# Copyright 2020 The Tint Authors.
#
# 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.

################################################################################
# Target flags
################################################################################
if(NOT TINT_BUILD_AS_OTHER_OS)
  if(APPLE)  # Must come before UNIX
    set(IS_MAC TRUE)
    set(IS_MAC TRUE)
  elseif(UNIX)
    set(IS_LINUX TRUE)
    set(IS_LINUX TRUE)
  elseif(WIN32)
    set(IS_WIN TRUE)
    set(IS_WIN TRUE)
  endif()
endif()

################################################################################
# Helper functions
################################################################################
function(tint_core_compile_options TARGET)
  target_include_directories(${TARGET} PUBLIC "${TINT_ROOT_SOURCE_DIR}")
  target_include_directories(${TARGET} PUBLIC "${TINT_ROOT_SOURCE_DIR}/include")
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_SPV_READER=$<BOOL:${TINT_BUILD_SPV_READER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_WGSL_READER=$<BOOL:${TINT_BUILD_WGSL_READER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_GLSL_WRITER=$<BOOL:${TINT_BUILD_GLSL_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_HLSL_WRITER=$<BOOL:${TINT_BUILD_HLSL_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_MSL_WRITER=$<BOOL:${TINT_BUILD_MSL_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_SPV_WRITER=$<BOOL:${TINT_BUILD_SPV_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_WGSL_WRITER=$<BOOL:${TINT_BUILD_WGSL_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_SYNTAX_TREE_WRITER=$<BOOL:${TINT_BUILD_SYNTAX_TREE_WRITER}>)
  target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_IR=$<BOOL:${TINT_BUILD_IR}>)

  common_compile_options(${TARGET})
endfunction()

function(tint_default_compile_options TARGET)
  tint_core_compile_options(${TARGET})

  set_target_properties(${TARGET} PROPERTIES LINKER_LANGUAGE CXX)

  set(COMMON_GNU_OPTIONS
    -Wall
    -Werror
    -Wextra
    -Wno-documentation-unknown-command
    -Wno-padded
    -Wno-switch-enum
    -Wno-unknown-pragmas
  )

  set(COMMON_CLANG_OPTIONS
    -Wno-c++98-compat
    -Wno-c++98-compat-pedantic
    -Wno-format-pedantic
    -Wno-poison-system-directories
    -Wno-return-std-move-in-c++11
    -Wno-unknown-warning-option
    -Wno-undefined-var-template
    -Wno-unsafe-buffer-usage
    -Wno-used-but-marked-unused
    -Weverything
  )

  if(COMPILER_IS_LIKE_GNU)
    target_compile_options(${TARGET} PRIVATE
      -pedantic-errors
      ${COMMON_GNU_OPTIONS}
    )

    if(COMPILER_IS_CLANG)
      target_compile_options(${TARGET} PRIVATE
        ${COMMON_CLANG_OPTIONS}
      )
    endif()
  endif(COMPILER_IS_LIKE_GNU)

  if(MSVC)
    # Specify /EHs for exception handling.
    target_compile_options(${TARGET} PRIVATE
      /bigobj
      /EHsc
      /W4
      /WX
      /wd4068 # unknown pragma
      /wd4127 # conditional expression is constant
      /wd4244 # 'conversion' conversion from 'type1' to 'type2', possible loss of data
      /wd4267 # 'var' : conversion from 'size_t' to 'type', possible loss of data
      /wd4324 # 'struct_name' : structure was padded due to __declspec(align())
      /wd4459 # declaration of 'identifier' hides global declaration
      /wd4458 # declaration of 'identifier' hides class member
      /wd4514 # 'function' : unreferenced inline function has been removed
      /wd4571 # catch(...) semantics changed since Visual C++ 7.1; structured exceptions (SEH) are no longer caught
      /wd4625 # 'derived class' : copy constructor was implicitly defined as deleted because a base class copy constructor is inaccessible or deleted
      /wd4626 # 'derived class' : assignment operator was implicitly defined as deleted because a base class assignment operator is inaccessible or deleted
      /wd4710 # 'function' : function not inlined
      /wd4774 # 'function' : format string 'string' requires an argument of type 'type', but variadic argument number has type 'type'
      /wd4820 # 'bytes' bytes padding added after construct 'member_name'
      /wd5026 # 'type': move constructor was implicitly defined as deleted
      /wd5027 # 'type': move assignment operator was implicitly defined as deleted
    )

