llvm/cmake/modules/UseLibtool.cmake

   1 # if CMAKE_LIBTOOL is not set, try and find it with xcrun or find_program
   2 if(NOT CMAKE_LIBTOOL)
   3   if(NOT CMAKE_XCRUN)
   4     find_program(CMAKE_XCRUN NAMES xcrun)
   5   endif()
   6   if(CMAKE_XCRUN)
   7     execute_process(COMMAND ${CMAKE_XCRUN} -find libtool
   8       OUTPUT_VARIABLE CMAKE_LIBTOOL
   9       OUTPUT_STRIP_TRAILING_WHITESPACE)
  10   endif()
  11
  12   if(NOT CMAKE_LIBTOOL OR NOT EXISTS CMAKE_LIBTOOL)
  13     find_program(CMAKE_LIBTOOL NAMES libtool)
  14   endif()
  15 endif()
  16
  17 get_property(languages GLOBAL PROPERTY ENABLED_LANGUAGES)
  18 if(CMAKE_LIBTOOL)
  19   set(CMAKE_LIBTOOL ${CMAKE_LIBTOOL} CACHE PATH "libtool executable")
  20   message(STATUS "Found libtool - ${CMAKE_LIBTOOL}")
  21
  22   execute_process(COMMAND ${CMAKE_LIBTOOL} -V
  23     OUTPUT_VARIABLE LIBTOOL_V_OUTPUT
  24     OUTPUT_STRIP_TRAILING_WHITESPACE)
  25   if("${LIBTOOL_V_OUTPUT}" MATCHES ".*cctools-([0-9.]+).*")
  26     string(REGEX REPLACE ".*cctools-([0-9.]+).*" "\\1" LIBTOOL_VERSION
  27       ${LIBTOOL_V_OUTPUT})
  28     if(NOT LIBTOOL_VERSION VERSION_LESS "862")
  29       set(LIBTOOL_NO_WARNING_FLAG "-no_warning_for_no_symbols")
  30     endif()
  31   endif()
  32
  33   foreach(lang ${languages})
  34     set(CMAKE_${lang}_CREATE_STATIC_LIBRARY
  35       "\"${CMAKE_LIBTOOL}\" -static ${LIBTOOL_NO_WARNING_FLAG} -o <TARGET> <LINK_FLAGS> <OBJECTS>")
  36   endforeach()
  37 endif()
  38
  39 # If DYLD_LIBRARY_PATH is set we need to set it on archiver commands
  40 if(DYLD_LIBRARY_PATH)
  41   set(dyld_envar "DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}")
  42   foreach(lang ${languages})
  43     foreach(cmd ${CMAKE_${lang}_CREATE_STATIC_LIBRARY})
  44       list(APPEND CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW
  45            "${dyld_envar} ${cmd}")
  46     endforeach()
  47     set(CMAKE_${lang}_CREATE_STATIC_LIBRARY
  48       ${CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW})
  49   endforeach()
  50 endif()