+my $F;
+open $F,">","testdata.dat";
+print $F "12345670" x 128;
+close $F;
+
+open $F,">","testbig.dat";
+print $F ("12345670" x 8 . "\n") x 4096;
+close $F;
+# Set OPENSSL_ENGINES environment variable to just built engine
+if(!defined $ENV{'OPENSSL_ENGINES'}){
+ $ENV{'OPENSSL_ENGINES'} = abs_path("../.libs");
+}