Fix Python 3 builds / RHEL macros (RHBZ#1404631).

nbdkit.spec

@@ -4,9 +4,14 @@
 %global have_libguestfs 1
 %endif
 
+# Currently everything has Python 2.  RHEL 7 doesn't have Python 3.
+%if 0%{?rhel} != 7
+%global have_python3 1
+%endif
+
 Name:           nbdkit
 Version:        1.1.18
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        NBD server
 
 License:        BSD
@@ -40,7 +45,7 @@ BuildRequires:  libcurl-devel
 BuildRequires:  perl-devel
 BuildRequires:  perl(ExtUtils::Embed)
 BuildRequires:  python2-devel
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 BuildRequires:  python3-devel
 %endif
 %ifarch %{ocaml_native_compiler}
@@ -230,7 +235,7 @@ Obsoletes:      %{name}-plugin-python <= %{version}-%{release}
 This package lets you write Python 2 plugins for %{name}.
 
 
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 %package plugin-python3
 Summary:        Python 3 plugin for %{name}
 License:        BSD
@@ -309,7 +314,7 @@ mv "$copy" python3
 %configure --disable-static --with-tls-priority=@NBDKIT,SYSTEM
 make %{?_smp_mflags}
 
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 pushd python3
 export PYTHON=%{_bindir}/python3
 %configure --disable-static --disable-perl --disable-ocaml --disable-ruby
@@ -326,7 +331,7 @@ popd
 # Install for Python 2 and Python 3 separately.
 # We do the Python 3 install first since that build is
 # incomplete.
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 pushd python3
 %make_install
 popd
@@ -370,7 +375,7 @@ make check || {
     exit 1
   }
 
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 pushd python3
 make check || {
     cat tests/test-suite.log
@@ -469,7 +474,7 @@ popd
 %{_libdir}/%{name}/plugins/nbdkit-python2-plugin.so
 
 
-%if 0%{?rhel} >= 8
+%if 0%{?have_python3}
 %files plugin-python3
 %{_libdir}/%{name}/plugins/nbdkit-python3-plugin.so
 %endif
@@ -505,6 +510,9 @@ popd
 
 
 %changelog
+* Wed Nov 29 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.18-4
+- Fix Python 3 builds / RHEL macros (RHBZ#1404631).
+
 * Tue Nov 21 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.18-3
 - New upstream version 1.1.18.
 - Add NBD forwarding plugin.