fix stuff
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@ -73,26 +73,50 @@ function(add_rust_object TOP_PROJECT RUST_TOP_SOURCE_FILE)
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cmake_path(GET HEADER_PATH STEM HEADER_NAME)
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if(NOT(HEADER_PATH STREQUAL ""))
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set(_BINDGEN_CFLAGS
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$<TARGET_PROPERTY:${TOP_PROJECT},COMPILE_OPTIONS>
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$<LIST:TRANSFORM,$<LIST:SORT,$<TARGET_PROPERTY:${TOP_PROJECT},COMPILE_DEFINITIONS>>,PREPEND,-D>
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$<LIST:TRANSFORM,$<TARGET_PROPERTY:${TOP_PROJECT},INCLUDE_DIRECTORIES>,PREPEND,-isystem>
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# $<LIST:TRANSFORM,$<LIST:SORT,$<TARGET_PROPERTY:${TOP_PROJECT},INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>>,PREPEND,-isystem>
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)
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# preprocess C headers with top_project C compiler -- might use different system dirs & compatibility stuff & whatnot
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h
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# yeah, need two commands........
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COMMAND ${CMAKE_C_COMPILER} ${_BINDGEN_CFLAGS} -E -MM -MF ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h.d ${HEADER_PATH}
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COMMAND ${CMAKE_C_COMPILER} ${_BINDGEN_CFLAGS} -E -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h ${HEADER_PATH}
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DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h.d
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MAIN_DEPENDENCY ${HEADER_PATH}
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VERBATIM
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COMMAND_EXPAND_LISTS
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)
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add_custom_target(c2rs_${TARGET_NAME}_src_tgt_hdr_pre DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h)
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# generate rs from c headers
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if(DEFINED RUST_TARGET)
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# necessary for bindgen itself, but not for preprocessor stuff above
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set(_BINDGEN_CFLAGS -target ${RUST_TARGET}) #${_BINDGEN_CFLAGS}
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endif()
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set(_BINDGEN_COMMAND_START ${BINDGEN_BIN} ${BINDGEN_CFLAGS}
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--depfile ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.d
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${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h
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)
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# need to prepend the generated rust source with some directives to not make the compiler blow up
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set(_PYTHON_SCRIPT "import sys\;f=open\(sys.argv[-1]+'.tmp','r'\).read\(\)\;open\(sys.argv[-1],'w'\).write\('#\![allow(non_camel_case_types,non_snake_case,nonstandard_style)]'+chr(10)+f\)")
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if("--use-core" IN_LIST BINDGEN_CFLAGS)
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set(_PYTHON_SCRIPT "import sys\;f=open\(sys.argv[-1]+'.tmp','r'\).read\(\)\;open\(sys.argv[-1],'w'\).write\('#\![no_std]'+chr(10)+'#\![allow(non_camel_case_types,non_snake_case,nonstandard_style)]'+chr(10)+f\)")
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endif()
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs
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COMMAND ${BINDGEN_BIN} ${BINDGEN_CFLAGS} --depfile ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.d -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.tmp ${HEADER_PATH}
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COMMAND python -c "import sys;f=open\(sys.argv[1]+'.tmp','r'\).read\(\);open\(sys.argv[1],'w'\).write\('#![no_std]'+chr(10)+f\)" ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs
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COMMAND ${_BINDGEN_COMMAND_START} -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.tmp -- ${_BINDGEN_CFLAGS}
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COMMAND python -c ${_PYTHON_SCRIPT} ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs
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BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.tmp
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DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.d
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MAIN_DEPENDENCY ${RUST_TOP_SOURCE_FILE}
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MAIN_DEPENDENCY ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen_pre.h
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VERBATIM
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# COMMAND_EXPAND_LISTS
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)
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else()
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs
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COMMAND ${BINDGEN_BIN} ${BINDGEN_CFLAGS} --depfile ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.d -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs ${HEADER_PATH}
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DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs.d
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MAIN_DEPENDENCY ${RUST_TOP_SOURCE_FILE}
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VERBATIM
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)
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endif()
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add_custom_target(c2rs_${TARGET_NAME}_src_tgt DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${HEADER_NAME}_bindgen.rs)
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# build crate from it so we can actually import it
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@ -111,23 +135,6 @@ function(add_rust_object TOP_PROJECT RUST_TOP_SOURCE_FILE)
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endif()
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endif()
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### rust-to-C bindings (generate C headers from .rs, cbindgen)
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# cbindgen call
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h
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COMMAND ${CBINDGEN_BIN} ${CBINDGEN_CFLAGS} -d --depfile ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h.d -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h ${RUST_TOP_SOURCE_FILE}
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DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h.d
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MAIN_DEPENDENCY ${RUST_TOP_SOURCE_FILE}
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VERBATIM
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)
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# make a virtual library for the header files
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add_library(rs2c_${TARGET_NAME} INTERFACE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h)
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# add dependency to ensure build order and stuff
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target_link_libraries(${TOP_PROJECT} rs2c_${TARGET_NAME})
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# and add include directories
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target_include_directories(${TOP_PROJECT} PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/)
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### rust compilation
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# the compile command
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add_custom_command(
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@ -144,5 +151,22 @@ function(add_rust_object TOP_PROJECT RUST_TOP_SOURCE_FILE)
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add_library(${TARGET_NAME} OBJECT ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}.obj)
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# add generated object file from the library to the code to compile
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target_sources(${TOP_PROJECT} PUBLIC $<TARGET_PROPERTY:${TARGET_NAME},SOURCES>)
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### rust-to-C bindings (generate C headers from .rs, cbindgen)
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# cbindgen call
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h
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COMMAND ${CBINDGEN_BIN} ${CBINDGEN_CFLAGS} -d --depfile ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h.d -o ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h ${RUST_TOP_SOURCE_FILE}
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DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h.d
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MAIN_DEPENDENCY ${RUST_TOP_SOURCE_FILE}
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VERBATIM
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)
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# make a virtual library for the header files
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add_library(rs2c_${TARGET_NAME} INTERFACE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/${TARGET_NAME}.h ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME}.obj)
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# add dependency to ensure build order and stuff
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target_link_libraries(${TOP_PROJECT} rs2c_${TARGET_NAME})
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# and add include directories
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target_include_directories(${TOP_PROJECT} PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/generated/rust_${TARGET_NAME}/)
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endfunction()
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