From 3706d482b0c8a9eef839b90223af4052f20586ad Mon Sep 17 00:00:00 2001
From: Maxim Cournoyer <maxim@guixotic.coop>
Date: Thu, 24 Jul 2025 10:07:03 +0900
Subject: [PATCH] externals: allow using watcher header library from the system

* CMake/DolphinLibraryTools.cmake
(dolphin_find_optional_system_library_include): New function.
* CMakeLists.txt: Use it to locate the watcher header-only library.
---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c277e2a10a4..f52b7d8f9f8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -786,7 +786,9 @@ if (USE_RETRO_ACHIEVEMENTS)
 	add_subdirectory(Externals/rcheevos)
 endif()
 
-add_subdirectory(Externals/watcher)
+dolphin_find_optional_system_library_pkgconfig(
+  WATCHER watcher watcher Externals/watcher
+)
 
 ########################################
 # Pre-build events: Define configuration variables and write SCM info header