Make the ocaml-odoc dependency conditional.

ocaml-fieldslib.spec

@@ -13,6 +13,10 @@
 %global debug_package %{nil}
 %endif
 
+# Documentation adds a circular dependency, so by
+# default we build without.
+%bcond_with doc
+
 %global srcname fieldslib
 
 Name:           ocaml-%{srcname}
@@ -27,7 +31,9 @@ Source0:        %{url}/archive/v%{version}/%{srcname}-%{version}.tar.gz
 BuildRequires:  ocaml >= 4.04.2
 BuildRequires:  ocaml-base-devel >= 0.14
 BuildRequires:  ocaml-dune >= 2.0.0
+%if %{with doc}
 BuildRequires:  ocaml-odoc
+%endif
 
 %description
 This package contains an OCaml syntax extension to define first class
@@ -48,13 +54,17 @@ developing applications that use %{name}.
 
 %build
 dune build %{?_smp_mflags}
+%if %{with doc}
 dune build %{?_smp_mflags} @doc
+%endif
 
 %install
 dune install --destdir=%{buildroot}
 
+%if %{with doc}
 # We do not want the dune markers
 find _build/default/_doc/_html -name .dune-keep -delete
+%endif
 
 # We do not want the ml files
 find %{buildroot}%{_libdir}/ocaml -name \*.ml -delete
@@ -79,7 +89,9 @@ find %{buildroot}%{_libdir}/ocaml -name \*.cmxs -exec chmod a+x {} \+
 %endif
 
 %files devel
+%if %{with doc}
 %doc _build/default/_doc/_html/*
+%endif
 %{_libdir}/ocaml/%{srcname}/dune-package
 %{_libdir}/ocaml/%{srcname}/opam
 %ifarch %{ocaml_native_compiler}
@@ -92,6 +104,7 @@ find %{buildroot}%{_libdir}/ocaml -name \*.cmxs -exec chmod a+x {} \+
 %changelog
 * Mon Mar  1 17:38:49 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 0.14.0-8
 - OCaml 4.12.0 build
+- Make the ocaml-odoc dependency conditional.
 
 * Sat Feb 20 2021 Jerry James <loganjerry@gmail.com> - 0.14.0-7
 - Bump and rebuild