts
+ import GHC.Prim (Word#)
+ 
+-timesWord64# :: Word64# -> Word64# -> Word64#
+-timesWord64# a b =
+-    let !ai = word64ToInt64# a
+-        !bi = word64ToInt64# b
+-     in int64ToWord64# (timesInt64# ai bi)
++-- timesWord64# :: Word64# -> Word64# -> Word64#
++-- timesWord64# a b =
++--     let !ai = word64ToInt64# a
++--         !bi = word64ToInt64# b
++--      in int64ToWord64# (timesInt64# ai bi)
+ 
+ w64# :: Word# -> Word# -> Word# -> Word64#
+ w64# _ hw lw =
diff --git a/ghc-memory.spec b/ghc-memory.spec
new file mode 100644
index 0000000..563ea25
--- /dev/null
+++ b/ghc-memory.spec
@@ -0,0 +1,81 @@
+%define ghc_ver %(ghc --numeric-version)
+%define pkg_name %(echo %name | sed "s|^ghc-||")
+
+Name:          ghc-memory
+Version:       0.18.0
+Release:       1mamba
+Summary:       GHC memory: memory and related abstraction stuff
+Group:         Development/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://hackage.haskell.org/package/%{pkg_name}
+Source:        https://hackage.haskell.org/package/memory-%{version}/memory-%{version}.tar.gz
+Patch0:        ghc-memory-0.18.0-i386-Word64.patch
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+BuildRequires: ghc-basement-devel
+BuildRequires: ghc-libs
+BuildRequires: glibc-devel
+BuildRequires: libgmp-devel
+## AUTOBUILDREQ-END
+BuildRequires: ghc
+BuildRequires: ghc-rpm-macros
+Requires:      ghc = %{ghc_ver}
+
+%description
+%{summary}.
+
+%package devel
+Summary:        Haskell %{pkg_name} library development files
+Provides:       %{name}-static = %{?epoch:%epoch:}%{version}-%{release}
+Provides:       %{name}-static%{?_isa} = %{?epoch:%epoch:}%{version}-%{release}
+%if %{defined ghc_version}
+Requires:       ghc = %{ghc_version}
+%endif
+Requires:       %{name}%{?_isa} = %{?epoch:%epoch:}%{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 memory-%{version}
+%patch 0 -p1 -b .i386-Word64
+
+%build
+%ghc_lib_build
+
+%install
+%ghc_lib_install
+
+rm -f %{buildroot}%{_ghclicensedir}/%{name}/LICENSE
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -f %{name}.files
+%defattr(-,root,root)
+%license LICENSE
+
+%files devel -f %{name}-devel.files
+%defattr(-,root,root)
+#%doc CHANGELOG.markdown README.markdown
+
+%if %{with haddock}
+%files doc -f %{name}-doc.files
+%defattr(-,root,root)
+%license LICENSE
+%endif
+
+%changelog
+* Sun Dec 03 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.18.0-1mamba
+- package created using the webbuild interface