3 <!ENTITY % scons SYSTEM "../scons.mod">
7 <section id="sect-Command"
8 xmlns="http://www.scons.org/dbxsd/v1.0"
9 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
10 xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0 http://www.scons.org/dbxsd/v1.0/scons.xsd">
11 <title>The Command Builder</title>
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25 The above copyright notice and this permission notice shall be included
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40 =head2 The C<Command> method
42 The C<Command> method is a catchall method which can be used to arrange for
43 any build action to be executed to update the target. For this command, a
44 target file and list of inputs is provided. In addition, a build action
45 is specified as the last argument. The build action is typically a
46 command line or lines, but may also contain Perl code to be executed;
47 see the section above on build actions for details.
49 The C<Command> method is called as follows:
51 Command $env <target>, <inputs>, <build action>;
53 The target is made dependent upon the list of input files specified, and the
54 inputs must be built successfully or Cons will not attempt to build the
57 To specify a command with multiple targets, you can specify a reference to a
58 list of targets. In Perl, a list reference can be created by enclosing a
59 list in square brackets. Hence the following command:
61 Command $env ['foo.h', 'foo.c'], 'foo.template', q(
65 could be used in a case where the command C<gen> creates two files, both
66 F<foo.h> and F<foo.c>.
77 <title>The &Command; Method</title>