aboutsummaryrefslogtreecommitdiffstats
path: root/waflib/Tools/perl.py
blob: 32b03fbaa711cb75c9726a95fd691b5aeecbb7a2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
#!/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

@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

@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)

class xsubpp(Task.Task):
	"""
	Process *.xs* files
	"""
	run_str = '${PERL} ${XSUBPP} -noprototypes -typemap ${EXTUTILS_TYPEMAP} ${SRC} > ${TGT}'
	color   = 'BLUE'
	ext_out = ['.h']

@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

@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

@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}')

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)