diff --git a/ocaml-omake.spec b/ocaml-omake.spec
index 96b3174..de32e55 100644
--- a/ocaml-omake.spec
+++ b/ocaml-omake.spec
@@ -1,14 +1,18 @@
+%global opt %(test -x %{_bindir}/ocamlopt && echo 1 || echo 0)
+%if !%opt
+%global debug_package %{nil}
+%define __strip /bin/true
+%endif
+
 Name:           ocaml-omake
 Version:        0.9.8.6
-Release:        0.rc1%{?dist}.18
+Release:        0.rc1%{?dist}.19
 Summary:        Build system with automated dependency analysis
 License:        LGPLv2+ with exceptions and GPLv2+ and BSD
 
 URL:            http://omake.metaprl.org/download.html
 Source0:        http://omake.metaprl.org/downloads/omake-%{version}-0.rc1.tar.gz
 
-ExcludeArch:    sparc64 s390 s390x
-
 Patch0:         omake-debian-disable-ocaml-warnings.patch
 Patch1:         omake-0.9.8.6-fix-and-or-operators.patch
 Patch2:         omake-0.9.8.6-kill-warn-error.patch
@@ -77,6 +81,9 @@ chmod 0755 $RPM_BUILD_ROOT%{_bindir}/*
 
 
 %changelog
+* Wed Jul 22 2015 Richard W.M. Jones <rjones@redhat.com> - 0.9.8.6-0.rc1.19
+- s/390x: Disable stripping on bytecode-only platforms.
+
 * Wed Jun 24 2015 Richard W.M. Jones <rjones@redhat.com> - 0.9.8.6-0.rc1.18
 - ocaml-4.02.2 final rebuild.