make it possible to build 'python3.1?t-setuptools'

Author: totaam

packaging/rpm/python3-setuptools.spec

@@ -2,11 +2,15 @@
 %define _disable_source_fetch 0
 %if "%{getenv:PYTHON3}" == ""
 %global python3 python3
+%define python3_interpreter python3
+%define python3_devel python3-devel
 %else
 %global python3 %{getenv:PYTHON3}
 %undefine __pythondist_requires
 %undefine __python_requires
 %define python3_sitelib %(%{python3} -Ic "from sysconfig import get_path; print(get_path('purelib').replace('/usr/local/', '/usr/'))" 2> /dev/null)
+%define python3_interpreter %(echo %{python3} | sed 's/t$//g')
+%define python3_devel %{python3_interpreter}-devel
 %endif
 
 Name:           %{python3}-%{srcname}
@@ -17,8 +21,8 @@ License:        MIT
 URL:            http://pypi.python.org/pypi/%{srcname}
 Source0:        https://files.pythonhosted.org/packages/source/s/%{srcname}/%{srcname}-%{version}.tar.gz
 BuildArch:      noarch
-BuildRequires:  %{python3}-devel
-Requires:       %{python3}
+BuildRequires:  %{python3_devel}
+Requires:       %{python3_interpreter}
 
 %description
 Setuptools_scm handles managing your python package versions in scm metadata.