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build: Avoid AppleClang using the wrong headers #928

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Merged
charles-lunarg merged 1 commit into from
Aug 7, 2026
Merged

build: Avoid AppleClang using the wrong headers #928

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10 changes: 9 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,9 @@
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Authors:
# Authors:
# - Christophe Riccio <christophe@lunarg.com>
# - Charles Giessen <charles@lunarg.com>
# ~~~

cmake_minimum_required(VERSION 3.22.1)
Expand Down Expand Up @@ -80,6 +81,13 @@ find_package(VulkanUtilityLibraries REQUIRED CONFIG QUIET)
find_package(valijson REQUIRED CONFIG)
find_package(jsoncpp REQUIRED CONFIG)

# Workaround AppleClang using the wrong headers when there are headers in /usr/local/include
if (CMAKE_CXX_COMPILER_ID STREQUAL AppleClang AND TARGET Vulkan::Headers AND TARGET Vulkan::LayerSettings AND CMAKE_VERSION VERSION_GREATER_EQUAL 3.25)
set_target_properties(Vulkan::Headers PROPERTIES SYSTEM OFF)
set_target_properties(Vulkan::LayerSettings PROPERTIES SYSTEM OFF)
set_target_properties(Vulkan::UtilityHeaders PROPERTIES SYSTEM OFF)
endif()

option(BUILD_TESTS "Build the tests")
if (BUILD_TESTS)
enable_testing()
Expand Down