    # When building with clang-cl on Windows, try to match our clang build
    # options as much as possible.
    if(COMPILER_IS_CLANG_CL)
      target_compile_options(${TARGET} PRIVATE
        ${COMMON_GNU_OPTIONS}
        ${COMMON_CLANG_OPTIONS}

        # Disable warnings that are usually disabled in downstream deps for
        # gcc/clang, but aren't for clang-cl.
        -Wno-global-constructors
        -Wno-zero-as-null-pointer-constant
        -Wno-shorten-64-to-32
        -Wno-shadow-field-in-constructor
        -Wno-reserved-id-macro
        -Wno-language-extension-token
      )
    endif()
  endif()

  if(TINT_RANDOMIZE_HASHES)
    if(NOT DEFINED TINT_HASH_SEED)
      string(RANDOM LENGTH 16 ALPHABET "0123456789abcdef" seed)
      set(TINT_HASH_SEED "0x${seed}" CACHE STRING "Tint hash seed value")
      message("Using TINT_HASH_SEED: ${TINT_HASH_SEED}")
    endif()

    target_compile_definitions(${TARGET} PUBLIC "-DTINT_HASH_SEED=${TINT_HASH_SEED}")
  endif()
endfunction()

function(tint_spvheaders_compile_options TARGET)
  target_link_libraries(${TARGET} PRIVATE SPIRV-Headers)
  target_include_directories(${TARGET} PRIVATE "${TINT_SPIRV_HEADERS_DIR}/include")
endfunction()

function(tint_spvtools_compile_options TARGET)
  target_link_libraries(${TARGET} PRIVATE SPIRV-Tools)
  target_include_directories(${TARGET} PRIVATE "${TINT_SPIRV_TOOLS_DIR}/include")
endfunction()

function(tint_test_compile_options TARGET)
  tint_default_compile_options(${TARGET})
  set_target_properties(${TARGET} PROPERTIES FOLDER "Tests")

  if(NOT MSVC)
    target_compile_options(${TARGET} PRIVATE
      -Wno-global-constructors
      -Wno-weak-vtables
    )
  endif()
endfunction()

function(tint_bench_compile_options TARGET)
  tint_core_compile_options(${TARGET})
  set_target_properties(${TARGET} PROPERTIES FOLDER "Benchmarks")
  target_link_libraries(${TARGET} PRIVATE benchmark::benchmark)
endfunction()

function(tint_test_cmd_compile_options TARGET)
  tint_test_compile_options(${TARGET})

  if(MSVC)
    # TODO(crbug.com/tint/1749): MSVC debug builds can suffer from stack
    # overflows when resolving deeply nested expression chains or statements.
    # Production builds neither use MSVC nor debug, so just bump the stack size
    # for this build combination.
    if(IS_DEBUG_BUILD)
      target_link_options(${TARGET} PRIVATE "/STACK:4194304") # 4MB, default is 1MB
    endif()
  endif()

  target_link_libraries(${TARGET} PRIVATE gmock)
endfunction()

function(tint_bench_cmd_compile_options TARGET)
  tint_bench_compile_options(${TARGET})
  target_link_libraries(${TARGET} PRIVATE benchmark::benchmark)
endfunction()

function(tint_fuzzer_compile_options TARGET)
  tint_default_compile_options(${TARGET})
  target_link_libraries(${TARGET} PRIVATE "tint_api${TINT_FUZZ_SUFFIX}")

  if(NOT "${TINT_LIB_FUZZING_ENGINE_LINK_OPTIONS}" STREQUAL "")
    # This is set when the fuzzers are being built by OSS${TINT_FUZZ_SUFFIX}. In this case the
    # variable provides the necessary linker flags, and OSS${TINT_FUZZ_SUFFIX} will take care
    # of passing suitable compiler flags.
    target_link_options(${TARGET} PUBLIC ${TINT_LIB_FUZZING_ENGINE_LINK_OPTIONS})
  else()
    # When the fuzzers are being built outside of OSS${TINT_FUZZ_SUFFIX}, specific libFuzzer
    # arguments to enable fuzzing are used.
    target_link_options(${TARGET} PUBLIC -fsanitize=fuzzer -fsanitize-coverage=trace-cmp)
  endif()
endfunction()

if(TINT_ENABLE_BREAK_IN_DEBUGGER)
  set_source_files_properties(utils/debug/debugger.cc
    PROPERTIES COMPILE_DEFINITIONS "TINT_ENABLE_BREAK_IN_DEBUGGER=1")
endif()

