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Avoid MSVC warning due to -fno-lto

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This commit is contained in:
Oliver Hamlet
2025-11-07 17:35:41 +00:00
parent 86ff2a665b
commit 94f4dc476e
1 changed files with 12 additions and 7 deletions
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cpp/CMakeLists.txt
+12 -7
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@@ -35,19 +35,24 @@ else()
set(TARGET_PATH "${PROJECT_SOURCE_DIR}/../target")
endif()
set(CARGO_COMMAND cargo build
$<$<NOT:$<CONFIG:Debug>>:--release>
$<$<AND:$<CONFIG:Debug>,$<PLATFORM_ID:Windows>>:--config>
$<$<AND:$<CONFIG:Debug>,$<PLATFORM_ID:Windows>>:${PROJECT_SOURCE_DIR}/.cargo/msvc-debug-config.toml>
$<$<BOOL:${RUST_TARGET}>:--target>
$<$<BOOL:${RUST_TARGET}>:${RUST_TARGET}>)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(CARGO_COMMAND ${CMAKE_COMMAND} -E env --modify "CXXFLAGS=string_append: -fno-lto" -- ${CARGO_COMMAND})
endif()
add_custom_target(libloot-cpp-build
# Force LTO to be disabled when building the first layer of the C++ wrapper,
# as it may be enabled by default, and if so that leads to undefined symbols
# in the C++ wrapper's shared library. It's not enough to just pass -fno-lto
# when building libloot-cpp itself, it also needs to be passed when building
# the cxx crate, as otherwise there will be missing cxxbridge symbols.
COMMAND ${CMAKE_COMMAND} -E env --modify "CXXFLAGS=string_append: -fno-lto" --
cargo build
$<$<NOT:$<CONFIG:Debug>>:--release>
$<$<AND:$<CONFIG:Debug>,$<PLATFORM_ID:Windows>>:--config>
$<$<AND:$<CONFIG:Debug>,$<PLATFORM_ID:Windows>>:${PROJECT_SOURCE_DIR}/.cargo/msvc-debug-config.toml>
$<$<BOOL:${RUST_TARGET}>:--target>
$<$<BOOL:${RUST_TARGET}>:${RUST_TARGET}>
COMMAND ${CARGO_COMMAND}
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
BYPRODUCTS
"${TARGET_PATH}/$<IF:$<CONFIG:Debug>,debug,release>/${LIBLOOT_CPP_FILENAME}"