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1# if CMAKE_LIBTOOL is not set, try and find it with xcrun or find_program2if(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 libtool8 OUTPUT_VARIABLE CMAKE_LIBTOOL9 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()15endif()16 17get_property(languages GLOBAL PROPERTY ENABLED_LANGUAGES)18if(CMAKE_LIBTOOL)19 set(CMAKE_LIBTOOL ${CMAKE_LIBTOOL} CACHE PATH "libtool executable")20 message(STATUS "Found libtool - ${CMAKE_LIBTOOL}")21 22 execute_process(COMMAND ${CMAKE_LIBTOOL} -V23 OUTPUT_VARIABLE LIBTOOL_V_OUTPUT24 OUTPUT_STRIP_TRAILING_WHITESPACE)25 if("${LIBTOOL_V_OUTPUT}" MATCHES ".*cctools-([0-9.]+).*")26 string(REGEX REPLACE ".*cctools-([0-9.]+).*" "\\1" LIBTOOL_VERSION27 ${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_LIBRARY35 "\"${CMAKE_LIBTOOL}\" -static ${LIBTOOL_NO_WARNING_FLAG} -o <TARGET> <LINK_FLAGS> <OBJECTS>")36 endforeach()37 38 # By default, CMake invokes ranlib on a static library after installing it.39 # libtool will have produced the table of contents for us already, and ranlib40 # does not understanding universal binaries, so skip this step. It's important41 # to set it to empty instead of unsetting it to shadow the cache variable, and42 # we don't want to unset the cache variable to not affect anything outside43 # this scope.44 set(CMAKE_RANLIB "")45endif()46 47# If DYLD_LIBRARY_PATH is set we need to set it on archiver commands48if(DYLD_LIBRARY_PATH)49 set(dyld_envar "DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}")50 foreach(lang ${languages})51 foreach(cmd ${CMAKE_${lang}_CREATE_STATIC_LIBRARY})52 list(APPEND CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW53 "${dyld_envar} ${cmd}")54 endforeach()55 set(CMAKE_${lang}_CREATE_STATIC_LIBRARY56 ${CMAKE_${lang}_CREATE_STATIC_LIBRARY_NEW})57 endforeach()58endif()59