################################################################################
# Fuzzers
################################################################################
if(TINT_BUILD_FUZZERS)
  if(NOT COMPILER_IS_CLANG)
    message(FATAL_ERROR "TINT_BUILD_FUZZERS can only be enabled with the Clang toolchain")
  endif()
  add_subdirectory(fuzzers)
  set(TINT_FUZZ_SUFFIX "_fuzz")
endif()

################################################################################
# Functions used by BUILD.cmake files
# The CMake build handles the target kinds in different ways:
# 'cmd'       - Translates to a CMake executable target.
# 'lib'       - Translates to CMake static library.
#               If TINT_BUILD_FUZZERS is enabled, then a second static library with
#               the ${TINT_FUZZ_SUFFIX} suffix is also created. This is done because
#               the fuzzer build requires compilation with the '-fsanitize=fuzzer'
#               flag, which results in a separate set of compilation units.
# 'test'      - Translates to a CMake object library, configured for compiling and
#               linking against google-test.
# 'bench'     - Translates to a CMake object library, configured for compiling and
#               linking against google-benchmark.
# 'test_cmd'  - Translates to a CMake executable target linked against google-test.
# 'bench_cmd' - Translates to a CMake executable target linked against google-benchmark.
# See also: docs/tint/gen.md
################################################################################

# tint_check_target_is_enabled(IS_ENABLED KIND)
#
# Checks whether a target of the kind KIND is enabled.
# Assigns TRUE or FALSE to IS_ENABLED based on whether the target is enabled.
#
# Parameters:
#   IS_ENABLED - the output variable
#   KIND       - the target kind
function(tint_check_target_is_enabled IS_ENABLED KIND)
  set(IS_ENABLED FALSE PARENT_SCOPE) # Default to disabled
  if(${KIND} STREQUAL cmd)
    if(TINT_BUILD_CMD_TOOLS)
      set(IS_ENABLED TRUE PARENT_SCOPE)
    endif()
  elseif(${KIND} STREQUAL test_cmd)
    if(TINT_BUILD_TESTS)
      set(IS_ENABLED TRUE PARENT_SCOPE)
    endif()
  elseif(${KIND} STREQUAL bench_cmd)
    if(TINT_BUILD_BENCHMARKS)
      set(IS_ENABLED TRUE PARENT_SCOPE)
    endif()
  elseif(${KIND} STREQUAL test)
    if(TINT_BUILD_TESTS)
      set(IS_ENABLED TRUE PARENT_SCOPE)
    endif()
  elseif(${KIND} STREQUAL bench)
    if(TINT_BUILD_BENCHMARKS)
      set(IS_ENABLED TRUE PARENT_SCOPE)
    endif()
  elseif(${KIND} STREQUAL lib)
    set(IS_ENABLED TRUE PARENT_SCOPE)
  else()
    message(FATAL_ERROR "unhandled target kind ${KIND}")
  endif()
endfunction()

# tint_add_target(TARGET KIND [SOURCES...])
#
# Registers a Tint target with the provided sources.
# Additional sources can be appended with subsequent calls to tint_target_add_sources()
#
# Parameters:
#   TARGET   - The target name
#   KIND     - The target kind
#   SOURCES  - a list of source files, relative to this directory
function(tint_add_target TARGET KIND)
  set(SOURCES ${ARGN})

  tint_check_target_is_enabled(IS_ENABLED ${KIND})
  if(NOT IS_ENABLED)
    return() # Target is disabled via build flags
  endif()

  if(${KIND} STREQUAL lib)
    add_library(${TARGET} STATIC EXCLUDE_FROM_ALL)
    tint_default_compile_options(${TARGET})

