source: kBuild/branches/GNU/src/gmake/tests/scripts/features/varnesting@ 54

$description = "The following test creates a makefile to ...";

$details = "";

open(MAKEFILE,"> $makefile");

# The Contents of the MAKEFILE ...

print MAKEFILE "x = variable1\n"
              ."variable2 := Hello\n"
              ."y = \$(subst 1,2,\$(x))\n"
              ."z = y\n"
              ."a := \$(\$(\$(z)))\n"
              ."all: \n"
              ."\t\@echo \$(a)\n";

# END of Contents of MAKEFILE

close(MAKEFILE);

&run_make_with_options($makefile,"",&get_logfile);

# Create the answer to what should be produced by this Makefile
$answer = "Hello\n";

&compare_output($answer,&get_logfile(1));

1;