#!perl
use strict;
use warnings;
use Config;
require './test.pl';
if ( $Config{usecrosscompile} ) {
  skip_all( "Not all files are available during cross-compilation" );
}
plan('no_plan');
# Fail for every PERL_ARGS_ASSERT* macro that was declared but not used.
my %declared;
my %used;
my $prefix = '';
unless (-d 't' && -f 'MANIFEST') {
    # we'll assume that we are in t then.
    # All files are internal to perl, so Unix-style is sufficiently portable.
    $prefix = '../';
}
{
    my $proto = $prefix . 'proto.h';
    open my $fh, '<', $proto or die "Can't open $proto: $!";
    while (<$fh>) {
        # The trailing '.' distinguishes real from dummy macros that have no
        # real asserts
        $declared{$1}++ if /^#define\s+(PERL_ARGS_ASSERT[A-Za-z0-9_]+)\s+./;
    }
}
cmp_ok(scalar keys %declared, '>', 0, 'Some macros were declared');
if (!@ARGV) {
    my $manifest = $prefix . 'MANIFEST';
    open my $fh, '<', $manifest or die "Can't open $manifest: $!";
    while (<$fh>) {
        # *.c or */*.c
        push @ARGV, $prefix . $1 if m!^((?:[^/]+/)?[^/]+\.c)\t!;
        # Special case the *inline.h since they behave like *.c
        push @ARGV, $prefix . $1 if m!^(([^/]+)?inline\.h)\t!;
    }
}
while (<>) {
    $used{$1}++ if /^\s+(PERL_ARGS_ASSERT_[A-Za-z0-9_]+);$/;
}
my %unused;
foreach (keys %declared) {
    $unused{$_}++ unless $used{$_};
}
if (keys %unused) {
    fail("$_ is declared but not used") foreach sort keys %unused;
} else {
    pass('Every PERL_ARGS_ASSERT* macro declared is used');
}