From a40129a0cb156969cb8ed1743ee1bf4267c3063a Mon Sep 17 00:00:00 2001
From: "John L. Villalovos" <john@sodarock.com>
Date: Mon, 15 Jun 2026 20:09:16 -0700
Subject: [PATCH] fix(build_sys): install the `intl` PHP extension

Upstream made the `intl` PHP extension a requirement[1]. Update the build
script to install it.

1. In commit ccd90236dc64645f3889e4efb684493dde68c949 in LibreBooking:
https://github.com/LibreBooking/librebooking/commit/ccd90236dc64645f3889e4efb684493dde68c949
---
 bin/build_sys.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bin/build_sys.sh b/bin/build_sys.sh
index b87f649..1c10a7c 100644
--- a/bin/build_sys.sh
+++ b/bin/build_sys.sh
@@ -15,6 +15,7 @@ apt-get upgrade --yes
 apt-get install --yes --no-install-recommends \
   libjpeg-dev \
   libldap-dev \
+  libicu-dev \
   libpng-dev \
   libfreetype6-dev \
   unzip
@@ -46,7 +47,7 @@ cp "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
 touch /usr/local/etc/php/conf.d/librebooking.ini
 
 docker-php-ext-configure gd --with-jpeg --with-freetype
-docker-php-ext-install mysqli gd ldap
+docker-php-ext-install mysqli gd ldap intl
 pecl install timezonedb
 docker-php-ext-enable timezonedb