diff --git a/Makefile b/Makefile
index 1b50f45..5a77c48 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 INKSCAPE ?= inkscape
 OPENSCAD ?= openscad
+PYTHON ?= python2
 
 # Used by dxf_export/main.sh
 export INKSCAPE
@@ -36,7 +37,7 @@ $(foreach i,$(COMPILED_SCAD_FILES),$(eval $(i): $(filter $(dir $(i))%,$(LIBRARY_
 
 # Rule to convert an SVG file to a DXF file.
 %.dxf: %.svg
-	python2 dxf_export $< $@
+	PYTHONPATH="support:$$PYTHONPATH" $(PYTHON) -m dxf_export $< $@
 
 # Rule to compile an OpenSCAD file to an STL file.
 %.stl: %.scad
diff --git a/support/dxf_export/__init__.py b/support/dxf_export/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/dxf_export/__main__.py b/support/dxf_export/__main__.py
similarity index 100%
rename from dxf_export/__main__.py
rename to support/dxf_export/__main__.py
diff --git a/dxf_export/better_dxf_outlines.py b/support/dxf_export/better_dxf_outlines.py
similarity index 100%
rename from dxf_export/better_dxf_outlines.py
rename to support/dxf_export/better_dxf_outlines.py
diff --git a/dxf_export/bezmisc.py b/support/dxf_export/bezmisc.py
similarity index 100%
rename from dxf_export/bezmisc.py
rename to support/dxf_export/bezmisc.py
diff --git a/dxf_export/cspsubdiv.py b/support/dxf_export/cspsubdiv.py
similarity index 100%
rename from dxf_export/cspsubdiv.py
rename to support/dxf_export/cspsubdiv.py
diff --git a/dxf_export/cubicsuperpath.py b/support/dxf_export/cubicsuperpath.py
similarity index 100%
rename from dxf_export/cubicsuperpath.py
rename to support/dxf_export/cubicsuperpath.py
diff --git a/dxf_export/dxf_templates.py b/support/dxf_export/dxf_templates.py
similarity index 100%
rename from dxf_export/dxf_templates.py
rename to support/dxf_export/dxf_templates.py
diff --git a/dxf_export/ffgeom.py b/support/dxf_export/ffgeom.py
similarity index 100%
rename from dxf_export/ffgeom.py
rename to support/dxf_export/ffgeom.py
diff --git a/dxf_export/inkex.py b/support/dxf_export/inkex.py
similarity index 100%
rename from dxf_export/inkex.py
rename to support/dxf_export/inkex.py
diff --git a/dxf_export/simplepath.py b/support/dxf_export/simplepath.py
similarity index 100%
rename from dxf_export/simplepath.py
rename to support/dxf_export/simplepath.py
diff --git a/dxf_export/simplestyle.py b/support/dxf_export/simplestyle.py
similarity index 100%
rename from dxf_export/simplestyle.py
rename to support/dxf_export/simplestyle.py
diff --git a/dxf_export/simpletransform.py b/support/dxf_export/simpletransform.py
similarity index 100%
rename from dxf_export/simpletransform.py
rename to support/dxf_export/simpletransform.py