# Makefile.PL for XML::Hash::XS.
#
# This program is free software; you can redistribute it and/or modify it
# under the same terms as Perl itself.
# Copyright 2012 Yuriy Ustushenko, all rights reserved.
#
# Derived from the module XML::LibXML
# Copyright 2001-2003 AxKit.com Ltd., 2002-2006 Christian Glahn, 2006-2009 Petr Pajas
use 5.008008;
use ExtUtils::MakeMaker;
use Config;
use Symbol;
use File::Spec;
use Cwd;
my (%config, $DEVNULL, $is_Win32, $DEBUG);
$| = 0;
$is_Win32 = ($^O =~ /Win32/);
if ($is_Win32) {
$DEVNULL = 'DEVNULL';
}
else {
$DEVNULL = eval { File::Spec->devnull };
if ($@) { $DEVNULL = '/dev/null' }
}
# common information
my %INFO = (
NAME => 'XML::Hash::XS',
VERSION_FROM => 'lib/XML/Hash/XS.pm', # finds $VERSION
ABSTRACT_FROM => 'lib/XML/Hash/XS.pm', # retrieve abstract from module
AUTHOR => 'Yuriy Ustushenko <yoreek@yahoo.com>',
LICENSE => "perl",
PREREQ_PM => {
'Test::More' => 0,
},
);
# read extra configurations from the commandline
{
my %params;
@params{qw(DEBUG DEFINE INC LIBS XMLPREFIX NO_THREADS LDFLAGS)}=();
@ARGV = grep {
my ($key, $val) = split(/=/, $_, 2);
if (exists $params{$key}) {
$config{$key} = $val; 0
} else { 1 }
} @ARGV;
# switch Debugging messages on
$DEBUG = delete $config{DEBUG};
if ( $DEBUG and $is_Win32 ) {
warn "win32 compile\n";
}
}
# get the libxml2 configuration
unless ( $is_Win32 ) { # cannot get config in W32
my $xml2cfg = "xml2-config";
my $libprefix = $ENV{XMLPREFIX} || $config{XMLPREFIX};
delete $config{XMLPREFIX}; # delete if exists, otherwise MakeMaker gets confused
if ( defined $libprefix ) {
$xml2cfg = $libprefix . '/bin/' . $xml2cfg;
}
# if a user defined INC and LIBS on the command line we must not
# override them
if ( not defined $config{LIBS} and not defined $config{INC} ) {
print "running xml2-config...";
eval {
try_libconfig( $xml2cfg, \%config, @blacklist );
};
if ($@) {
if ( not defined $config{LIBS} and not defined $config{INC} ) {
warn "\nusing fallback values for LIBS and INC\n";
$config{LIBS} = '-L/usr/local/lib -L/usr/lib -L/usr/pkg/lib -L/opt/local/lib -lxml2 -lm';
$config{INC} = '-I/usr/include/libxml2 -I/usr/include '.
'-I/usr/local/include -I/usr/local/include/libxml2 '.
'-I/usr/pkg/include/libxml2 -I/usr/pkg/include '.
'-I/opt/local/include/libxml2 -I/opt/local/include';
print <<OPT;
options:
LIBS='$config{LIBS}'
INC='$config{INC}'
If this is wrong, Re-run as:
\$ $^X Makefile.PL LIBS='-L/path/to/lib' INC='-I/path/to/include'
OPT
}
}
}
}
# fix the ld flags
if ($config{LIBS} !~ /\-l(?:lib)?xml2\b/) {
# in this case we are not able to run xml2-config. therefore we need to
# expand the libz as well.
if ($is_Win32) {
if( $ENV{ACTIVEPERL_MINGW} ) {
$config{LIBS} .= ' -llibxml2.lib -lzlib.lib';
} else {
$config{LIBS} .= ' -llibxml2 -lzlib';
}
} else {
$config{LIBS} .= ' -lxml2 -lz -lm';
}
}
if ($config{LIBS} !~ /\-lz\b/ and !($is_win32 && $config{LIBS} !~ /\-lzlib\b/)) {
