diff --git a/ocaml-lwt.spec b/ocaml-lwt.spec
index 7246991..9e7bb81 100644
--- a/ocaml-lwt.spec
+++ b/ocaml-lwt.spec
@@ -3,7 +3,7 @@
 
 Name:           ocaml-lwt
 Version:        2.4.2
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        OCaml lightweight thread library
 
 License:        LGPLv2+ with exceptions
@@ -19,9 +19,10 @@ BuildRequires:  ocaml >= 3.10.0
 BuildRequires:  ocaml-findlib-devel
 BuildRequires:  ocaml-ocamldoc
 BuildRequires:  ocaml-camlp4-devel
-BuildRequires:  ocaml-ssl >= 0.4.0
-BuildRequires:  ocaml-react >= 0.9.0
+BuildRequires:  ocaml-ssl-devel >= 0.4.0
+BuildRequires:  ocaml-react-devel >= 0.9.0
 BuildRequires:  chrpath
+BuildRequires:  glib2-devel
 BuildRequires:  libev-devel
 
 
@@ -50,6 +51,7 @@ iconv -f iso-8859-1 -t utf-8 < README.old > README
 
 
 %build
+./configure --enable-ssl --enable-glib --enable-react --prefix=%{_prefix}
 make
 
 
@@ -63,6 +65,11 @@ strip $OCAMLFIND_DESTDIR/stublibs/dll*.so
 chrpath --delete $OCAMLFIND_DESTDIR/stublibs/dll*.so
 
 
+%check
+# Check lwt.react support is enabled (RHBZ#1048367).
+OCAMLPATH=$RPM_BUILD_ROOT%{_libdir}/ocaml ocamlfind query lwt.react
+
+
 %files
 %doc LICENSE COPYING
 %{_libdir}/ocaml/lwt
@@ -87,6 +94,11 @@ chrpath --delete $OCAMLFIND_DESTDIR/stublibs/dll*.so
 
 
 %changelog
+* Tue Feb 18 2014 Michel Salim <salimma@fedoraproject.org> - 2.4.2-3
+- Backport changes from F20's 2.4.2-4:
+- Enable lwt.react support, and check it gets enabled (RHBZ#1048367).
+- Enable SSL & glib integration (from Rawhide).
+
 * Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.4.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild