diff --git a/rx-libxcrypt/libxcrypt.spec b/rx-libxcrypt/libxcrypt.spec
new file mode 100644
index 0000000..7f64538
--- /dev/null
+++ b/rx-libxcrypt/libxcrypt.spec
@@ -0,0 +1,180 @@
+# Shared object version of libcrypt.
+%global soc 1
+%global sol 1
+%global sof 0
+%global sov %{soc}.%{sol}.%{sof}
+
+# Add generation of HMAC checksums of the final stripped
+# binaries.  %%define with lazy globbing is used here
+# intentionally, because using %%global does not work.
+%define __spec_install_post                                 \
+%{?__debug_package:%{__debug_install_post}}                 \
+%{__arch_install_post}                                      \
+%{__os_install_post}                                        \
+%{_sysbindir}/fipshmac %{buildroot}/%{_libdir}/libcrypt.so.%{sov} \
+%{__ln_s} .libcrypt.so.%{sov}.hmac                          \\\
+  %{buildroot}/%{_libdir}/.libcrypt.so.%{soc}.hmac             \
+%{nil}
+
+%global _sysbindir %_bindir
+
+%global realname libxcrypt
+%global _prefix /opt/rx
+%global _datadir %{_prefix}/share
+%global _mandir  %{_datadir}/man
+
+
+Name:           rx-libxcrypt
+Version:        4.4.17
+Release:        1%{?dist}
+Summary:        Extended crypt library for DES, MD5, Blowfish and others
+
+# For explicit license breakdown, see the
+# LICENSING file in the source tarball.
+License:        LGPLv2+ and BSD and Public Domain
+URL:            https://github.com/besser82/libxcrypt
+Source0:        %{url}/archive/refs/tags/v%{version}.tar.gz#/%{realname}-%{version}.tar.gz
+
+BuildRequires:  fipscheck
+BuildRequires:  libtool
+
+Requires:       glibc%{_isa}
+
+%description
+libxcrypt is a modern library for one-way hashing of passwords.  It
+supports DES, MD5, SHA-2-256, SHA-2-512, and bcrypt-based password
+hashes, and provides the traditional Unix 'crypt' and 'crypt_r'
+interfaces, as well as a set of extended interfaces pioneered by
+Openwall Linux, 'crypt_rn', 'crypt_ra', 'crypt_gensalt',
+'crypt_gensalt_rn', and 'crypt_gensalt_ra'.
+
+libxcrypt is intended to be used by login(1), passwd(1), and other
+similar programs; that is, to hash a small number of passwords during
+an interactive authentication dialogue with a human.  It is not
+suitable for use in bulk password-cracking applications, or in any
+other situation where speed is more important than careful handling of
+sensitive data.  However, it *is* intended to be fast and lightweight
+enough for use in servers that must field thousands of login attempts
+per minute.
+
+On Linux-based systems, by default libxcrypt will be binary backward
+compatible with the libcrypt.so.1 shipped as part of the GNU C Library.
+This means that all existing binary executables linked against glibc's
+libcrypt should work unmodified with this library's libcrypt.so.1.  We
+have taken pains to provide exactly the same "symbol versions" as were
+used by glibc on various CPU architectures, and to account for the
+variety of ways in which the Openwall extensions were patched into
+glibc's libcrypt by some Linux distributions.  (For instance,
+compatibility symlinks for SuSE's "libowcrypt" are provided.)
+
+However, the converse is not true: programs linked against libxcrypt
+will not work with glibc's libcrypt.  Also, programs that use certain
+legacy APIs supplied by glibc's libcrypt ('encrypt', 'encrypt_r',
+'setkey', 'setkey_r', and 'fcrypt') cannot be compiled against libxcrypt.
+
+
+%package        devel
+Summary:        Development files for %{name}
+
+Requires:       %{name}%{?_isa}       == %{version}-%{release}
+Requires:       glibc-devel%{?_isa}
+Requires:       glibc-headers%{?_isa}
+Conflicts:	man-pages < 4.15-3
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%package        static
+Summary:        Static library for -static linking with %{name}
+
+Requires:       %{name}-devel%{?_isa} == %{version}-%{release}
+Requires:       glibc-static%{?_isa}
+
+%description    static
+This package contains the libxcrypt static libraries for -static
+linking.  You don't need this, unless you link statically, which
+is highly discouraged.
+
+
+%prep
+%autosetup -p 1 -n %{realname}-%{version}
+autoreconf -fiv
+
+
+%build
+export CFLAGS="-Wno-error=sign-conversion -Wno-error=missing-attributes $CFLAGS"
+%configure                     \
+  --disable-silent-rules       \
+  --enable-shared              \
+  --enable-static              \
+  --disable-failure-tokens     \
+  --enable-hashes=all          \
+  --enable-obsolete-api=glibc  \
+  --with-pkgconfigdir=%{_libdir}/pkgconfig
+%make_build
+
+
+%install
+%make_install
+
+# Get rid of libtool crap.
+find %{buildroot} -name '*.la' -print -delete
+
+# Install documentation to shared %%_pkgdocdir.
+mkdir -p %{buildroot}%{_pkgdocdir}
+install -Dpm 0644 -t %{buildroot}%{_pkgdocdir} \
+  ChangeLog NEWS README THANKS TODO AUTHORS COPYING.LIB LICENSING
+
+
+%check
+%make_build check || \
+  {
+    rc=$?;
+    echo "-----BEGIN TESTLOG-----";
+    %{__cat} test-suite.log;
+    echo "-----END TESTLOG-----";
+    exit $rc;
+  }
+
+
+%ldconfig_scriptlets
+
+
+%files
+%dir %{_pkgdocdir}
+%{_pkgdocdir}/NEWS
+%{_pkgdocdir}/README
+%{_pkgdocdir}/THANKS
+%{_pkgdocdir}/AUTHORS
+%{_pkgdocdir}/COPYING.LIB
+%{_pkgdocdir}/LICENSING
+%{_libdir}/.libcrypt.so.%{soc}.hmac
+%{_libdir}/.libcrypt.so.%{sov}.hmac
+%{_libdir}/libcrypt.so.%{soc}
+%{_libdir}/libcrypt.so.%{sov}
+%{_mandir}/man5/crypt.5*
+
+
+%files          devel
+%{_pkgdocdir}/ChangeLog
+%{_pkgdocdir}/TODO
+%{_libdir}/libcrypt.so
+%{_libdir}/libxcrypt.so
+%{_includedir}/*crypt.h
+%{_libdir}/pkgconfig/libcrypt.pc
+%{_libdir}/pkgconfig/%{realname}.pc
+%{_mandir}/man3/crypt.3*
+%{_mandir}/man3/crypt_r.3*
+%{_mandir}/man3/crypt_ra.3*
+%{_mandir}/man3/crypt_rn.3*
+%{_mandir}/man3/crypt_gensalt.3*
+%{_mandir}/man3/crypt_checksalt.3*
+%{_mandir}/man3/crypt_gensalt_ra.3*
+%{_mandir}/man3/crypt_gensalt_rn.3*
+%{_mandir}/man3/crypt_preferred_method.3*
+
+%files          static
+%{_libdir}/libcrypt.a
+%{_libdir}/libxcrypt.a