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https://github.com/fish-shell/fish-shell
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b17124d8d2
This is more complicated than it needs to be thanks to the presence of CMake and the C++ ffi in the picture. rsconf can correctly detect the required libraries and instruct rustc to link against them, but since we generate a static rust library and have CMake link it against the C++ binaries, we are still at the mercy of CMake picking up the symbols we want. Unfortunately, we could detect the gettext symbols but discover at runtime that they weren't linked in because CMake was compiled with `-DWITH_GETTEXT=0` or similar (as the macOS CI runner does). This means we also need to pass state between CMake and our build script to communicate which CMake options were enabled.
85 lines
2.8 KiB
CMake
85 lines
2.8 KiB
CMake
if(EXISTS "${CMAKE_SOURCE_DIR}/corrosion-vendor/")
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add_subdirectory("${CMAKE_SOURCE_DIR}/corrosion-vendor/")
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else()
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include(FetchContent)
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# Don't let Corrosion's tests interfere with ours.
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set(CORROSION_TESTS OFF CACHE BOOL "" FORCE)
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FetchContent_Declare(
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Corrosion
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GIT_REPOSITORY https://github.com/mqudsi/corrosion
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GIT_TAG fish
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)
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FetchContent_MakeAvailable(Corrosion)
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add_custom_target(corrosion-vendor.tar.gz
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COMMAND git archive --format tar.gz --output "${CMAKE_BINARY_DIR}/corrosion-vendor.tar.gz"
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--prefix corrosion-vendor/ HEAD
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WORKING_DIRECTORY ${corrosion_SOURCE_DIR}
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)
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endif()
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set(fish_rust_target "fish-rust")
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set(fish_autocxx_gen_dir "${CMAKE_BINARY_DIR}/fish-autocxx-gen/")
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set(FISH_CRATE_FEATURES "fish-ffi-tests")
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if(NOT DEFINED CARGO_FLAGS)
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# Corrosion doesn't like an empty string as FLAGS. This is basically a no-op alternative.
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# See https://github.com/corrosion-rs/corrosion/issues/356
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set(CARGO_FLAGS "--config" "foo=0")
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endif()
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if(DEFINED ASAN)
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list(APPEND CARGO_FLAGS "-Z" "build-std")
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list(APPEND FISH_CRATE_FEATURES "asan")
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endif()
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corrosion_import_crate(
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MANIFEST_PATH "${CMAKE_SOURCE_DIR}/fish-rust/Cargo.toml"
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FEATURES "${FISH_CRATE_FEATURES}"
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FLAGS "${CARGO_FLAGS}"
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)
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# We need the build dir because cxx puts our headers in there.
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# Corrosion doesn't expose the build dir, so poke where we shouldn't.
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if (Rust_CARGO_TARGET)
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set(rust_target_dir "${CMAKE_BINARY_DIR}/cargo/build/${_CORROSION_RUST_CARGO_TARGET}")
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else()
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set(rust_target_dir "${CMAKE_BINARY_DIR}/cargo/build/${_CORROSION_RUST_CARGO_HOST_TARGET}")
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corrosion_set_hostbuild(${fish_rust_target})
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endif()
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# Temporary hack to propogate CMake flags/options to build.rs. We need to get CMake to evaluate the
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# truthiness of the strings if they are set.
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set(CMAKE_WITH_GETTEXT "1")
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if(DEFINED WITH_GETTEXT AND NOT "${WITH_GETTEXT}")
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set(CMAKE_WITH_GETTEXT "0")
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endif()
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# Tell Cargo where our build directory is so it can find config.h.
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corrosion_set_env_vars(${fish_rust_target}
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"FISH_BUILD_DIR=${CMAKE_BINARY_DIR}"
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"FISH_AUTOCXX_GEN_DIR=${fish_autocxx_gen_dir}"
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"FISH_RUST_TARGET_DIR=${rust_target_dir}"
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"PREFIX=${CMAKE_INSTALL_PREFIX}"
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# Temporary hack to propogate CMake flags/options to build.rs.
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"CMAKE_WITH_GETTEXT=${CMAKE_WITH_GETTEXT}"
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)
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target_include_directories(${fish_rust_target} INTERFACE
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"${rust_target_dir}/cxxbridge/${fish_rust_target}/src/"
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"${fish_autocxx_gen_dir}/include/"
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)
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# Tell fish what extra C++ files to compile.
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define_property(
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TARGET PROPERTY fish_extra_cpp_files
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BRIEF_DOCS "Extra C++ files to compile for fish."
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FULL_DOCS "Extra C++ files to compile for fish."
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)
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set_property(TARGET ${fish_rust_target} PROPERTY fish_extra_cpp_files
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"${fish_autocxx_gen_dir}/cxx/gen0.cxx"
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)
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