Estou tentando executar a instalação do compositor para um projeto laravel. O erro é o seguinte:

Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Warning: The lock file is not up to date with the latest changes in composer.json. You may be getting outdated dependencies. Run update to update them.
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for namshi/jose 5.0.2 -> satisfiable by namshi/jose[5.0.2].
    - namshi/jose 5.0.2 requires lib-openssl * -> the requested linked library openssl has the wrong version installed or is missing from your system, make sure to have the extension providing it.
  Problem 2
    - namshi/jose 5.0.2 requires lib-openssl * -> the requested linked library openssl has the wrong version installed or is missing from your system, make sure to have the extension providing it.
    - tymon/jwt-auth 0.5.9 requires namshi/jose 5.0.* -> satisfiable by namshi/jose[5.0.2].
    - Installation request for tymon/jwt-auth 0.5.9 -> satisfiable by tymon/jwt-auth[0.5.9].

Eu olhei para isso, parece que o PHP no meu Mac não tem openSSL. Mas quando eu corro

php -m

Há um módulo openssl na lista.

Portanto, não entendo qual é o problema.

Aqui está o meu compositor.json

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "php": ">=5.5.9",
    "laravel/framework": "5.1.*",
    "tymon/jwt-auth": "0.5.*",
    "barryvdh/laravel-ide-helper": "^2.1",
    "fzaninotto/faker": "~1.4",
    "zizaco/entrust": "~2.0"
},
"require-dev": {

    "mockery/mockery": "0.9.*",
    "phpunit/phpunit": "~4.0",
    "phpspec/phpspec": "~2.1"
},
"autoload": {
    "classmap": [
        "database",
        "app/Services"

    ],
    "psr-4": {
        "App\\": "app/"
    }
},
"autoload-dev": {
    "classmap": [
        "tests/TestCase.php"
    ]
},
"scripts": {
    "post-install-cmd": [
        "php artisan clear-compiled",
        "php artisan optimize"
    ],
    "pre-update-cmd": [
        "php artisan clear-compiled"
    ],
    "post-update-cmd": [
        "php artisan optimize"
    ],
    "post-root-package-install": [
        "php -r \"copy('.env.example', '.env');\""
    ],
    "post-create-project-cmd": [
        "php artisan key:generate"
    ]
},
"config": {
    "preferred-install": "dist"
}

}

PS: Acabei de adquirir um Mac pro novinho em folha, não tenho tempo para instalar o MAMP e o Xcode, então acho que o php que usei foi construído internamente