Added usage of PROJECT_IS_TOP_LEVEL around find_package in CMakeLists.txt
See
@@ -2,7 +2,9 @@ cmake_minimum_required(VERSION 3.9)
project(VulkanMemoryAllocator)
+if(PROJECT_IS_TOP_LEVEL)
find_package(Vulkan REQUIRED)
+endif()
include_directories(${Vulkan_INCLUDE_DIR})
# VulkanMemoryAllocator contains an sample application which is not built by default
@@ -30,7 +32,9 @@ if(VMA_BUILD_SAMPLE)
set(VMA_BUILD_SAMPLE_SHADERS ON)
endif(VMA_BUILD_SAMPLE)
+if(PROJECT_IS_TOP_LEVEL)
find_package(Doxygen)
+endif()
option(BUILD_DOCUMENTATION "Create and install the HTML based API documentation (requires Doxygen)" OFF)
if(BUILD_DOCUMENTATION)
