diff options
| -rw-r--r-- | cmake/MergeStaticLibs.cmake | 147 |
1 files changed, 46 insertions, 101 deletions
diff --git a/cmake/MergeStaticLibs.cmake b/cmake/MergeStaticLibs.cmake index 858a026a3..1f0cee11a 100644 --- a/cmake/MergeStaticLibs.cmake +++ b/cmake/MergeStaticLibs.cmake @@ -16,114 +16,59 @@ function(merge_static_libs outlib ) set(libs ${ARGV}) list(REMOVE_AT libs 0) -# Create a dummy file that the target will depend on - set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${outlib}_dummy.c) - file(WRITE ${dummyfile} "const char * dummy = \"${dummyfile}\";") - - add_library(${outlib} STATIC ${dummyfile}) + list(REMOVE_DUPLICATES libs) # just in case - if("${CMAKE_CFG_INTDIR}" STREQUAL ".") - set(multiconfig FALSE) - else() - set(multiconfig TRUE) - endif() - -# First get the file names of the libraries to be merged + # First get the file names of the libraries to be merged foreach(lib ${libs}) get_target_property(libtype ${lib} TYPE) if(NOT libtype STREQUAL "STATIC_LIBRARY") - message(FATAL_ERROR "Merge_static_libs can only process static libraries") + message(FATAL_ERROR "merge_static_libs can only process static libraries") endif() - if(multiconfig) - foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) - get_target_property("libfile_${CONFIG_TYPE}" ${lib} "LOCATION_${CONFIG_TYPE}") - list(APPEND libfiles_${CONFIG_TYPE} ${libfile_${CONFIG_TYPE}}) - endforeach() - else() - get_target_property(libfile ${lib} LOCATION) - list(APPEND libfiles "${libfile}") - endif(multiconfig) + set(libfiles "${libfiles} $<TARGET_FILE:${lib}>") endforeach() - message(STATUS "will be merging ${libfiles}") -# Just to be sure: cleanup from duplicates - if(multiconfig) - foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) - list(REMOVE_DUPLICATES libfiles_${CONFIG_TYPE}) - set(libfiles ${libfiles} ${libfiles_${CONFIG_TYPE}}) + + if(MSVC) # lib.exe does the merging of given a list + set_target_properties(${outlib} PROPERTIES STATIC_LIBRARY_FLAGS "${libfiles}") + + elseif(APPLE) # Use OSX's libtool to merge archives + add_custom_command(TARGET ${outlib} POST_BUILD + COMMAND rm "$<TARGET_FILE:${outlib}>" + COMMAND /usr/bin/libtool -static -o "$<TARGET_FILE:${outlib}>" ${libfiles}) + + else() # general UNIX: use "ar" to extract objects and re-add to a common lib + foreach(lib ${libs}) + set(objlistfile ${lib}.objlist) # list of objects in the input library + set(objdir ${lib}.objdir) + + add_custom_command(OUTPUT ${objdir} + COMMAND ${CMAKE_COMMAND} -E make_directory ${objdir}) + + add_custom_command(OUTPUT ${objlistfile} + COMMAND ${CMAKE_AR} -x "$<TARGET_FILE:${lib}>" + COMMAND ${CMAKE_AR} -t "$<TARGET_FILE:${lib}>" > ../${objlistfile} + DEPENDS ${lib} ${objdir} + WORKING_DIRECTORY ${objdir}) + + # Empty dummy source file that goes into merged library + set(mergebase ${lib}.mergebase.c) + add_custom_command(OUTPUT ${mergebase} + COMMAND ${CMAKE_COMMAND} -E touch ${mergebase} + DEPENDS ${objlistfile}) + + list(APPEND mergebases "${mergebase}") endforeach() - endif() - list(REMOVE_DUPLICATES libfiles) -# Now the easy part for MSVC and for MAC - if(MSVC) - # lib.exe does the merging of libraries just need to conver the list into string - foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) - set(flags "") - foreach(lib ${libfiles_${CONFIG_TYPE}}) - set(flags "${flags} ${lib}") + # We need a target for the output merged library + add_library(${outlib} STATIC ${mergebases}) + set(outlibfile "$<TARGET_FILE:${outlib}>") + + foreach(lib ${libs}) + add_custom_command(TARGET ${outlib} POST_BUILD + COMMAND ${CMAKE_AR} ru ${outlibfile} @"../${objlistfile}" + WORKING_DIRECTORY ${objdir}) endforeach() - string(TOUPPER "STATIC_LIBRARY_FLAGS_${CONFIG_TYPE}" PROPNAME) - set_target_properties(${outlib} PROPERTIES ${PROPNAME} "${flags}") - endforeach() - - elseif(APPLE) - # Use OSX's libtool to merge archives - if(multiconfig) - message(FATAL_ERROR "Multiple configurations are not supported") - endif() - get_target_property(outfile ${outlib} LOCATION) - add_custom_command(TARGET ${outlib} POST_BUILD - COMMAND rm ${outfile} - COMMAND /usr/bin/libtool -static -o ${outfile} - ${libfiles} - ) - else() - # general UNIX - need to "ar -x" and then "ar -ru" - if(multiconfig) - message(FATAL_ERROR "Multiple configurations are not supported") - endif() - get_target_property(outfile ${outlib} LOCATION) - message(STATUS "outfile location is ${outfile}") - foreach(lib ${libfiles}) -# objlistfile will contain the list of object files for the library - set(objlistfile ${lib}.objlist) - set(objdir ${lib}.objdir) - set(objlistcmake ${objlistfile}.cmake) -# we only need to extract files once - if(${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cmake.check_cache IS_NEWER_THAN ${objlistcmake}) -#--------------------------------- - FILE(WRITE ${objlistcmake} -"# Extract object files from the library -message(STATUS \"Extracting object files from ${lib}\") -EXECUTE_PROCESS(COMMAND ${CMAKE_AR} -x ${lib} - WORKING_DIRECTORY ${objdir}) -# save the list of object files -EXECUTE_PROCESS(COMMAND ls . - OUTPUT_FILE ${objlistfile} - WORKING_DIRECTORY ${objdir})") -#--------------------------------- - file(MAKE_DIRECTORY ${objdir}) - add_custom_command( - OUTPUT ${objlistfile} - COMMAND ${CMAKE_COMMAND} -P ${objlistcmake} - DEPENDS ${lib}) - endif() - list(APPEND extrafiles "${objlistfile}") - # relative path is needed by ar under MSYS - file(RELATIVE_PATH objlistfilerpath ${objdir} ${objlistfile}) - add_custom_command(TARGET ${outlib} POST_BUILD - COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_AR} ru ${outfile} @${objlistfilerpath}" - COMMAND ${CMAKE_AR} ru "${outfile}" @"${objlistfilerpath}" - WORKING_DIRECTORY ${objdir}) - endforeach() - add_custom_command(TARGET ${outlib} POST_BUILD - COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_RANLIB} ${outfile}" - COMMAND ${CMAKE_RANLIB} ${outfile}) - endif() - file(WRITE ${dummyfile}.base "const char* ${outlib}_sublibs=\"${libs}\";") - add_custom_command( - OUTPUT ${dummyfile} - COMMAND ${CMAKE_COMMAND} -E copy ${dummyfile}.base ${dummyfile} - DEPENDS ${libs} ${extrafiles}) - endfunction()
\ No newline at end of file + add_custom_command(TARGET ${outlib} POST_BUILD + COMMAND ${CMAKE_RANLIB} ${outlibfile}) + endif() +endfunction() |