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CMake-Rust [Windows]: Fix issue detecting native static libs #992

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Aug 9, 2023
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CMake-Rust [Windows]: Fix issue detecting native static libs #992

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11 changes: 9 additions & 2 deletions cmake/FindRust.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -397,10 +397,17 @@ if(RUSTC_MINIMUM_REQUIRED AND rustc_VERSION VERSION_LESS RUSTC_MINIMUM_REQUIRED)
${rustc_VERSION} < ${RUSTC_MINIMUM_REQUIRED}")
endif()

if(WIN32)
file(TOUCH ${CMAKE_BINARY_DIR}/empty-file)
set(EMPTY_FILE "${CMAKE_BINARY_DIR}/empty-file")
else()
set(EMPTY_FILE "/dev/null")
endif()

# Determine the native libs required to link w/ rust static libs
# message(STATUS "Detecting native static libs for rust: ${rustc_EXECUTABLE} --crate-type staticlib --print=native-static-libs /dev/null")
# message(STATUS "Detecting native static libs for rust: ${rustc_EXECUTABLE} --crate-type staticlib --print=native-static-libs ${EMPTY_FILE}")
execute_process(
COMMAND ${CMAKE_COMMAND} -E env "CARGO_TARGET_DIR=${CMAKE_BINARY_DIR}" ${rustc_EXECUTABLE} --crate-type staticlib --print=native-static-libs /dev/null
COMMAND ${CMAKE_COMMAND} -E env "CARGO_TARGET_DIR=${CMAKE_BINARY_DIR}" ${rustc_EXECUTABLE} --crate-type staticlib --print=native-static-libs ${EMPTY_FILE}
OUTPUT_VARIABLE RUST_NATIVE_STATIC_LIBS_OUTPUT
ERROR_VARIABLE RUST_NATIVE_STATIC_LIBS_ERROR
RESULT_VARIABLE RUST_NATIVE_STATIC_LIBS_RESULT
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