From: Michael R. Crusoe <michael.crusoe@gmail.com>
Subject: Enable running the tests against an installed copy of spdlog
--- spdlog.orig/tests/CMakeLists.txt
+++ spdlog/tests/CMakeLists.txt
@@ -1,5 +1,12 @@
+cmake_minimum_required(VERSION 3.2)
+
 project(spdlog_utests CXX)
 
+if(NOT TARGET spdlog)
+    # Stand-alone build
+    find_package(spdlog REQUIRED)
+endif()
+
 include(../cmake/utils.cmake)
 
 find_package(PkgConfig)
--- spdlog.orig/example/CMakeLists.txt
+++ spdlog/example/CMakeLists.txt
@@ -4,6 +4,8 @@
 cmake_minimum_required(VERSION 3.1)
 project(spdlog_examples CXX)
 
+include(../cmake/utils.cmake)
+
 if(NOT TARGET spdlog)
     # Stand-alone build
     find_package(spdlog REQUIRED)
