Use new macros %python_wheel_dir and %python_wheel_pkg_prefix

This does not actually change anything on Fedora.

python-virtualenv.spec

@@ -45,9 +45,9 @@ BuildRequires:  python3-pytest-timeout
 %endif
 
 # RPM installed wheels
-BuildRequires:  python-pip-wheel
+BuildRequires:  %{python_wheel_pkg_prefix}-pip-wheel
-BuildRequires:  python-setuptools-wheel
+BuildRequires:  %{python_wheel_pkg_prefix}-setuptools-wheel
-BuildRequires:  python-wheel-wheel
+BuildRequires:  %{python_wheel_pkg_prefix}-wheel-wheel
 
 %description
 virtualenv is a tool to create isolated Python environments. virtualenv
@@ -74,9 +74,9 @@ Obsoletes:      python3-virtualenv-python26 < 16.6
 Provides:       virtualenv = %{version}-%{release}
 
 # RPM installed wheels
-Requires:       python-pip-wheel
+Requires:       %{python_wheel_pkg_prefix}-pip-wheel
-Requires:       python-setuptools-wheel
+Requires:       %{python_wheel_pkg_prefix}-setuptools-wheel
-Requires:       python-wheel-wheel
+Requires:       %{python_wheel_pkg_prefix}-wheel-wheel
 
 %description -n python3-virtualenv
 virtualenv is a tool to create isolated Python environments. virtualenv
@@ -112,6 +112,10 @@ rm src/virtualenv/seed/wheels/embed/wheel-*
 
 test ! -f src/virtualenv/seed/embed/wheels/*.whl
 
+# Replace hardcoded path from rpm-wheels.patch by %%{python_wheel_dir}
+# On Fedora, this should change nothing, but when building for RHEL9+, it will
+sed -i "s|/usr/share/python-wheels|%{python_wheel_dir}|" src/virtualenv/util/path/_system_wheels.py
+
 %build
 # Build code
 %{py3_build}