Using other modules with Module::Build

braden has asked for the wisdom of the Perl Monks concerning the following question:

I'm trying to precompile a Parse::RecDescent grammar as part of building my module. In Build.PL I have:

use Module::Build;
use Parse::RecDescent;

my $class = Module::Build->subclass(code => <<'EOF');
sub ACTION_build {
    my $self = shift;

    open FILE, "grammar" or die "could not open \"grammar\": $!";
    my $grammar;
    {
        local $/;
        $grammar = <FILE>;
    }
    Parse::RecDescent->Precompile($grammar, "My::Grammar");
    $self->SUPER::ACTION_build;
}
EOF
[download]

Build is generated without incident; but when it is run I get:

Can't locate object method "Precompile" via package "Parse::RecDescent
+" (perhaps you forgot to load "Parse::RecDescent"?) at /home/braden/s
+rc/endoframe/literally/trunk/_build/lib/MyModuleBuilder.pm line 13, <
+FILE> line 1.
[download]

What's the proper way to tell Module::Build about Parse::RecDescent?

Comment on Using other modules with Module::Build Select or Download Code

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Re: Using other modules with Module::Build by ikegami (Patriarch) on Apr 10, 2006 at 23:02 UTC
As I understand things, the module needs to be loaded for the `./Build` step, but you are loading it during the `perl Build.PL` step. I think the following will do the trick: `my $class = Module::Build->subclass(code => <<'EOF'); sub ACTION_build { require Parse::RecDescent; ... } EOF` [download] I think this will also work: `my $class = Module::Build->subclass(code => <<'EOF'); use Parse::RecDescent; sub ACTION_build { ... } EOF` [download]	[reply] [d/l] [select]
Re^2: Using other modules with Module::Build by braden (Novice) on Apr 10, 2006 at 23:18 UTC
Indeed. Thanks!	[reply]