    if(TINT_BUILD_FUZZERS)
      # Create a second library target for use of the fuzzers, with the
      # ${TINT_FUZZ_SUFFIX} suffix
      set(FUZZ_TARGET "${TARGET}${TINT_FUZZ_SUFFIX}")
      add_library(${FUZZ_TARGET} STATIC EXCLUDE_FROM_ALL)
      target_sources(${FUZZ_TARGET} PRIVATE ${SOURCES})
      tint_default_compile_options(${FUZZ_TARGET})
    endif()
  elseif(${KIND} STREQUAL cmd)
    add_executable(${TARGET})
    tint_default_compile_options(${TARGET})
  elseif(${KIND} STREQUAL test_cmd)
    add_executable(${TARGET})
    tint_test_cmd_compile_options(${TARGET})
  elseif(${KIND} STREQUAL bench_cmd)
    add_executable(${TARGET})
    tint_bench_cmd_compile_options(${TARGET})
  elseif(${KIND} STREQUAL test)
    add_library(${TARGET} OBJECT EXCLUDE_FROM_ALL)
    tint_test_compile_options(${TARGET})
  elseif(${KIND} STREQUAL bench)
    add_library(${TARGET} OBJECT EXCLUDE_FROM_ALL)
    tint_bench_compile_options(${TARGET})
  else()
    message(FATAL_ERROR "unhandled target kind ${KIND}")
  endif()

  # Add the sources to the target
  target_sources(${TARGET} PRIVATE ${SOURCES})
endfunction()

# tint_target_add_sources(TARGET [SOURCES...])
#
# Adds source files to a Tint target
#
# Parameters:
#   TARGET   - The target name
#   KIND     - The target kind
#   SOURCES  - a list of source files, relative to this directory
function(tint_target_add_sources TARGET KIND)
  set(SOURCES ${ARGN})

  tint_check_target_is_enabled(IS_ENABLED ${KIND})
  if(NOT IS_ENABLED)
    return() # Target is disabled via build flags
  endif()

  target_sources(${TARGET} PRIVATE ${SOURCES})

  # If there's a corresponding fuzz target for this target, also append the files to that target
  set(FUZZ_TARGET "${TARGET}${TINT_FUZZ_SUFFIX}")
  if(TARGET "${FUZZ_TARGET}")
    target_sources("${FUZZ_TARGET}" PRIVATE ${SOURCES})
  endif()
endfunction()

# tint_target_add_dependencies(TARGET DEPENDENCIES...)
#
# Adds dependencies to a Tint target.
#
# Parameters:
#   TARGET       - The target name
#   KIND         - The target kind
#   DEPENDENCIES - a list of target names
function(tint_target_add_dependencies TARGET KIND)
  set(DEPENDENCIES ${ARGN})

  tint_check_target_is_enabled(IS_ENABLED ${KIND})
  if(NOT IS_ENABLED)
    return() # Target is disabled via build flags
  endif()

  # Register the dependencies
  target_link_libraries(${TARGET} PRIVATE ${DEPENDENCIES})

  # If there's a corresponding fuzz target for this target, add the corresponding fuzz dependencies
  # to the fuzz target.
  set(FUZZ_TARGET "${TARGET}${TINT_FUZZ_SUFFIX}")
  if(TARGET "${FUZZ_TARGET}")
    set(FUZZ_DEPENDENCIES "")

    foreach(TARGET ${DEPENDENCIES})
      list(APPEND FUZZ_DEPENDENCIES "${TARGET}${TINT_FUZZ_SUFFIX}")
    endforeach()

    target_link_libraries("${FUZZ_TARGET}" PRIVATE ${FUZZ_DEPENDENCIES})
  endif()
endfunction()

# tint_target_add_external_dependencies(TARGET KIND DEPENDENCIES...)
#
# Adds external dependencies to a Tint target.
#
# Parameters:
#   TARGET       - The target name
#   KIND         - The target kind
#   DEPENDENCIES - a list of external target names
#
# See src/tint/externals.json for the list of external dependencies.
function(tint_target_add_external_dependencies UNSUFFIXED_TARGET KIND)
  set(DEPENDENCIES ${ARGN})

  tint_check_target_is_enabled(IS_ENABLED ${KIND})
  if(NOT IS_ENABLED)
    return() # Target is disabled via build flags
  endif()

