Don't assume version of rm supports -rf: use RM instead.
diff --git a/fips/fipsalgtest.pl b/fips/fipsalgtest.pl
index 048e3e8..094b141 100644
--- a/fips/fipsalgtest.pl
+++ b/fips/fipsalgtest.pl
@@ -942,7 +942,7 @@
 END
 		    } else {
 		    print OUT <<END
-\$RM -rf \"$outdir\"
+\$RM \"$outdir\"
 \$MKDIR \"$outdir\"
 
 END