src/cmake/DawnCompilerPlatformFlags.cmake

# Copyright 2024 The Dawn & Tint Authors
#
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
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#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# CMake < 3.15 sets /W3 in CMAKE_CXX_FLAGS. Remove it if it's there.
# See https://gitlab.kitware.com/cmake/cmake/-/issues/18317
if (CMAKE_VERSION VERSION_LESS 3.15.0)
  if (MSVC)
    if (CMAKE_CXX_FLAGS MATCHES "/W3")
      string(REPLACE "/W3" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
    endif ()
  endif ()
endif ()

if (TINT_CHECK_CHROMIUM_STYLE)
  string(APPEND CMAKE_CXX_FLAGS
    -Xclang=-add-plugin -Xclang=find-bad-constructs
  )
endif ()

if ((CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
    AND (CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC"))
  set(COMPILER_IS_CLANG_CL TRUE)
endif ()

if ((CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang") OR
    ((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND
     (NOT COMPILER_IS_CLANG_CL)))
  set(COMPILER_IS_CLANG TRUE)
endif ()

if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  set(COMPILER_IS_GNU TRUE)
endif ()

if ((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR COMPILER_IS_CLANG)
  set(COMPILER_IS_LIKE_GNU TRUE)
endif ()

# Enable msbuild multiprocessor builds
if (MSVC AND NOT COMPILER_IS_CLANG_CL)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
endif ()

if (TARGET_MACOS)
    set(CMAKE_OSX_DEPLOYMENT_TARGET "12.0" CACHE STRING "Minimum macOS version")
endif ()