--- a/Makefile
+++ b/Makefile
@@ -863,9 +863,8 @@ path/mktemp.lo path/mktemp.o: ltcompile path/mktemp.c systime.h include/bglibs/p
 	./ltcompile path/mktemp.c
 
 perl-head.pl: 
-	( set -e; PATH="/bin:/usr/bin:/usr/local/bin:$$PATH"; export PATH; \
-	  perl=`which perl`; \
-	  echo "#! $$perl"; \
+	( set -e; \
+	  echo "#!/usr/bin/env perl"; \
 	  echo "# WARNING: This file was auto-generated. Do not edit!"; \
 	  echo ) >perl-head.pl