Composer install fails on centOS 7

[iliya-yordanov]

Hey there

Trying the composer install but it fails... any idea?

/usr/local/bin/composer require edamov/pushok
Using version ^0.2.0 for edamov/pushok
./composer.json has been created
Running composer update edamov/pushok
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - spomky-labs/jose[v6.1.1, ..., v6.1.7] require fgrosse/phpasn1 ^1.5 -> satisfiable by fgrosse/phpasn1[1.5.0, ..., v1.5.4].
    - edamov/pushok[0.2.1, ..., 0.2.6] require lib-curl >=7.46.0 -> it has the wrong version installed or is missing from your system, make sure to load the extension providing it.
    - fgrosse/phpasn1[1.5.0, ..., v1.5.4] require ext-gmp * -> it is missing from your system. Install or enable PHP's gmp extension.
    - edamov/pushok 0.2.0 requires spomky-labs/jose ^6.1.1 -> satisfiable by spomky-labs/jose[v6.1.1, ..., v6.1.7].
    - Root composer.json requires edamov/pushok ^0.2.0 -> satisfiable by edamov/pushok[0.2.0, ..., 0.2.6].

To enable extensions, verify that they are enabled in your .ini files:
    - /etc/php.ini
    - /etc/php.d/20-bz2.ini
    - /etc/php.d/20-calendar.ini
    - /etc/php.d/20-ctype.ini
    - /etc/php.d/20-curl.ini
    - /etc/php.d/20-dom.ini
    - /etc/php.d/20-exif.ini
    - /etc/php.d/20-fileinfo.ini
    - /etc/php.d/20-ftp.ini
    - /etc/php.d/20-gd.ini
    - /etc/php.d/20-gettext.ini
    - /etc/php.d/20-iconv.ini
    - /etc/php.d/20-intl.ini
    - /etc/php.d/20-json.ini
    - /etc/php.d/20-mbstring.ini
    - /etc/php.d/20-mysqlnd.ini
    - /etc/php.d/20-pdo.ini
    - /etc/php.d/20-phar.ini
    - /etc/php.d/20-posix.ini
    - /etc/php.d/20-shmop.ini
    - /etc/php.d/20-simplexml.ini
    - /etc/php.d/20-sockets.ini
    - /etc/php.d/20-sqlite3.ini
    - /etc/php.d/20-sysvmsg.ini
    - /etc/php.d/20-sysvsem.ini
    - /etc/php.d/20-sysvshm.ini
    - /etc/php.d/20-tokenizer.ini
    - /etc/php.d/20-xml.ini
    - /etc/php.d/20-xmlwriter.ini
    - /etc/php.d/20-xsl.ini
    - /etc/php.d/30-mcrypt.ini
    - /etc/php.d/30-mysqli.ini
    - /etc/php.d/30-pdo_mysql.ini
    - /etc/php.d/30-pdo_sqlite.ini
    - /etc/php.d/30-wddx.ini
    - /etc/php.d/30-xmlreader.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

Installation failed, deleting ./composer.json.

[iliya-yordanov]

Nevermind, solved.

[amk9889]

how

[iliya-yordanov]

Installed another lib - node-apn