Remove build dependency on python2-Cython

python-pyopengl.spec

@@ -3,7 +3,7 @@
 
 Name:           python-%{shortname}
 Version:        3.1.1a1
-Release:        15%{?dist}
+Release:        16%{?dist}
 Summary:        Python bindings for OpenGL
 License:        BSD
 URL:            https://github.com/mcfletch/pyopengl
@@ -30,7 +30,6 @@ BuildRequires:  gcc
 BuildRequires:  python2-devel
 BuildRequires:  python2-setuptools
 BuildRequires:  python2-numpy
-BuildRequires:  python2-Cython
 Requires:       freeglut
 Requires:       python2-numpy
 %{?python_provide:%python_provide python2-%{shortname}}
@@ -100,7 +99,8 @@ sed -i -e 's/from OpenGL.raw.GL.SGIX.async/from OpenGL.raw.GL.SGIX.async_/g' \
     %{srcname}-%{version}/OpenGL/GL/SGIX/async_.py
 
 %build
-# Delete all Cython generated .c files to force a rebuild
+# Delete all Cython generated .c files to force a rebuild in py3_build
+# (py2_build then reuses the Cython output)
 pushd %{srcname}-accelerate-%{version}/src
 for f in *.pyx ; do
     rm -f "${f%.pyx}.c"
@@ -109,8 +109,8 @@ popd
 
 for dir in %{srcname}-%{version} %{srcname}-accelerate-%{version} ; do
     pushd $dir
-    %py2_build
     %py3_build
+    %py2_build
     popd
 done
 
@@ -161,6 +161,9 @@ popd
 
 
 %changelog
+* Tue Jul 16 2019 Petr Viktorin <pviktori@redhat.com> - 3.1.1a1-16
+- Remove build dependency on python2-Cython
+
 * Sat Feb 02 2019 Fedora Release Engineering <releng@fedoraproject.org> - 3.1.1a1-15
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild