From 0d21df3b81c0fd4f41866ab41497a02101bc0508 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Tue, 21 Dec 2021 06:17:10 +0000
Subject: [PATCH] CMake: Fix googletest from source

---
 3rdParty/googletest/CMakeLists.txt | 2 ++
 CMake/Dependencies.cmake           | 3 +++
 test/CMakeLists.txt                | 6 ++----
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/3rdParty/googletest/CMakeLists.txt b/3rdParty/googletest/CMakeLists.txt
index 1716e0cea..e8fa5d33b 100644
--- a/3rdParty/googletest/CMakeLists.txt
+++ b/3rdParty/googletest/CMakeLists.txt
@@ -12,3 +12,5 @@ set(INSTALL_GTEST OFF)
 set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 
 FetchContent_MakeAvailable(googletest)
+
+add_library(GTest::gtest ALIAS gmock)
diff --git a/CMake/Dependencies.cmake b/CMake/Dependencies.cmake
index 394ee6865..f75741aec 100644
--- a/CMake/Dependencies.cmake
+++ b/CMake/Dependencies.cmake
@@ -153,6 +153,9 @@ if(BUILD_TESTING)
   dependency_options("googletest" DEVILUTIONX_SYSTEM_GOOGLETEST ON DEVILUTIONX_STATIC_GOOGLETEST)
   if(DEVILUTIONX_SYSTEM_GOOGLETEST)
     find_package(GTest REQUIRED)
+    if(NOT TARGET GTest::gtest)
+      add_library(GTest::gtest ALIAS GTest::GTest)
+    endif()
   else()
     add_subdirectory(3rdParty/googletest)
   endif()
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 2a50ec461..e0bf0dd54 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -7,8 +7,7 @@ target_include_directories(libdevilutionx_so INTERFACE "${DevilutionX_SOURCE_DIR
 set_target_properties(libdevilutionx_so PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
 
 add_library(test_main STATIC main.cpp)
-target_link_libraries(test_main PRIVATE libdevilutionx_so ${GTEST_LIBRARIES})
-target_include_directories(test_main PRIVATE ${GTEST_INCLUDE_DIRS})
+target_link_libraries(test_main PUBLIC libdevilutionx_so GTest::gtest)
 
 set(tests
   animationinfo_test
@@ -38,8 +37,7 @@ set(tests
 foreach(test_target ${tests})
   add_executable(${test_target} "${test_target}.cpp")
   gtest_discover_tests(${test_target})
-  target_link_libraries(${test_target} PRIVATE libdevilutionx_so ${GTEST_LIBRARIES} test_main)
-  target_include_directories(${test_target} PRIVATE ${GTEST_INCLUDE_DIRS})
+  target_link_libraries(${test_target} PRIVATE test_main)
   set_target_properties(${test_target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${DevilutionX_BINARY_DIR})
 endforeach()