--- a/test/asmdisasm.pl
+++ b/test/asmdisasm.pl
@@ -22,10 +22,10 @@
 # uninitialized stuff
 my ($line, $output);
 
-system "as --32 -o $obj_file $asm_file";
+system "$ENV{AS} --32 -o $obj_file $asm_file";
 exit(1) if ($? != 0);
 
-$output = (grep(/\.text/,`objdump -h $obj_file`))[0];
+$output = (grep(/\.text/,`$ENV{OBJDUMP} -h $obj_file`))[0];
 $output =~ s/^\s+//g;
 my ($idx,$name,$size,$vma,$lma,$offset,$align)=split(/\s+/,$output);
 $size = hex($size);