install-mailparse.sh

#!/bin/sh

# Change to temp dir
cd /tmp

# Install php dev package if not installed
apt-get install php-dev

# Download last mailparse version
pecl download mailparse

# Actually its 3.1.0, check if there is a newer version
# and modify the following lines
tar xzf mailparse-3.1.0.tgz
cd mailparse-3.1.0

# Run phpize
phpize

# Configure mailparse
./configure

# THE MAGIC:
# Disable the exception for mbstring
sed -i \
  's/^\(#error .* the mbstring extension!\)/\/\/\1/' \
  mailparse.c
  

# Make it
make
make install

##############################################################
# PHP Configuration
# This could be configured differently depending on the system
##############################################################

# Add php module 
echo "extension=mailparse.so" > /etc/php/7.3/mods-available/mailparse.ini

# Activate php module
phpenmod mailparse