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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

41 lines
1.7 KiB
CMake

# Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
#
# SPDX-License-Identifier: MIT
include_guard(GLOBAL)
#-----------------------------------------------------------------------------
# Option to use the include-what-you-use tool
#
# When this option is enabled, compilation will emit IWYU suggestions.
#-----------------------------------------------------------------------------
option(AIS_USE_IWYU "Run include-what-you-use when compiling" OFF)
if(AIS_USE_IWYU)
find_program(IWYU_EXE NAMES include-what-you-use REQUIRED)
# GoogleTest/GoogleMock expose their public API through umbrella headers
# (gtest/gtest.h, gmock/gmock.h) but define symbols in private sub-headers.
# Without a mapping, IWYU suggests including those private headers and
# confuses the quoted vs. angle-bracket spellings. This mapping file
# redirects all gtest/gmock private headers to the public umbrella headers.
# libstdc++/glibc declare some symbols in private bits/* headers that IWYU
# would otherwise suggest including directly (e.g. <bits/chrono.h> for
# std::chrono, <bits/statx-generic.h> for statx). These are not part of the
# bundled IWYU mappings, so redirect them to their public headers.
set(IWYU_MAPPINGS
"${CMAKE_CURRENT_LIST_DIR}/iwyu-gtest.imp"
"${CMAKE_CURRENT_LIST_DIR}/iwyu-libc.imp")
set(IWYU_COMMAND "${IWYU_EXE}")
foreach(mapping IN LISTS IWYU_MAPPINGS)
if(NOT EXISTS "${mapping}")
message(FATAL_ERROR "IWYU mapping file not found: ${mapping}")
endif()
list(APPEND IWYU_COMMAND "-Xiwyu" "--mapping_file=${mapping}")
endforeach()
set(CMAKE_C_INCLUDE_WHAT_YOU_USE ${IWYU_COMMAND})
set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE ${IWYU_COMMAND})
endif()