Use CMake's find_package to locate vulkan for samples and tests. (#308)

tests/CMakeLists.txt

@@ -14,6 +14,8 @@
 
 cmake_minimum_required(VERSION 3.2)
 
+find_package(Vulkan REQUIRED)
+
 project(Vulkan-Hpp_Tests)
 
 option (TESTS_BUILD_WITH_LOCAL_VULKAN_HPP OFF)
@@ -30,7 +32,7 @@ if (TESTS_BUILD_WITH_LOCAL_VULKAN_HPP)
   include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../Vulkan-Docs/include")
   include_directories("${CMAKE_CURRENT_SOURCE_DIR}/..")
 else()
-  include_directories("$ENV{VK_SDK_PATH}/include")
+  include_directories("${Vulkan_INCLUDE_DIRS}")
 endif()
 
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/../glm")

tests/DeviceFunctions/CMakeLists.txt

@@ -32,4 +32,4 @@ add_executable(DeviceFunctions
 )
 
 set_target_properties(DeviceFunctions PROPERTIES FOLDER "Tests")
-target_link_libraries(DeviceFunctions "$ENV{VULKAN_SDK}/Lib/vulkan-1.lib")
+target_link_libraries(DeviceFunctions "${Vulkan_LIBRARIES}")

tests/NoExceptions/CMakeLists.txt

@@ -32,4 +32,4 @@ add_executable(NoExceptions
 )
 
 set_target_properties(NoExceptions PROPERTIES FOLDER "Tests")
-target_link_libraries(NoExceptions "$ENV{VULKAN_SDK}/Lib/vulkan-1.lib")
+target_link_libraries(NoExceptions "${Vulkan_LIBRARIES}")

tests/StructureChain/CMakeLists.txt

@@ -32,4 +32,4 @@ add_executable(StructureChain
 )
 
 set_target_properties(StructureChain PROPERTIES FOLDER "Tests")
-target_link_libraries(StructureChain "$ENV{VULKAN_SDK}/Lib/vulkan-1.lib")
+target_link_libraries(StructureChain "${Vulkan_LIBRARIES}")