Alien::TALib is a perl module that enables the installation of the technical analysis library TA-lib from "http://ta-lib.org" on the system and easy access by other perl modules in the methodology cited by Alien::Base.
You can use it in the
Build.PL file if you're using Module::Build or
Makefile.PL file if you're using ExtUtils::MakeMaker.
my $talib = Alien::TALib->new; die "ta-lib is not installed" unless $talib->is_installed; my $build = Module::Build->new( ... extra_compiler_flags => $talib->cflags(), extra_linker_flags => $talib->libs(), ... );
Installing ta-lib on various platforms can be a hassle for the end-user. Hence the modules like Finance::Talib and PDL::Finance::Talib may choose to use Alien::TALib for automatically checking and verifying that there are already existing installs of ta-lib on the system and if not, installing the ta-lib libraries on the system.
This method finds an already installed ta-lib or can install it if not found or if the install is forced by setting the $Alien::TALib::FORCE variable to 1. The user can set TALIB_CFLAGS at runtime to override the cflags output of the object created with this function. The user can also set TALIB_LIBS at runtime to override the libs output of the object created with this function.
This method provides the compiler flags needed to use the library on the system.
This method provides the linker flags needed to use the library on the system.
This method returns the path of the ta-lib-config executable if it has been installed.
This method returns a boolean saying whether ta-lib has been installed or not.
This method provides the access to configuration information for the library on the system. More information can be seen in the module Alien::TALib::ConfigData.
Setting this value to 1 before running Build.PL will force the download and re-install of the ta-lib library.
Setting these environment variables before running Build.PL will force these values to be used to provide the output of cflags() and libs() functions. In this case is_installed() will always return 1 and ta_lib_config() will always return undefined.
Setting this environment variable before running Build.PL will configure Alien::TALib::ConfigData to use this value as the install prefix of ta-lib if it is built and installed.
Vikas N Kumar <firstname.lastname@example.org>
Copyright (C) 2013-2014. Vikas N Kumar <email@example.com>. All Rights Reserved.
This is free software. YOu can redistribute it or modify it under the terms of Perl itself.