1Module::Install::Can(3)User Contributed Perl DocumentatioMnodule::Install::Can(3)
2
3
4
6 Module::Install::Can - Utility functions for capability detection
7
9 "Module::Install::Can" contains a number of functions for authors to
10 use when creating customised smarter installers. The functions simplify
11 standard tests so that you can express your dependencies and conditions
12 much more simply, and make your installer much easier to maintain.
13
15 can_use
16 can_use('Module::Name');
17 can_use('Module::Name', 1.23);
18
19 The "can_use" function tests the ability to load a specific named
20 module. Currently it will also actually load the module in the process,
21 although this may change in the future.
22
23 Takes an optional second param of a version number. The currently
24 installed version of the module will be tested to make sure it is equal
25 to or greater than the specified version.
26
27 Returns true if the module can be loaded, or false (in both scalar or
28 list context) if not.
29
30 can_run
31 can_run('cvs');
32
33 The "can_run" function tests the ability to run a named command or
34 program on the local system.
35
36 Returns true if so, or false (both in scalar and list context) if not.
37
38 can_cc
39 can_cc();
40
41 The "can_cc" function tests the ability to locate a functioning C
42 compiler on the local system. Returns true if the C compiler can be
43 found, or false (both in scalar and list context) if not.
44
45 can_xs
46 can_xs();
47
48 The "can_xs" function tests for a functioning C compiler and the
49 correct headers to build XS modules against the current instance of
50 Perl.
51
53 Currently, the use of a "can_foo" command in a single problem domain
54 (for example "can_use") results in the inclusion of additional
55 functionality from different problem domains (for example "can_run").
56
57 This module should ultimately be broken up, and the individual
58 functions redestributed to different domain-specific extensions.
59
61 Audrey Tang <autrijus@autrijus.org>
62
63 Adam Kennedy <adamk@cpan.org>
64
66 Module::Install, Class::Inspector
67
69 Copyright 2006 - 2012 Audrey Tang, Adam Kennedy.
70
71 This program is free software; you can redistribute it and/or modify it
72 under the same terms as Perl itself.
73
74 See <http://www.perl.com/perl/misc/Artistic.html>
75
76
77
78perl v5.16.3 2012-03-01 Module::Install::Can(3)