From c011e491120a014c5fa4e25a3e4c07bbf087818d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Kapu=C5=9Bci=C5=84ski?= <tomaszkax86@gmail.com>
Date: Sat, 26 Feb 2022 21:42:09 +0100
Subject: [PATCH] Another fix

---
 CMakeLists.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4bd59154..b1f0e9cf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -320,8 +320,13 @@ if(NOT TARGET glm::glm)
     add_library(glm::glm ALIAS glm)
 endif()
 
-add_subdirectory(lib/json)
-find_package(nlohmann_json CONFIG REQUIRED)
+find_package(nlohmann_json 3.10 QUIET)
+
+if(NOT nlohmann_json_FOUND)
+    message(STATUS "Using nlohmann_json git submodule")
+    set(JSON_BuildTests OFF CACHE INTERNAL "")
+    add_subdirectory(lib/json)
+endif()
 
 set(Boost_USE_STATIC_LIBS ${BOOST_STATIC})
 set(Boost_USE_MULTITHREADED ON)