blob: b263e99f2e8c4d2666c24ea8d41160b3e9cc4b99 [file] [log] [blame]
# ~~~
# Copyright (c) 2018 Valve Corporation
# Copyright (c) 2018 LunarG, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ~~~
# Add your optional dependencies in this "external" directory.
# googletest is an optional external dependency for this repo.
if(BUILD_TESTS)
# Attempt to enable googletest if available.
# Suppress all warnings from external projects (i.e.: in this directory's scope).
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS "-w")
endif()
if(TARGET gtest_main)
# Already enabled as a target (perhaps by a project enclosing this one)
message(STATUS "Vulkan-ValidationLayers/external: " "googletest already configured - using it")
elseif(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/googletest")
# The googletest directory exists, so enable it as a target.
message(STATUS "Vulkan-ValidationLayers/external: " "googletest found - configuring it for tests")
set(BUILD_GTEST ON CACHE BOOL "Builds the googletest subproject")
set(BUILD_GMOCK OFF CACHE BOOL "Builds the googlemock subproject")
set(gtest_force_shared_crt ON CACHE BOOL "Link gtest runtimes dynamically")
set(BUILD_SHARED_LIBS ON CACHE BOOL "Build shared libraries")
# EXCLUDE_FROM_ALL keeps the install target from installing GTEST files.
add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/googletest" EXCLUDE_FROM_ALL)
else()
message(SEND_ERROR "Vulkan-ValidationLayers/external: " "Google Test was not found. "
"Provide Google Test in external/googletest or set BUILD_TESTS=OFF")
endif()
endif()