+if (!$disabled{asm}) {
+ # probe for -Wa,--noexecstack option...
+ if ($predefined{__clang__}) {
+ # clang has builtin assembler, which doesn't recognize --help,
+ # but it apparently recognizes the option in question on all
+ # supported platforms even when it's meaningless. In other words
+ # probe would fail, but probed option always accepted...
+ push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
+ } elsif ($^O ne 'VMS') {
+ my $cc = $config{CROSS_COMPILE}.$config{CC};
+ open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
+ while(<PIPE>) {
+ if (m/--noexecstack/) {
+ push @{$config{cflags}}, "-Wa,--noexecstack";
+ last;
+ }
+ }
+ close(PIPE);
+ unlink("null.$$.o");
+ }
+}