Move waf into third_party/.
[obnox/samba/samba-obnox.git] / third_party / waf / wafadmin / Tools / perl.py
1 #!/usr/bin/env python
2 # encoding: utf-8
3 # andersg at 0x63.nu 2007
4
5 import os
6 import Task, Options, Utils
7 from Configure import conf
8 from TaskGen import extension, taskgen, feature, before
9
10 xsubpp_str = '${PERL} ${XSUBPP} -noprototypes -typemap ${EXTUTILS_TYPEMAP} ${SRC} > ${TGT}'
11 EXT_XS = ['.xs']
12
13 @before('apply_incpaths', 'apply_type_vars', 'apply_lib_vars')
14 @feature('perlext')
15 def init_perlext(self):
16         self.uselib = self.to_list(getattr(self, 'uselib', ''))
17         if not 'PERL' in self.uselib: self.uselib.append('PERL')
18         if not 'PERLEXT' in self.uselib: self.uselib.append('PERLEXT')
19         self.env['shlib_PATTERN'] = self.env['perlext_PATTERN']
20
21 @extension(EXT_XS)
22 def xsubpp_file(self, node):
23         outnode = node.change_ext('.c')
24         self.create_task('xsubpp', node, outnode)
25         self.allnodes.append(outnode)
26
27 Task.simple_task_type('xsubpp', xsubpp_str, color='BLUE', before='cc cxx', shell=False)
28
29 @conf
30 def check_perl_version(conf, minver=None):
31         """
32         Checks if perl is installed.
33
34         If installed the variable PERL will be set in environment.
35
36         Perl binary can be overridden by --with-perl-binary config variable
37
38         """
39
40         if getattr(Options.options, 'perlbinary', None):
41                 conf.env.PERL = Options.options.perlbinary
42         else:
43                 conf.find_program('perl', var='PERL', mandatory=True)
44
45         try:
46                 version = Utils.cmd_output([conf.env.PERL, '-e', 'printf "%vd",$^V'])
47         except:
48                 conf.fatal('could not determine the perl version')
49
50         conf.env.PERL_VERSION = version
51         cver = ''
52         if minver:
53                 try:
54                         ver = tuple(map(int, version.split('.')))
55                 except:
56                         conf.fatal('unsupported perl version %r' % version)
57                 if ver < minver:
58                         conf.fatal('perl is too old')
59
60                 cver = '.'.join(map(str,minver))
61         conf.check_message('perl', cver, True, version)
62
63 @conf
64 def check_perl_module(conf, module):
65         """
66         Check if specified perlmodule is installed.
67
68         Minimum version can be specified by specifying it after modulename
69         like this:
70
71         conf.check_perl_module("Some::Module 2.92")
72         """
73         cmd = [conf.env['PERL'], '-e', 'use %s' % module]
74         r = Utils.pproc.call(cmd, stdout=Utils.pproc.PIPE, stderr=Utils.pproc.PIPE) == 0
75         conf.check_message("perl module %s" % module, "", r)
76         return r
77
78 @conf
79 def check_perl_ext_devel(conf):
80         """
81         Check for configuration needed to build perl extensions.
82
83         Sets different xxx_PERLEXT variables in the environment.
84
85         Also sets the ARCHDIR_PERL variable useful as installation path,
86         which can be overridden by --with-perl-archdir
87         """
88         if not conf.env.PERL:
89                 conf.fatal('perl detection is required first')
90
91         def read_out(cmd):
92                 return Utils.to_list(Utils.cmd_output([conf.env.PERL, '-MConfig', '-e', cmd]))
93
94         conf.env.LINKFLAGS_PERLEXT = read_out('print $Config{lddlflags}')
95         conf.env.CPPPATH_PERLEXT   = read_out('print "$Config{archlib}/CORE"')
96         conf.env.CCFLAGS_PERLEXT   = read_out('print "$Config{ccflags} $Config{cccdlflags}"')
97         conf.env.XSUBPP            = read_out('print "$Config{privlib}/ExtUtils/xsubpp$Config{exe_ext}"')
98         conf.env.EXTUTILS_TYPEMAP  = read_out('print "$Config{privlib}/ExtUtils/typemap"')
99         conf.env.perlext_PATTERN   = '%s.' + read_out('print $Config{dlext}')[0]
100
101         if getattr(Options.options, 'perlarchdir', None):
102                 conf.env.ARCHDIR_PERL = Options.options.perlarchdir
103         else:
104                 conf.env.ARCHDIR_PERL = read_out('print $Config{sitearch}')[0]
105
106 def set_options(opt):
107         opt.add_option("--with-perl-binary", type="string", dest="perlbinary", help = 'Specify alternate perl binary', default=None)
108         opt.add_option("--with-perl-archdir", type="string", dest="perlarchdir", help = 'Specify directory where to install arch specific files', default=None)