  # Build a list of targets that we're going to operate on
  set(TARGETS ${UNSUFFIXED_TARGET})
  if(TARGET "${UNSUFFIXED_TARGET}${TINT_FUZZ_SUFFIX}")
    list(APPEND TARGETS "${UNSUFFIXED_TARGET}${TINT_FUZZ_SUFFIX}")
  endif()

  foreach(TARGET ${TARGETS})
    foreach(DEPENDENCY ${DEPENDENCIES})  # Each external dependency requires special handling...
      if(${DEPENDENCY} STREQUAL "abseil")
        target_link_libraries(${TARGET} PRIVATE
          absl_strings
        )
      elseif(${DEPENDENCY} STREQUAL "glslang")
        target_link_libraries(${TARGET} PRIVATE glslang)
        if(NOT MSVC)
          target_compile_options(${TARGET} PRIVATE
            -Wno-reserved-id-macro
            -Wno-shadow-field-in-constructor
            -Wno-shadow
            -Wno-weak-vtables
          )
        endif()
      elseif(${DEPENDENCY} STREQUAL "glslang-res-limits")
        target_link_libraries(${TARGET} PRIVATE
          glslang-default-resource-limits
        )
      elseif(${DEPENDENCY} STREQUAL "gtest")
        target_include_directories(${TARGET} PRIVATE ${gmock_SOURCE_DIR}/include)
        target_link_libraries(${TARGET} PRIVATE gmock)
      elseif(${DEPENDENCY} STREQUAL "metal")
        find_library(CoreGraphicsFramework CoreGraphics REQUIRED)
        find_library(FoundationFramework Foundation REQUIRED)
        find_library(MetalFramework Metal REQUIRED)
        target_link_libraries(${TARGET} PRIVATE 
          ${CoreGraphicsFramework}
          ${FoundationFramework}
          ${MetalFramework}
        )
      elseif(${DEPENDENCY} STREQUAL "spirv-headers")
        tint_spvheaders_compile_options(${TARGET})
      elseif(${DEPENDENCY} STREQUAL "spirv-tools")
        tint_spvtools_compile_options(${TARGET})
      elseif(${DEPENDENCY} STREQUAL "spirv-opt-internal")
        target_link_libraries(${TARGET} PRIVATE
          SPIRV-Tools-opt
        )
        target_include_directories(${TARGET} PRIVATE
          "${TINT_SPIRV_TOOLS_DIR}"
          "${TINT_SPIRV_TOOLS_DIR}/include"
          "${TINT_SPIRV_TOOLS_DIR}/source"
          "${spirv-tools_BINARY_DIR}"
        )
      elseif(${DEPENDENCY} STREQUAL "thread")
        find_package(Threads REQUIRED)
        target_link_libraries(${TARGET} PRIVATE Threads::Threads)
      elseif(${DEPENDENCY} STREQUAL "winsock")
        target_link_libraries(${TARGET} PRIVATE ws2_32)
      else()
        message(FATAL_ERROR "unhandled external dependency ${DEPENDENCY}")
      endif()
    endforeach()
  endforeach()
endfunction()

# tint_target_set_output_name(TARGET KIND OUTPUT_NAME)
#
# Overrides the output name for the given target
#
# Parameters:
#   TARGET      - The target name
#   KIND        - The target kind
#   OUTPUT_NAME - the new name for the target output
function(tint_target_set_output_name TARGET KIND OUTPUT_NAME)
  tint_check_target_is_enabled(IS_ENABLED ${KIND})
  if(NOT IS_ENABLED)
    return() # Target is disabled via build flags
  endif()

  set_target_properties(${TARGET} PROPERTIES OUTPUT_NAME ${OUTPUT_NAME})

  # Create an alias target with the name OUTPUT_NAME to TARGET
  if(${KIND} STREQUAL lib)
    add_library(${OUTPUT_NAME} ALIAS ${TARGET})
  elseif(${KIND} STREQUAL test)
    add_library(${OUTPUT_NAME} ALIAS ${TARGET})
  elseif(${KIND} STREQUAL cmd)
    add_executable(${OUTPUT_NAME} ALIAS ${TARGET})
  elseif(${KIND} STREQUAL test_cmd)
    add_executable(${OUTPUT_NAME} ALIAS ${TARGET})
  elseif(${KIND} STREQUAL bench_cmd)
    add_executable(${OUTPUT_NAME} ALIAS ${TARGET})
  else()
    message(FATAL_ERROR "unhandled target kind ${KIND}")
  endif()
endfunction()

