From 1e82342033110edf7fa5bf486099cf45cb447661 Mon Sep 17 00:00:00 2001
From: lat9nq <22451773+lat9nq@users.noreply.github.com>
Date: Tue, 9 Jan 2024 17:22:53 -0500
Subject: [PATCH] CMake: Find and require intl

It's not guaranteed for Apple systems to have this library installed, apparently, so check for it.
---
 CMakeLists.txt              | 4 ++++
 externals/tz/CMakeLists.txt | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87c8950..9986f6d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,5 +4,9 @@ project(tzdb2nx VERSION 1.0)
 
 set(CMAKE_CXX_STANDARD 20)
 
+if (APPLE)
+    find_package(Intl REQUIRED)
+endif()
+
 add_subdirectory(externals)
 add_subdirectory(src)
diff --git a/externals/tz/CMakeLists.txt b/externals/tz/CMakeLists.txt
index 1bec606..c1288e7 100644
--- a/externals/tz/CMakeLists.txt
+++ b/externals/tz/CMakeLists.txt
@@ -15,7 +15,7 @@ if (NOT EXISTS "${TZ_DIR}" OR NOT EXISTS "${TZIF_LIST_FILE}")
     file(COPY ${TZ_SOURCE_DIR}/ DESTINATION ${TZ_TMP_SOURCE_DIR})
 
     if (APPLE)
-        set(TZ_MAKEFLAGS "LDLIBS=-lintl")
+        set(TZ_MAKEFLAGS "LDLIBS=${Intl_LIBRARY}")
     else()
         set(TZ_MAKEFLAGS)
     endif()