sort input files

bmwiedemann · jklymak · commit 65f3906c05ba · 2017-06-13T06:33:46.000-07:00
when building packages (e.g. for openSUSE Linux) (random) filesystem order of input files influences ordering of functions in the output, thus without the patch, builds (in disposable VMs) would usually differ. See https://reproducible-builds.org/ for why this matters.
diff --git a/setupext.py b/setupext.py
@@ -1341,7 +1341,7 @@ def add_flags(self, ext):
                                        default_libraries=['qhull'])
         else:
             ext.include_dirs.append('extern')
-            ext.sources.extend(glob.glob('extern/libqhull/*.c'))
+            ext.sources.extend(sorted(glob.glob('extern/libqhull/*.c')))
 
 
 class TTConv(SetupPackage):
