diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2c212cc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/base-*.tar.gz
diff --git a/ocaml-base.rpmlintrc b/ocaml-base.rpmlintrc
new file mode 100644
index 0000000..4e129aa
--- /dev/null
+++ b/ocaml-base.rpmlintrc
@@ -0,0 +1,11 @@
+# THIS FILE IS FOR WHITELISTING RPMLINT ERRORS AND WARNINGS IN TASKOTRON
+# https://fedoraproject.org/wiki/Taskotron/Tasks/dist.rpmlint#Whitelisting_errors
+
+# The dictionary is missing some technical terms
+addFilter(r'W: spelling-error .* performant')
+
+# Documentation is in the main package
+addFilter(r'ocaml-base-devel\.[^:]+: W: no-documentation')
+
+# The stub library does not need any C library symbols
+addFilter(r'E: shared-lib-without-dependency-information .*stubs\.so')
diff --git a/ocaml-base.spec b/ocaml-base.spec
new file mode 100644
index 0000000..a3a51c3
--- /dev/null
+++ b/ocaml-base.spec
@@ -0,0 +1,122 @@
+# TESTING NOTE: The ppx_jane module is needed to run the tests.  However,
+# ppx_jane transitively requires this module.  Therefore, we cannot run the
+# tests at all until we are able to add ppx_jane to Fedora, and even then we
+# will only be able to run the tests in non-bootstrap mode.
+
+%ifnarch %{ocaml_native_compiler}
+%global debug_package %{nil}
+%endif
+
+%global srcname base
+
+Name:           ocaml-%{srcname}
+Version:        0.13.0
+Release:        1%{?dist}
+Summary:        Jane Street standard library for OCaml
+
+License:        MIT
+URL:            https://github.com/janestreet/%{srcname}
+Source0:        %{url}/archive/v%{version}/%{srcname}-%{version}.tar.gz
+
+BuildRequires:  ocaml >= 4.04.2
+BuildRequires:  ocaml-dune-devel >= 1.5.1
+BuildRequires:  ocaml-findlib
+BuildRequires:  ocaml-sexplib0-devel >= 0.13
+
+%description
+Base is a standard library for OCaml.  It provides a standard set of
+general purpose modules that are well-tested, performant, and
+fully-portable across any environment that can run OCaml code.  Unlike
+other standard library projects, Base is meant to be used as a wholesale
+replacement of the standard library distributed with the OCaml compiler.
+In particular it makes different choices and doesn't re-export features
+that are not fully portable such as I/O, which are left to other
+libraries.
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    devel
+The %{name}-devel package contains libraries and signature files for
+developing applications that use %{name}.
+
+%prep
+%autosetup -n %{srcname}-%{version}
+
+%build
+dune build
+
+# TODO: Once odoc is available, BR it and run this to generate documentation:
+# dune build @doc
+
+# Dune passes RPM_LD_FLAGS to ocamlmklib without -ldopt, resulting in "Unknown
+# option" warnings from ocamlmklib and a library that has not been linked with
+# the correct flags.  We can't add -ldopt ourselves, since that breaks
+# compilation of the cmxs files.  This seems to be a weakness of dune; linker
+# flags and libraries to be linked with have to be specified together, and
+# nothing takes care of separating them and adding ldopt as necessary.  We
+# relink manually to address the problem.
+pushd _build/default/src
+ocamlmklib -g -ldopt "$RPM_LD_FLAGS" -o base_stubs *.o
+cd ../hash_types/src
+ocamlmklib -g -ldopt "$RPM_LD_FLAGS" -o base_internalhash_types_stubs *.o
+popd
+
+%install
+dune install --destdir=%{buildroot}
+
+# We install the documentation with the doc macro
+rm -fr %{buildroot}%{_prefix}/doc
+
+%ifarch %{ocaml_native_compiler}
+# Add missing executable bits
+find %{buildroot}%{_libdir}/ocaml -name \*.cmxs -exec chmod a+x {} \+
+%endif
+
+%files
+%doc CHANGES.md CONTRIBUTING.md README.org ROADMAP.md
+%license LICENSE.md
+%dir %{_libdir}/ocaml/%{srcname}/
+%dir %{_libdir}/ocaml/%{srcname}/base_internalhash_types/
+%dir %{_libdir}/ocaml/%{srcname}/caml/
+%dir %{_libdir}/ocaml/%{srcname}/md5/
+%dir %{_libdir}/ocaml/%{srcname}/shadow_stdlib/
+%{_libdir}/ocaml/%{srcname}/META
+%{_libdir}/ocaml/%{srcname}/*.cma
+%{_libdir}/ocaml/%{srcname}/*.cmi
+%{_libdir}/ocaml/%{srcname}/*.js
+%{_libdir}/ocaml/%{srcname}/*/*.cma
+%{_libdir}/ocaml/%{srcname}/*/*.cmi
+%{_libdir}/ocaml/%{srcname}/*/*.js
+%ifarch %{ocaml_native_compiler}
+%{_libdir}/ocaml/%{srcname}/*.cmxs
+%{_libdir}/ocaml/%{srcname}/*/*.cmxs
+%endif
+%{_libdir}/ocaml/stublibs/dllbase_stubs.so
+%{_libdir}/ocaml/stublibs/dllbase_internalhash_types_stubs.so
+
+%files devel
+%{_libdir}/ocaml/%{srcname}/dune-package
+%{_libdir}/ocaml/%{srcname}/opam
+%ifarch %{ocaml_native_compiler}
+%{_libdir}/ocaml/%{srcname}/*.a
+%{_libdir}/ocaml/%{srcname}/*.cmx
+%{_libdir}/ocaml/%{srcname}/*.cmxa
+%{_libdir}/ocaml/%{srcname}/*/*.a
+%{_libdir}/ocaml/%{srcname}/*/*.cmx
+%{_libdir}/ocaml/%{srcname}/*/*.cmxa
+%endif
+%{_libdir}/ocaml/%{srcname}/*.cmt
+%{_libdir}/ocaml/%{srcname}/*.cmti
+%{_libdir}/ocaml/%{srcname}/*.ml
+%{_libdir}/ocaml/%{srcname}/*.mli
+%{_libdir}/ocaml/%{srcname}/*/*.cmt
+%{_libdir}/ocaml/%{srcname}/*/*.cmti
+%{_libdir}/ocaml/%{srcname}/*/*.h
+%{_libdir}/ocaml/%{srcname}/*/*.ml
+%{_libdir}/ocaml/%{srcname}/*/*.mli
+
+%changelog
+* Thu Jan  2 2020 Jerry James <loganjerry@gmail.com> - 0.13.0-1
+- Initial RPM
diff --git a/sources b/sources
new file mode 100644
index 0000000..680f9c2
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (base-0.13.0.tar.gz) = f753057ed5bda069c5ab535ad98e7277c8326923000dc9f164602973861fb00340d1976d48777f193bc8c0d5bd56a6c47d5b760d4833244047bff1304083e4e8