Make SAGA package compatible with F28

saga/saga.spec

@@ -1,6 +1,6 @@
 Name:           saga
 Version:        2.3.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Geographic information system with an API for processing geodata 
 
 Group:          Applications/Engineering
@@ -85,6 +85,8 @@ sed -i -e 's,qhull/qhull_a.h,libqhull/qhull_a.h,' \
 %endif
 
 %build
+export PYTHON=python
+export PYTHON_VERSION=2.7
 # wxGTK3 3.0.1-3 moved wx-config to libexecdir
 PATH=$PATH:%{_libexecdir}/wxGTK3/
 autoreconf -fi
@@ -150,6 +152,9 @@ appstream-util validate-relax --nonet %{buildroot}/%{_datadir}/appdata/%{name}.a
 
 
 %changelog
+* Fri May 25 2018 Daniele Viganò <daniele@vigano.me> - 2.3.1-4
+- Make package compatible with F28
+
 * Thu Jan 18 2018 Daniele Viganò <daniele@vigano.me> - 2.3.1-3
 - Add from Debian to address segfaults with shapefiles and newer GCC
 - Add a patch from Debian to fix spelling