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# please insert nothing before this line: -*- mode: cperl; cperl-indent-level: 4; cperl-continued-statement-offset: 4; indent-tabs-mode: nil -*-
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package ModPerl::MM;
use strict;
use warnings;
use ExtUtils::MakeMaker ();
use ExtUtils::Install ();
use Cwd ();
use Carp;
our %PM; #add files to installation
# MM methods that this package overrides
no strict 'refs';
my $stash = \%{__PACKAGE__ . '::MY::'};
my @methods = grep *{$stash->{$_}}{CODE}, keys %$stash;
my $eu_mm_mv_all_methods_overriden = 0;
use strict 'refs';
sub override_eu_mm_mv_all_methods {
my @methods = @_;
my $orig_sub = \&ExtUtils::MakeMaker::mv_all_methods;
no warnings 'redefine';
*ExtUtils::MakeMaker::mv_all_methods = sub {
# do the normal move
$orig_sub->(@_);
# for all the overloaded methods mv_all_method installs a stab
# eval "package MY; sub $method { shift->SUPER::$method(\@_); }";
# therefore we undefine our methods so on the recursive invocation of
# Makefile.PL they will be undef, unless defined in Makefile.PL
# and my_import will override these methods properly
for my $sym (@methods) {
my $name = "MY::$sym";
undef &$name if defined &$name;
}
};
}
sub add_dep {
my ($string, $targ, $add) = @_;
$$string =~ s/($targ\s+::)/$1 $add/;
}
sub add_dep_before {
my ($string, $targ, $before_targ, $add) = @_;
$$string =~ s/($targ\s+::.*?) ($before_targ)/$1 $add $2/;
}
sub add_dep_after {
my ($string, $targ, $after_targ, $add) = @_;
$$string =~ s/($targ\s+::.*?$after_targ)/$1 $add/;
}
my $build;
sub build_config {
my $key = shift;
require Apache2::Build;
$build ||= Apache2::Build->build_config;
return $build unless $key;
$build->{$key};
}
#the parent WriteMakefile moves MY:: methods into a different class
#so alias them each time WriteMakefile is called in a subdir
sub my_import {
my $package = shift;
no strict 'refs';
my $stash = \%{$package . '::MY::'};
for my $sym (keys %$stash) {
next unless *{$stash->{$sym}}{CODE};
my $name = "MY::$sym";
# the method is defined in Makefile.PL
next if defined &$name;
# do the override behind the scenes
*$name = *{$stash->{$sym}}{CODE};
}
}
my @default_opts = qw(CCFLAGS LIBS INC OPTIMIZE LDDLFLAGS TYPEMAPS);
my @default_dlib_opts = qw(OTHERLDFLAGS);
my @default_macro_opts = ();
my %opts = (
CCFLAGS => sub { $build->{MODPERL_CCOPTS} },
LIBS => sub { join ' ', $build->apache_libs, $build->modperl_libs },
INC => sub { $build->inc; },
OPTIMIZE => sub { $build->perl_config('optimize'); },
LDDLFLAGS => sub { $build->perl_config('lddlflags'); },
TYPEMAPS => sub { $build->typemaps; },
OTHERLDFLAGS => sub { $build->otherldflags; },
);
sub get_def_opt {
my $opt = shift;
return $opts{$opt}->() if exists $opts{$opt};
# handle cases when Makefile.PL wants an option we don't have a
# default for. XXX: some options expect [] rather than scalar.
Carp::carp("!!! no default argument defined for argument: $opt");
return '';
}
sub WriteMakefile {
my %args = @_;
# override ExtUtils::MakeMaker::mv_all_methods
# can't do that on loading since ModPerl::MM is also use()'d
# by ModPerl::BuildMM which itself overrides it
unless ($eu_mm_mv_all_methods_overriden) {
override_eu_mm_mv_all_methods(@methods);
$eu_mm_mv_all_methods_overriden++;
}
$build ||= build_config();
my_import(__PACKAGE__);
# set top-level WriteMakefile's values if weren't set already
for my $o (@default_opts) {
$args{$o} = get_def_opt($o) unless exists $args{$o}; # already defined
}
# set dynamic_lib-level WriteMakefile's values if weren't set already
$args{dynamic_lib} ||= {};
my $dlib = $args{dynamic_lib};
for my $o (@default_dlib_opts) {
$dlib->{$o} = get_def_opt($o) unless exists $dlib->{$o};
}
# set macro-level WriteMakefile's values if weren't set already
$args{macro} ||= {};
my $macro = $args{macro};
for my $o (@default_macro_opts) {
$macro->{$o} = get_def_opt($o) unless exists $macro->{$o};
}
ExtUtils::MakeMaker::WriteMakefile(%args);
}
#### MM overrides ####
sub ModPerl::MM::MY::post_initialize {
my $self = shift;
$build ||= build_config();
my $pm = $self->{PM};
while (my ($k, $v) = each %PM) {
if (-e $k) {
$pm->{$k} = $v;
}
}
'';
}
1;
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