newlib-cygwin/winsup/cygwin/scripts/mkglobals_h

#!/usr/bin/perl
my @argv = @ARGV;
$_ = join('', <>);
s/\s+\n/\n/sog;
s/\n[^\n]*!globals.h[^\n]*\n/\n/sog;
s%/\*.*?\*/%%sog;
s/(enum\s.*?{.*?})/munge($1)/soge;
s/^(\s*)([a-zA-Z_])/$1extern $2/mog;
s/extern (extern|enum)/$1/sog;
s/\n\s*extern static[^\n]*\n/\n/sog;
s/\s+=.*?;/;/sog;
s/^\n+//sog;
s/#include "winsup\.h"\n//so;
s/-NL-/\n/sog;
s/-EQ-/=/sog;
s/\n{2,}/\n/sog;
print <<PRELUDE,$_;
/* $target - Autogenerated from @argv.  Look there for comments. */

#pragma once
PRELUDE
close $target_fd;
sub munge($) {
    my $val = shift;
    $val =~ s/\n/-NL-/sog;
    $val =~ s/=/-EQ-/sog;
    return $val;
}