monero/cmake/MergeStaticLibs.cmake
redfish a7498adc03 cmake: comply with the new policy CMP0026
Access to LOCATION property at config time was disallowed by this
policy. This patch updates the offending code to comply with the policy
and thereby gets rid of the warning printed by cmake.

The fix is to use generator expressions instead of that property.

NOTE: Had to remove support for multiconfig (only affects MSVC which is
not supported anyway; and mutliconf is an IDE thing in any case),
because could not see how to support it with generator expressions.
2016-08-30 23:01:43 -04:00

75 lines
2.7 KiB
CMake

# Copyright (C) 2012 Modelon AB
# This program is free software: you can redistribute it and/or modify
# it under the terms of the BSD style license.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# FMILIB_License.txt file for more details.
# You should have received a copy of the FMILIB_License.txt file
# along with this program. If not, contact Modelon AB <http://www.modelon.com>.
# Merge_static_libs(outlib lib1 lib2 ... libn) merges a number of static
# libs into a single static library
function(merge_static_libs outlib )
set(libs ${ARGV})
list(REMOVE_AT libs 0)
list(REMOVE_DUPLICATES libs) # just in case
# First get the file names of the libraries to be merged
foreach(lib ${libs})
get_target_property(libtype ${lib} TYPE)
if(NOT libtype STREQUAL "STATIC_LIBRARY")
message(FATAL_ERROR "merge_static_libs can only process static libraries")
endif()
set(libfiles "${libfiles} $<TARGET_FILE:${lib}>")
endforeach()
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()
# 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()
add_custom_command(TARGET ${outlib} POST_BUILD
COMMAND ${CMAKE_RANLIB} ${outlibfile})
endif()
endfunction()