# note if libxml2 has not -lz within its cflags, we should not use
# it! We should trust libxml2 and assume libz is not available on the
# current system (this is ofcourse not true with win32 systems.
# $config{LIBS} .= $is_Win32 ? ' -lzlib' :' -lz';
if ( $config{DEBUG} ) {
warn "zlib was not configured\n";
warn "set zlib\n" if $is_Win32;
}
if ($is_Win32) {
if( $ENV{ACTIVEPERL_MINGW} ) {
$config{LIBS} .= ' -lzlib.lib';
} else {
$config{LIBS} .= ' -lzlib';
}
} else {
$config{LIBS} .= ' -lz';
}
}
# test if the libraries are really installed!
unless ( have_library("xml2") ) {
print STDERR <<DEATH;
libxml2 not found
Try setting LIBS and INC values on the command line
Or get libxml2 from
http://xmlsoft.org/
If you install via RPMs, make sure you also install the -devel
RPMs, as this is where the headers (.h files) are.
Also, you may try to run perl Makefile.PL with the DEBUG=1 parameter
to see the exact reason why the detection of libxml2 installation
failed or why Makefile.PL was not able to compile a test program.
DEATH
exit 0; # 0 recommended by http://cpantest.grango.org (Notes for CPAN Authors)
}
# _NOW_ write the Makefile
my $ldflags = delete $config{LDFLAGS};
if ($ldflags) {
$config{dynamic_lib} = { OTHERLDFLAGS => " $ldflags " };
}
WriteMakefile(
%INFO,
%config,
);
# Functions
# - these should really be in MakeMaker... But &shrug;
sub rm_f {
my @files = @_;
my @realfiles;
foreach (@files) {
push @realfiles, glob($_);
}
if (@realfiles) {
chmod(0777, @realfiles);
unlink(@realfiles);
}
}
sub rm_fr {
my @files = @_;
my @realfiles;
foreach (@files) {
push @realfiles, glob($_);
}
foreach my $file (@realfiles) {
if (-d $file) {
# warn("$file is a directory\n");
rm_fr("$file/*");
rm_fr("$file/.exists");
rmdir($file) || die "Couldn't remove $file: $!";
}
else {
# warn("removing $file\n");
chmod(0777, $file);
unlink($file);
}
}
}
sub xsystem {
my $command = shift;
if ($DEBUG) {
print $command, "\n";
if (system($command) != 0) {
die "system call to '$command' failed";
}
return 1;
}
open(OLDOUT, ">&STDOUT");
open(OLDERR, ">&STDERR");
open(STDOUT, ">$DEVNULL");
open(STDERR, ">$DEVNULL");
my $retval = system($command);
open(STDOUT, ">&OLDOUT");
open(STDERR, ">&OLDERR");
if ($retval != 0) {
die "system call to '$command' failed";
}
return 1;
}
sub backtick {
my $command = shift;
if ($DEBUG) {
print $command, "\n";
my $results = `$command`;
chomp $results;
if ($? != 0) {
die "backticks call to '$command' failed";
}
return $results;
}
open(OLDOUT, ">&STDOUT");
open(OLDERR, ">&STDERR");
open(STDOUT, ">$DEVNULL");
open(STDERR, ">$DEVNULL");
my $results = `$command`;
my $retval = $?;
open(STDOUT, ">&OLDOUT");
open(STDERR, ">&OLDERR");
if ($retval != 0) {
die "backticks call to '$command' failed";
}
chomp $results;
return $results;
}
sub try_link0 {
my ($src, $opt) = @_;
my $cfile = gensym();
#local $config{LIBS};
#$config{LIBS} .= $opt;
unless (mkdir(".testlink", 0777)) {
rm_fr(".testlink");
mkdir(".testlink", 0777) || die "Cannot create .testlink dir: $!";
}
chdir(".testlink");
open($cfile, ">Conftest.xs") || die "Cannot write to file Conftest.xs: $!";
