From 1eb0cc55ff88099c9c88be0553822ac09faf2fd2 Mon Sep 17 00:00:00 2001
From: "CanbiZ (MickLesk)" <47820557+MickLesk@users.noreply.github.com>
Date: Mon, 9 Feb 2026 14:41:22 +0100
Subject: [PATCH] Use system ICU module and remove local build

Stop backing up and restoring a locally built libicu and instead symlink the distribution ICU module (/usr/lib/x86_64-linux-gnu/mod_icu.so) into /opt/linkding/libicu.so. Add libsqlite3-mod-icu to dependencies and create the symlink after building the frontend. Remove the entire manual download/compile flow for the SQLite ICU extension and its related backups, simplifying installation and relying on the system-provided ICU extension.
---
 ct/linkding.sh              |  5 ++---
 install/linkding-install.sh | 16 ++--------------
 2 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/ct/linkding.sh b/ct/linkding.sh
index c019e7df0..d3f78ce8f 100644
--- a/ct/linkding.sh
+++ b/ct/linkding.sh
@@ -37,7 +37,6 @@ function update_script() {
     msg_info "Backing up Data"
     cp -r /opt/linkding/data /opt/linkding_data_backup
     cp /opt/linkding/.env /opt/linkding_env_backup
-    cp /opt/linkding/libicu.so /opt/linkding_libicu_backup
     msg_ok "Backed up Data"
 
     CLEAN_INSTALL=1 fetch_and_deploy_gh_release "linkding" "sissbruecker/linkding"
@@ -45,8 +44,8 @@ function update_script() {
     msg_info "Restoring Data"
     cp -r /opt/linkding_data_backup/. /opt/linkding/data
     cp /opt/linkding_env_backup /opt/linkding/.env
-    cp /opt/linkding_libicu_backup /opt/linkding/libicu.so
-    rm -rf /opt/linkding_data_backup /opt/linkding_env_backup /opt/linkding_libicu_backup
+    rm -rf /opt/linkding_data_backup /opt/linkding_env_backup
+    ln -sf /usr/lib/x86_64-linux-gnu/mod_icu.so /opt/linkding/libicu.so
     msg_ok "Restored Data"
 
     msg_info "Updating ${APP}"
diff --git a/install/linkding-install.sh b/install/linkding-install.sh
index d60ea4a1e..e2080a082 100644
--- a/install/linkding-install.sh
+++ b/install/linkding-install.sh
@@ -22,6 +22,7 @@ $STD apt-get install -y \
   libpq-dev \
   libicu-dev \
   libsqlite3-dev \
+  libsqlite3-mod-icu \
   libffi-dev
 msg_ok "Installed Dependencies"
 
@@ -33,22 +34,9 @@ msg_info "Building Frontend"
 cd /opt/linkding
 $STD npm ci
 $STD npm run build
+ln -sf /usr/lib/x86_64-linux-gnu/mod_icu.so /opt/linkding/libicu.so
 msg_ok "Built Frontend"
 
-msg_info "Compiling SQLite ICU Extension"
-cd /tmp
-SQLITE_RELEASE_YEAR=2023
-SQLITE_RELEASE=3430000
-$STD wget https://www.sqlite.org/${SQLITE_RELEASE_YEAR}/sqlite-amalgamation-${SQLITE_RELEASE}.zip
-$STD unzip -o sqlite-amalgamation-${SQLITE_RELEASE}.zip
-cp sqlite-amalgamation-${SQLITE_RELEASE}/sqlite3.h .
-cp sqlite-amalgamation-${SQLITE_RELEASE}/sqlite3ext.h .
-$STD wget "https://www.sqlite.org/src/raw/ext/icu/icu.c?name=91c021c7e3e8bbba286960810fa303295c622e323567b2e6def4ce58e4466e60" -O icu.c
-$STD gcc -fPIC -shared icu.c $(pkg-config --libs --cflags icu-uc icu-io) -o /opt/linkding/libicu.so
-rm -rf sqlite-amalgamation-${SQLITE_RELEASE}* icu.c sqlite3.h sqlite3ext.h
-cd /opt/linkding
-msg_ok "Compiled SQLite ICU Extension"
-
 msg_info "Setting up linkding"
 rm -f bookmarks/settings/dev.py
 touch bookmarks/settings/custom.py