Debian / Ubuntu / Devuan:

  • apt-get install apache2 bison enscript flex libapache2-mod-perl2 libcgi-pm-perl libsox-fmt-all mpg321 sox
  • cpanm Business::PayPal::IPN

Additional packages for Debian 8 (Jessie) and Ubuntu 14 (Trusty) and earlier:

  • apt-get install apache2-mpm-prefork

CentOS 8 and later:

  • dnf install -y alsa-lib-devel enscript expat-devel libao-devel libid3tag-devel libmad-devel mod_perl perl-CGI poppler-utils sox
  • cpanm https://download.integrics.com/perl/Business-PayPal-IPN/Business-PayPal-IPN-1.94.tar.gz

On machines running Rocky Linux:

  • dnf install -y alsa-lib-devel atk at-spi2-atk gtk3 enscript expat-devel libao-devel libdrm libid3tag-devel libmad-devel libXcomposite libXdamage mesa-libgbm mod_perl perl-CGI poppler-utils sox httpd
  • cpanm https://download.integrics.com/perl/Business-PayPal-IPN/Business-PayPal-IPN-1.94.tar.gz

Others:

  • yum -y install alsa-lib-devel enscript expat-devel libao-devel libid3tag-devel libmad-devel mod_perl perl-CGI poppler-utils sox
  • cpanm Business::PayPal::IPN