Make -doc be archful (bz 1792740).

z3.spec

@@ -51,7 +51,8 @@ Header files for build applications that use z3.
 
 %package doc
 Summary:        API documentation for Z3
-BuildArch:      noarch
+# FIXME: this should be noarch, but we end up with different numbers of inheritance
+# graphs on different architectures.  Why?
 
 %description doc
 API documentation for Z3.
@@ -84,10 +85,6 @@ Files for building ocaml applications that use z3.
 Summary:        Python 3 interface to z3
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
 
-# This can be removed once Fedora 29 reaches EOL
-Obsoletes:      python2-%{name} < 4.8
-Provides:       python2-%{name} = 4.8
-
 %description -n python3-%{name}
 Python 3 interface to z3.
 
@@ -221,6 +218,9 @@ mv %{buildroot}%{_prefix}/lib/lib%{name}java.so %{buildroot}%{_libdir}/%{name}
 %{python3_sitearch}/%{name}/
 
 %changelog
+* Tue Jan 21 2020 Jerry James <loganjerry@gmail.com> - 4.8.7-4
+- Make -doc be archful (bz 1792740)
+
 * Sun Jan 19 2020 Richard W.M. Jones <rjones@redhat.com> - 4.8.7-4
 - OCaml 4.10.0+beta1 rebuild.