Build the benchmark in bench/gspn-ssp/ using makefiles

bench/gspn-ssp/templates/gen

@@ -1,6 +1,7 @@
 #!/bin/sh
-rm -Rf ../models
-mkdir ../models
-for dir in predef WCSsym bagrodia s2j2t2 s2j3t2 s3j2t2; do
-  (cd $dir && ./gen)
+
+echo '# This file is automatically generated by modelgen-create, do not edit.'
+for dir in WCSsym bagrodia predef; do
+  export name=templates/$dir
+  $name/gen
 done