Do not leave broken G-code files behind.

diff --git a/Makefile b/Makefile
index bc24e9ec690caade79a9946bd10b9d614e50cefc..af83e546fd4bc4ceb88d47bed00460fcf85ea98f 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -15,6 +15,6 @@ clean:
        $(RM) $(GCODE)
 
 .svg.ngc:
-       $(SVG2GCODE) $(OPTS) jobfile $^ > $@
+       $(SVG2GCODE) $(OPTS) jobfile $^ > $@.new && mv $@.new $@
 
 .SUFFIXES: .svg .ngc