blob: c27e50128586dbe7e9d3ff480593ed8626c58a0a [file] [log] [blame]
# Get the linker version on Darwin
function(get_darwin_linker_version variable)
set(LINK_VERSION)
set(LD_V_OUTPUT)
execute_process(
COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE LD_V_OUTPUT
)
if (HAD_ERROR)
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
endif()
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" LINK_VERSION ${LD_V_OUTPUT})
endif()
set(${variable} ${LINK_VERSION} PARENT_SCOPE)
endfunction()