From ef5b40c70ba61dd770a572d03a33c089da96d78d Mon Sep 17 00:00:00 2001
From: Alexandre Bouvier <contact@amb.tf>
Date: Sat, 7 Feb 2026 14:22:32 +0000
Subject: [PATCH] cmake: prefer system cli11 library (#3999)

---
 CMakeLists.txt           | 1 +
 externals/CMakeLists.txt | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2afe3a49e..dc59f1af1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -221,6 +221,7 @@ endif()
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 find_package(Boost 1.84.0 CONFIG)
+find_package(CLI11 2.6.1 CONFIG)
 find_package(FFmpeg 5.1.2 MODULE)
 find_package(fmt 10.2.0 CONFIG)
 find_package(glslang 15 CONFIG)
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index db03e7679..80a6ff7e2 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -271,7 +271,8 @@ add_subdirectory(json)
 add_subdirectory(miniz)
 
 # cli11
-set(CLI11_BUILD_TESTS OFF CACHE BOOL "" FORCE)
-set(CLI11_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-
-add_subdirectory(CLI11)
\ No newline at end of file
+if (NOT TARGET CLI11::CLI11)
+    set(CLI11_BUILD_TESTS OFF CACHE BOOL "" FORCE)
+    set(CLI11_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+    add_subdirectory(CLI11)
+endif()