#!/bin/sh

check_app()
{
    which $1 2>/dev/null 1>/dev/null
    local result=$?

    echo -n "Checking $1..."

    if [ $result -gt 0 ]; then
	echo 'Not found'
	exit 1
    else
	echo 'Found'
    fi
}

check_pkg()
{
    $pkg | grep $1 2>/dev/null 1>/dev/null
    local result=$?
    echo -n "Checking $1..."

    if [ $result -gt 0 ]; then
	echo 'Not found'
	exit 1
    else
	echo 'Found'
    fi
}

fedora()
{
    check_app gcc
    check_app make
    check_pkg glibc-static
}

osname=`cat /etc/os-release | grep ^ID= | sed -E 's/.*=(.*)/\1/'`
osver=`cat /etc/os-release | grep ^VERSION_ID= | sed -E 's/.*=(.*)/\1/g'`

case $osname in
    fedora)
	pkg="dnf list installed"
	fedora
	;;
    freebsd)
    ;;
esac

echo
echo 'You can proceed building Alex GNU/Linux'