Disable any parallel build options.
Index: ats2-lang-0.4.2/Makefile_dist
===================================================================
--- ats2-lang-0.4.2.orig/Makefile_dist
+++ ats2-lang-0.4.2/Makefile_dist
@@ -20,7 +20,7 @@ RMRF=rm -rf
 ######
 
 MAKE=make
-MAKEJ4=make -j4
+MAKEJ4=make
 
 ######
 #
