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cmake_minimum_required(VERSION 3.12)
function(run_glslangValidator exe exe_display)
execute_process(COMMAND ${exe} --help
OUTPUT_VARIABLE output
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE result
)
if(NOT result EQUAL 1)
message(SEND_ERROR "Result of ${exe_display} --help is ${result}, should be 1")
endif()
if(NOT output MATCHES "^Usage: glslangValidator")
message(SEND_ERROR "Output of ${exe_display} --help is \"${output}\", should begin with \"Usage: glslangValidator\"")
endif()
endfunction()
run_glslangValidator("${VULKAN_GLSLANG_VALIDATOR_EXECUTABLE}" "\${VULKAN_GLSLANG_VALIDATOR_EXECUTABLE}")
run_glslangValidator("${VULKAN_GLSLANG_VALIDATOR_EXECUTABLE_TARGET}" "Vulkan::glslangValidator")
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