print $cfile <<EOT;
#ifdef __cplusplus
extern "C" {
#endif
#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>
#ifdef __cplusplus
}
#endif
EOT
print $cfile $src;
print $cfile <<EOT;
MODULE = Conftest PACKAGE = Conftest
PROTOTYPES: DISABLE
EOT
close($cfile);
open($cfile, ">Conftest.pm") || die "Cannot write to file Conftest.pm: $!";
print $cfile <<'EOT';
package Conftest;
$VERSION = 1.0;
require DynaLoader;
@ISA = ('DynaLoader');
bootstrap Conftest $VERSION;
1;
EOT
close($cfile);
open($cfile, ">Makefile.PL") || die "Cannot write to file Makefile.PL: $!";
print $cfile <<'EOT';
use ExtUtils::MakeMaker;
my %config;
while($_ = shift @ARGV) {
my ($k, $v) = split /=/, $_, 2;
warn("$k = $v\n");
$config{$k} = $v;
}
WriteMakefile(NAME => "Conftest", VERSION_FROM => "Conftest.pm", %config);
EOT
close($cfile);
open($cfile, ">test.pl") || die "Cannot write to file test.pl: $!";
print $cfile <<EOT;
use Test; BEGIN { plan tests => 1; } END { ok(\$loaded) }
use Conftest; \$loaded++;
EOT
close($cfile);
my $quote = $is_Win32 ? '"' : "'";
xsystem("$^X Makefile.PL " . join(' ', map { "${quote}$_=$config{$_}${quote}" } keys %config));
# I am not shure if OTHERLDFLAGS is really required - at least the
# libraries to include do not belong here!
# I would assume a user to set OTHERLDFLAGS in the %config if they are
# really required. if done so, we don't have to pass them here ...
xsystem("$Config{make} test ${quote}OTHERLDFLAGS=${opt}${quote}");
} # end try_link0
sub try_link {
my $start_dir = cwd();
my $result = eval {
try_link0(@_);
};
warn $@ if $DEBUG && $@;
chdir($start_dir);
rm_fr(".testlink");
return $result;
}
sub have_library {
my ($lib, $func) = (@_, "blank");
printf("checking for %s() in -l%s... ", $func, $lib) if $func ne "blank";
printf("looking for -l%s... ", $lib) if $func eq "blank";
my $result;
if ($func) {
my $libs = $is_Win32 ? " $lib.lib " : "-l$lib";
# my $libs = "-l$lib";
if ($is_Win32) {
$result = try_link(<<"SRC", undef);
#include <windows.h>
#include <winsock.h>
#include <libxml/parser.h>
blank() { xmlInitParser(); return 0; }
int t() { ${func}(); return 0; }
SRC
unless ($result) {
$result = try_link(<<"SRC", undef);
#include <windows.h>
#include <winsock.h>
#include <libxml/parser.h>
blank() { xmlInitParser(); return 0; }
int t() { void ((*p)()); p = (void ((*)()))${func}; return 0; }
SRC
}
}
else {
$result = try_link(<<"SRC", undef);
#include <libxml/parser.h>
blank() { xmlInitParser(); return 0; }
int t() { ${func}(); return 0; }
SRC
}
}
unless ($result) {
print "no\n";
return 0;
}
if ($func ne "main") {
$config{DEFINE} .= uc(" -Dhave_$func");
}
print "yes\n";
return 1;
}
# try_libconfig class a generic config file and requests --version, --libs and
# --cflags
sub try_libconfig {
my $cfgscript = shift;
my $config = shift;
my $ver = backtick("$cfgscript --version");
if ( defined $ver ) {
$config->{LIBS} = backtick("$cfgscript --libs");
$config->{INC} = backtick("$cfgscript --cflags");
print "ok ($ver)\n";
}
else {
print "failed\n";
die "FAILED\n"; # strange error
}
}