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function(avif_collect_deps target out_deps)
get_target_property(current_deps ${target} INTERFACE_LINK_LIBRARIES)
if(NOT current_deps)
set(current_deps "") # if no dependencies, replace "current_deps-NOTFOUND" with empty list
endif()
# Remove entries between ::@(directory-id) and ::@
# Such entries are added by target_link_libraries() calls outside the target's directory
set(filtered_deps "")
set(in_special_block FALSE)
foreach(dep IN LISTS current_deps)
if("${dep}" MATCHES "^::@\\(.*\\)$")
set(in_special_block TRUE) # Latch on
elseif("${dep}" STREQUAL "::@")
set(in_special_block FALSE) # Latch off
elseif(NOT in_special_block)
string(REGEX REPLACE "\\\$<BUILD_INTERFACE:([^>]*)>" "\\1" dep ${dep})
string(REGEX REPLACE "\\\$<LINK_ONLY:([^>]*)>" "\\1" dep ${dep})
if(TARGET ${dep})
get_target_property(_aliased_dep ${dep} ALIASED_TARGET)
if(_aliased_dep)
list(APPEND filtered_deps ${_aliased_dep})
else()
list(APPEND filtered_deps ${dep})
endif()
endif()
endif()
endforeach()
set(all_deps ${filtered_deps})
foreach(dep IN LISTS filtered_deps)
# Avoid infinite recursion if the target has a cyclic dependency
if(NOT "${dep}" IN_LIST ${out_deps})
avif_collect_deps(${dep} dep_child_deps)
list(APPEND all_deps ${dep_child_deps})
endif()
endforeach()
list(REMOVE_DUPLICATES all_deps)
set(${out_deps} "${all_deps}" PARENT_SCOPE)
endfunction()
function(merge_static_libs target in_target)
set(args ${ARGN})
set(dependencies ${in_target})
set(libs $<TARGET_FILE:${in_target}>)
set(source_file ${CMAKE_CURRENT_BINARY_DIR}/${target}_depends.c)
add_library(${target} STATIC ${source_file})
get_target_property(include_dirs ${in_target} INTERFACE_INCLUDE_DIRECTORIES)
if(include_dirs)
target_include_directories(${target} PUBLIC ${include_dirs})
endif()
avif_collect_deps(${in_target} lib_deps)
foreach(lib ${lib_deps})
get_target_property(child_target_type ${lib} TYPE)
if(${child_target_type} STREQUAL "INTERFACE_LIBRARY")
continue()
endif()
get_target_property(link_dirs ${lib} INTERFACE_LINK_DIRECTORIES)
if(link_dirs)
target_link_directories(${target} PUBLIC ${link_dirs})
endif()
get_target_property(is_avif_local ${lib} AVIF_LOCAL)
if(is_avif_local)
list(APPEND libs $<TARGET_FILE:${lib}>)
list(APPEND dependencies "${lib}")
endif()
endforeach()
list(REMOVE_DUPLICATES libs)
add_custom_command(
OUTPUT ${source_file} DEPENDS ${dependencies} COMMAND ${CMAKE_COMMAND} -E echo \"const int dummy = 0\;\" > ${source_file}
)
add_custom_command(TARGET ${target} POST_BUILD COMMAND ${CMAKE_COMMAND} -E remove $<TARGET_FILE:${target}>)
if(APPLE)
add_custom_command(
TARGET ${target}
POST_BUILD
COMMENT "Merge static libraries with libtool"
COMMAND xcrun libtool -static -o $<TARGET_FILE:${target}> -no_warning_for_no_symbols ${libs}
)
elseif(CMAKE_C_COMPILER_ID MATCHES "^(Clang|GNU|Intel|IntelLLVM)$")
add_custom_command(
TARGET ${target}
POST_BUILD
COMMENT "Merge static libraries with ar"
COMMAND ${CMAKE_COMMAND} -E echo CREATE $<TARGET_FILE:${target}> >script.ar
)
foreach(lib ${libs})
add_custom_command(TARGET ${target} POST_BUILD COMMAND ${CMAKE_COMMAND} -E echo ADDLIB ${lib} >>script.ar)
endforeach()
add_custom_command(
TARGET ${target}
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E echo SAVE >>script.ar
COMMAND ${CMAKE_COMMAND} -E echo END >>script.ar
COMMAND ${CMAKE_AR} -M <script.ar
COMMAND ${CMAKE_COMMAND} -E remove script.ar
)
elseif(MSVC)
if(CMAKE_LIBTOOL)
set(BUNDLE_TOOL ${CMAKE_LIBTOOL})
else()
find_program(BUNDLE_TOOL lib HINTS "${CMAKE_C_COMPILER}/..")
if(NOT BUNDLE_TOOL)
message(FATAL_ERROR "Cannot locate lib.exe to bundle libraries")
endif()
endif()
add_custom_command(
TARGET ${target}
POST_BUILD
COMMENT "Merge static libraries with lib.exe"
COMMAND ${BUNDLE_TOOL} /NOLOGO /OUT:$<TARGET_FILE:${target}> ${libs}
)
else()
message(FATAL_ERROR "Unsupported platform for static link merging")
endif()
endfunction()
|
