Don't build for s390x on EL8

python-aiohttp.spec

@@ -3,7 +3,7 @@
 
 Name:           python-%{srcname}
 Version:        3.6.2
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Python HTTP client/server for asyncio
 
 License:        ASL 2.0
@@ -15,6 +15,13 @@ Patch0:         unbundle-http-parser.patch
 BuildRequires:  gcc
 BuildRequires:  http-parser-devel
 
+# EPEL8 is utilizing the CentOS Devel repo for some packages.  However, this is
+# not available for s390x, so exclude it.
+# https://fedoraproject.org/wiki/EPEL/FAQ#RHEL_8.2B_has_binaries_in_the_release.2C_but_is_missing_some_corresponding_-devel_package._How_do_I_build_a_package_that_needs_that_missing_-devel_package.3F
+%if %{defined el8}
+ExcludeArch:    s390x
+%endif
+
 %description
 Python HTTP client/server for asyncio which supports both the client and the
 server side of the HTTP protocol, client and server websocket, and webservers
@@ -51,6 +58,9 @@ with middlewares and pluggable routing.
 %{python3_sitearch}/%{srcname}/
 
 %changelog
+* Wed Apr 08 2020 Carl George <carl@george.computer> - 3.6.2-3
+- Don't build for s390x on EL8
+
 * Thu Jan 30 2020 Fedora Release Engineering <releng@fedoraproject.org> - 3.6.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild