--- a/make-makelib.sh
+++ b/make-makelib.sh
@@ -1,6 +1,6 @@
 echo 'main="$1"; shift'
 echo 'rm -f "$main"'
-echo 'ar cr "$main" ${1+"$@"}'
+echo '${AR} cr "$main" ${1+"$@"}'
 
 case "$1" in
 sunos-5.*) ;;
@@ -11,6 +11,6 @@
 hp-ux-*) ;;
 sco*) ;;
 *)
-  echo 'ranlib "$main"'
+  echo '${RANLIB} "$main"'
   ;;
 esac