Make the -doc subpackage conditional.

ocaml-compiler-libs-janestreet.spec

@@ -1,3 +1,7 @@
+# Documentation adds a circular dependency, so by
+# default we build without.
+%bcond_with doc
+
 %ifnarch %{ocaml_native_compiler}
 %global debug_package %{nil}
 %endif
@@ -15,7 +19,9 @@ Source0:        %{url}/archive/v%{version}/%{srcname}-%{version}.tar.gz
 
 BuildRequires:  ocaml >= 4.04.1
 BuildRequires:  ocaml-dune >= 1.5.1
+%if %{with doc}
 BuildRequires:  ocaml-odoc
+%endif
 
 %description
 This package exposes the OCaml compiler libraries repackaged under
@@ -30,25 +36,31 @@ The %{name}-devel package contains libraries and
 signature files for developing applications that use
 %{name}.
 
+%if %{with doc}
 %package        doc
 Summary:        Documentation for %{name}
 BuildArch:      noarch
 
 %description    doc
 Documentation for %{name}.
+%endif
 
 %prep
 %autosetup -n %{srcname}-%{version}
 
 %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
@@ -87,15 +99,18 @@ find %{buildroot}%{_libdir}/ocaml -name \*.cmxs -exec chmod a+x {} \+
 %endif
 %{_libdir}/ocaml/%{srcname}/*/*.cmt
 
+%if %{with doc}
 %files doc
 %doc _build/default/_doc/_html/
 %doc _build/default/_doc/_mlds/
 %doc _build/default/_doc/_odoc/
 %license LICENSE.md
+%endif
 
 %changelog
 * Mon Mar  1 12:17:33 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 0.12.3-3
 - OCaml 4.12.0 build
+- Make the -doc subpackage conditional.
 
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.12.3-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild