diff --git a/ocaml-dune.spec b/ocaml-dune.spec
index a227fe7..65cbc61 100644
--- a/ocaml-dune.spec
+++ b/ocaml-dune.spec
@@ -1,6 +1,6 @@
 Name:           ocaml-dune
 Version:        1.10.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A composable build system for OCaml
 
 %global libname %(echo %{name} | sed -e 's/^ocaml-//')
@@ -11,7 +11,6 @@ License:        MIT and LGPLv2 with exceptions and ISC
 URL:            https://dune.build
 Source0:        https://github.com/ocaml/%{libname}/archive/%{version}/%{libname}-%{version}.tar.gz
 
-
 BuildRequires:  ocaml >= 4.02.3
 BuildRequires:  ocaml-findlib-devel
 
@@ -49,6 +48,14 @@ adapted to the open source world. It has matured over a long time and is used
 daily by hundred of developers, which means that it is highly tested and
 productive.
 
+%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}.
+
 %package        doc
 Summary:        HTML documentation for %{name}
 Requires:       %{name} = %{version}-%{release}
@@ -82,6 +89,17 @@ ln -sfvbn dune %{buildroot}%{_bindir}/jbuilder
 cp -av _boot/default/doc/*.1 %{buildroot}%{_mandir}/man1/
 cp -av _boot/default/doc/*.5 %{buildroot}%{_mandir}/man5/
 
+# Dune also has libraries now, which need to be installed via the standard way.
+mkdir -p %{buildroot}%{_libdir}/ocaml/%{libname}/
+cp -aLr _boot/install/default/lib/%{libname}/* %{buildroot}%{_libdir}/ocaml/%{libname}/
+
+# Remove *.ml files from installation.
+# This is a little annoying. ocaml/dune has a bunch of subdirectories that actually contain code.
+# But the "_wp" subdirectory *itself* contains subdirectories with compiled code.
+# So I've special-cased that one.
+rm -fv %{buildroot}%{_libdir}/ocaml/%{libname}/*/*.ml
+rm -fv %{buildroot}%{_libdir}/ocaml/%{libname}/_wp/*/*.ml
+
 # Install documentation by way of pkgdocdir.
 mkdir -p %{buildroot}%{_pkgdocdir}/
 cp -ar README.md CHANGES.md doc/_build/* %{buildroot}%{_pkgdocdir}/
@@ -99,6 +117,30 @@ cp -ar README.md CHANGES.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %{_bindir}/dune
 %{_mandir}/man*/dune*
 %dir %{_pkgdocdir}
+%{_libdir}/ocaml/%{libname}
+%ifarch %{ocaml_native_compiler}
+%exclude %{_libdir}/ocaml/%{libname}/*/*.a
+%exclude %{_libdir}/ocaml/%{libname}/*/*.cmxa
+%exclude %{_libdir}/ocaml/%{libname}/*/*.cmx
+%exclude %{_libdir}/ocaml/%{libname}/_wp/*/*.a
+%exclude %{_libdir}/ocaml/%{libname}/_wp/*/*.cmxa
+%exclude %{_libdir}/ocaml/%{libname}/_wp/*/*.cmx
+%endif
+%exclude %{_libdir}/ocaml/%{libname}/*/*.mli
+%exclude %{_libdir}/ocaml/%{libname}/_wp/*/*.mli
+
+%files devel
+%ifarch %{ocaml_native_compiler}
+%{_libdir}/ocaml/%{libname}/*/*.a
+%{_libdir}/ocaml/%{libname}/*/*.cmxa
+%{_libdir}/ocaml/%{libname}/*/*.cmx
+%{_libdir}/ocaml/%{libname}/_wp/*/*.a
+%{_libdir}/ocaml/%{libname}/_wp/*/*.cmxa
+%{_libdir}/ocaml/%{libname}/_wp/*/*.cmx
+%endif
+%{_libdir}/ocaml/%{libname}/*/*.mli
+# There do not seem to be headers in the _wp subdirectory.
+#{_libdir}/ocaml/{libname}/_wp/*/*.mli
 
 %files doc
 %exclude %{_pkgdocdir}/README.md
@@ -106,6 +148,9 @@ cp -ar README.md CHANGES.md doc/_build/* %{buildroot}%{_pkgdocdir}/
 %doc %{_pkgdocdir}/*
 
 %changelog
+* Tue Aug 06 2019 Ben Rosser <rosser.bjr@gmail.com> - 1.10.0-5
+- Install dune libraries. Add new ocaml-dune subpackage (rhbz#1737414).
+
 * Wed Jul 31 2019 Richard W.M. Jones <rjones@redhat.com> - 1.10.0-4
 - OCaml 4.08.1 (rc2) rebuild.