cmake/modules/AddPartiallyLinkedObject.cmake

   1
   2 macro(add_partially_linked_object lib)
   3   if( MSVC )
   4     add_llvm_library( ${lib} ${ARGN})
   5   else( MSVC )
   6     set(pll ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/${lib}.o)
   7     set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
   8     set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib)
   9     add_library( ${lib} STATIC ${ARGN})
  10     add_custom_command(OUTPUT ${pll}
  11       MESSAGE "Building ${lib}.o..."
  12       DEPENDS ${lib}
  13       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/temp_lib
  14       COMMAND ar x ${CMAKE_STATIC_LIBRARY_PREFIX}${lib}${CMAKE_STATIC_LIBRARY_SUFFIX}
  15       COMMAND ld -r *${CMAKE_CXX_OUTPUT_EXTENSION} -o ${pll}
  16       COMMAND rm -f *${CMAKE_CXX_OUTPUT_EXTENSION}
  17       )
  18     add_custom_target(${lib}_pll ALL DEPENDS ${pll})
  19     set( llvm_libs ${llvm_libs} ${pll} PARENT_SCOPE)
  20   endif( MSVC )
  21 endmacro(add_partially_linked_object lib)