simplified makefile by using php-config to find the entire include path
simplified makefile by using php-config to find the entire include path

carlmcdade/PHP-CPP,sjinks/PHP-CPP,dreamsxin/PHP-CPP,CopernicaMarketingSoftware/PHP-CPP-LEGACY,sjinks/PHP-CPP,sjinks/PHP-CPP,carlmcdade/PHP-CPP,dreamsxin/PHP-CPP,carlmcdade/PHP-CPP,sjinks/PHP-CPP,carlmcdade/PHP-CPP,CopernicaMarketingSoftware/PHP-CPP,CopernicaMarketingSoftware/PHP-CPP-LEGACY,CopernicaMarketingSoftware/PHP-CPP