#!/usr/bin/env python
# encoding: utf-8
# andersg at 0x63.nu 2007
# Thomas Nagy 2016-2018 (ita)
"""
Support for Perl extensions. A C/C++ compiler is required::
def options(opt):
opt.load('compiler_c perl')
def configure(conf):
conf.load('compiler_c perl')
conf.check_perl_version((5,6,0))
conf.check_perl_ext_devel()
conf.check_perl_module('Cairo')
conf.check_perl_module('Devel::PPPort 4.89')
def build(bld):
bld(
features = 'c cshlib perlext',
source = 'Mytest.xs',
target = 'Mytest',
install_path = '${ARCHDIR_PERL}/auto')
bld.install_files('${ARCHDIR_PERL}', 'Mytest.pm')
"""
import os
from waflib import Task, Options, Utils, Errors
from waflib.Configure import conf
from waflib.TaskGen import extension, feature, before_method
[docs]@before_method('apply_incpaths', 'apply_link', 'propagate_uselib_vars')
@feature('perlext')
def init_perlext(self):
"""
Change the values of *cshlib_PATTERN* and *cxxshlib_PATTERN* to remove the
*lib* prefix from library names.
"""
self.uselib = self.to_list(getattr(self, 'uselib', []))
if not 'PERLEXT' in self.uselib:
self.uselib.append('PERLEXT')
self.env.cshlib_PATTERN = self.env.cxxshlib_PATTERN = self.env.perlext_PATTERN
[docs]@extension('.xs')
def xsubpp_file(self, node):
"""
Create :py:class:`waflib.Tools.perl.xsubpp` tasks to process *.xs* files
"""
outnode = node.change_ext('.c')
self.create_task('xsubpp', node, outnode)
self.source.append(outnode)
[docs]class xsubpp(Task.Task):
"""
Process *.xs* files
"""
run_str = '${PERL} ${XSUBPP} -noprototypes -typemap ${EXTUTILS_TYPEMAP} ${SRC} > ${TGT}'
color = 'BLUE'
ext_out = ['.h']
[docs]@conf
def check_perl_version(self, minver=None):
"""
Check if Perl is installed, and set the variable PERL.
minver is supposed to be a tuple
"""
res = True
if minver:
cver = '.'.join(map(str,minver))
else:
cver = ''
self.start_msg('Checking for minimum perl version %s' % cver)
perl = self.find_program('perl', var='PERL', value=getattr(Options.options, 'perlbinary', None))
version = self.cmd_and_log(perl + ["-e", 'printf \"%vd\", $^V'])
if not version:
res = False
version = "Unknown"
elif not minver is None:
ver = tuple(map(int, version.split(".")))
if ver < minver:
res = False
self.end_msg(version, color=res and 'GREEN' or 'YELLOW')
return res
[docs]@conf
def check_perl_module(self, module):
"""
Check if specified perlmodule is installed.
The minimum version can be specified by specifying it after modulename
like this::
def configure(conf):
conf.check_perl_module("Some::Module 2.92")
"""
cmd = self.env.PERL + ['-e', 'use %s' % module]
self.start_msg('perl module %s' % module)
try:
r = self.cmd_and_log(cmd)
except Errors.WafError:
self.end_msg(False)
return None
self.end_msg(r or True)
return r
[docs]@conf
def check_perl_ext_devel(self):
"""
Check for configuration needed to build perl extensions.
Sets different xxx_PERLEXT variables in the environment.
Also sets the ARCHDIR_PERL variable useful as installation path,
which can be overridden by ``--with-perl-archdir`` option.
"""
env = self.env
perl = env.PERL
if not perl:
self.fatal('find perl first')
def cmd_perl_config(s):
return perl + ['-MConfig', '-e', 'print \"%s\"' % s]
def cfg_str(cfg):
return self.cmd_and_log(cmd_perl_config(cfg))
def cfg_lst(cfg):
return Utils.to_list(cfg_str(cfg))
def find_xsubpp():
for var in ('privlib', 'vendorlib'):
xsubpp = cfg_lst('$Config{%s}/ExtUtils/xsubpp$Config{exe_ext}' % var)
if xsubpp and os.path.isfile(xsubpp[0]):
return xsubpp
return self.find_program('xsubpp')
env.LINKFLAGS_PERLEXT = cfg_lst('$Config{lddlflags}')
env.INCLUDES_PERLEXT = cfg_lst('$Config{archlib}/CORE')
env.CFLAGS_PERLEXT = cfg_lst('$Config{ccflags} $Config{cccdlflags}')
env.EXTUTILS_TYPEMAP = cfg_lst('$Config{privlib}/ExtUtils/typemap')
env.XSUBPP = find_xsubpp()
if not getattr(Options.options, 'perlarchdir', None):
env.ARCHDIR_PERL = cfg_str('$Config{sitearch}')
else:
env.ARCHDIR_PERL = getattr(Options.options, 'perlarchdir')
env.perlext_PATTERN = '%s.' + cfg_str('$Config{dlext}')
[docs]def options(opt):
"""
Add the ``--with-perl-archdir`` and ``--with-perl-binary`` command-line options.
"""
opt.add_option('--with-perl-binary', type='string', dest='perlbinary', help = 'Specify alternate perl binary', default=None)
opt.add_option('--with-perl-archdir', type='string', dest='perlarchdir', help = 'Specify directory where to install arch specific files', default=None)
