1"""engine.SCons.Platform.aix
2
3Platform-specific initialization for IBM AIX systems.
4
5There normally shouldn't be any need to import this module directly.  It
6will usually be imported through the generic SCons.Platform.Platform()
7selection method.
8"""
9
10#
11# Copyright (c) 2001 - 2014 The SCons Foundation
12#
13# Permission is hereby granted, free of charge, to any person obtaining
14# a copy of this software and associated documentation files (the
15# "Software"), to deal in the Software without restriction, including
16# without limitation the rights to use, copy, modify, merge, publish,
17# distribute, sublicense, and/or sell copies of the Software, and to
18# permit persons to whom the Software is furnished to do so, subject to
19# the following conditions:
20#
21# The above copyright notice and this permission notice shall be included
22# in all copies or substantial portions of the Software.
23#
24# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
25# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
26# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31#
32
33__revision__ = "src/engine/SCons/Platform/aix.py  2014/07/05 09:42:21 garyo"
34
35import os
36import subprocess
37
38import posix
39
40import SCons.Util
41import SCons.Action
42
43def get_xlc(env, xlc=None, packages=[]):
44    # Use the AIX package installer tool lslpp to figure out where a
45    # given xl* compiler is installed and what version it is.
46    xlcPath = None
47    xlcVersion = None
48
49    if xlc is None:
50        xlc = env.get('CC', 'xlc')
51    if SCons.Util.is_List(xlc):
52        xlc = xlc[0]
53    for package in packages:
54        # find the installed filename, which may be a symlink as well
55        pipe = SCons.Action._subproc(env, ['lslpp', '-fc', package],
56                stdin = 'devnull',
57                stderr = 'devnull',
58                stdout = subprocess.PIPE)
59        # output of lslpp is something like this:
60        #     #Path:Fileset:File
61        #     /usr/lib/objrepos:vac.C 6.0.0.0:/usr/vac/exe/xlCcpp
62        #     /usr/lib/objrepos:vac.C 6.0.0.0:/usr/vac/bin/xlc_r -> /usr/vac/bin/xlc
63        for line in pipe.stdout:
64            if xlcPath:
65                continue # read everything to let lslpp terminate
66            fileset, filename = line.split(':')[1:3]
67            filename = filename.split()[0]
68            if ('/' in xlc and filename == xlc) \
69            or ('/' not in xlc and filename.endswith('/' + xlc)):
70                xlcVersion = fileset.split()[1]
71                xlcPath, sep, xlc = filename.rpartition('/')
72            pass
73        pass
74    return (xlcPath, xlc, xlcVersion)
75
76def generate(env):
77    posix.generate(env)
78    #Based on AIX 5.2: ARG_MAX=24576 - 3000 for environment expansion
79    env['MAXLINELENGTH']  = 21576
80
81# Local Variables:
82# tab-width:4
83# indent-tabs-mode:nil
84# End:
85# vim: set expandtab tabstop=4 shiftwidth=4:
86