################################################################################
# Include the generated build files
################################################################################
include("BUILD.cmake")

################################################################################
# Additional fuzzer tests
################################################################################
if(TINT_BUILD_TESTS)
  if(${TINT_BUILD_FUZZERS})
    target_sources(tint_cmd_test_test_cmd PRIVATE
      fuzzers/mersenne_twister_engine.cc
      fuzzers/mersenne_twister_engine.h
      fuzzers/random_generator.cc
      fuzzers/random_generator.h
      fuzzers/random_generator_engine.cc
      fuzzers/random_generator_engine.h
      fuzzers/random_generator_test.cc
    )
  endif()

  add_test(NAME tint_unittests COMMAND tint_cmd_test_test_cmd)
endif(TINT_BUILD_TESTS)

################################################################################
# Benchmarks
################################################################################
if(TINT_BUILD_BENCHMARKS AND TINT_EXTERNAL_BENCHMARK_CORPUS_DIR)
  # Glob all the files at TINT_EXTERNAL_BENCHMARK_CORPUS_DIR, and create a header
  # that lists these with the macros:
  # TINT_BENCHMARK_EXTERNAL_WGSL_PROGRAMS()
  # TINT_BENCHMARK_EXTERNAL_SPV_PROGRAMS()
  set(TINT_BENCHMARK_GEN_DIR "${DAWN_BUILD_GEN_DIR}/src/tint/benchmark/")
  set(TINT_BENCHMARK_EXTERNAL_SHADERS_HEADER "${TINT_BENCHMARK_GEN_DIR}/external_wgsl_programs.h")
  message("Globbing ${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}...")

  file(GLOB_RECURSE
    TINT_EXTERNAL_WGSL_BENCHMARK_FILES
    RELATIVE "${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}"
    "${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}/**.wgsl"
  )
  list(TRANSFORM TINT_EXTERNAL_WGSL_BENCHMARK_FILES REPLACE
    "(.+)"
    "    BENCHMARK_CAPTURE\(FUNC, \"\\1\", \"${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}/\\1\")"
  )
  list(JOIN TINT_EXTERNAL_WGSL_BENCHMARK_FILES "; \\\n" TINT_EXTERNAL_WGSL_BENCHMARK_FILES)

  file(GLOB_RECURSE
    TINT_EXTERNAL_SPV_BENCHMARK_FILES
    RELATIVE "${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}"
    "${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}/**.spv")

  list(TRANSFORM TINT_EXTERNAL_SPV_BENCHMARK_FILES REPLACE
    "(.+)"
    "    BENCHMARK_CAPTURE\(FUNC, \"\\1\", \"${TINT_EXTERNAL_BENCHMARK_CORPUS_DIR}/\\1\")"
  )
  list(JOIN TINT_EXTERNAL_SPV_BENCHMARK_FILES "; \\\n" TINT_EXTERNAL_SPV_BENCHMARK_FILES)

  file(CONFIGURE
    OUTPUT "${TINT_BENCHMARK_EXTERNAL_SHADERS_HEADER}"
    CONTENT "
#define TINT_BENCHMARK_EXTERNAL_WGSL_PROGRAMS(FUNC) \\
${TINT_EXTERNAL_WGSL_BENCHMARK_FILES};

#define TINT_BENCHMARK_EXTERNAL_SPV_PROGRAMS(FUNC) \\
${TINT_EXTERNAL_SPV_BENCHMARK_FILES};"
  )

  # Define TINT_BENCHMARK_EXTERNAL_SHADERS_HEADER to the generated header path
  target_compile_definitions(tint_cmd_bench_bench_cmd PRIVATE
    "TINT_BENCHMARK_EXTERNAL_SHADERS_HEADER=\"${TINT_BENCHMARK_EXTERNAL_SHADERS_HEADER}\""
  )
endif(TINT_BUILD_BENCHMARKS AND TINT_EXTERNAL_BENCHMARK_CORPUS_DIR)

################################################################################
# Target aliases
################################################################################
add_library(libtint ALIAS tint_api)