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cmake: get and use only actual boost dependencies of libtorrent

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With pkg-config we can get a list of Boost components from Libtorrent
dependencies and make qBittorrent depend only on these libraries in
turn. For Windows user may provide a custom list via
LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES variable or use generic
list which consists of date_time, system, chrono, random, thread. As a
note: in case of using fully C++11 build, the actual list contains only
boost system library.
This commit is contained in:
Eugene Shalygin 2017-01-21 15:09:59 +01:00
parent 68e8f565e2
commit 0cb9884965
1 changed files with 34 additions and 11 deletions
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45
cmake/Modules/FindLibtorrentRasterbar.cmake
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@ -14,6 +14,11 @@
find_package(Threads REQUIRED)
find_package(PkgConfig QUIET)
macro(_detect_boost_components _outComponets librariesList)
string(REGEX MATCHALL "boost_[a-z_]+[-a-z]*" _boost_libraries "${librariesList}")
string(REGEX REPLACE "boost_([a-z_]+)[-a-z]*" "\\1" ${_outComponets} "${_boost_libraries}")
endmacro()
if(PKG_CONFIG_FOUND)
pkg_check_modules(PC_LIBTORRENT_RASTERBAR QUIET libtorrent-rasterbar)
endif()
@ -62,13 +67,34 @@ endif()
set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})
set(LibtorrentRasterbar_INCLUDE_DIRS ${LibtorrentRasterbar_INCLUDE_DIR})
if(NOT Boost_SYSTEM_FOUND OR NOT Boost_CHRONO_FOUND OR NOT Boost_RANDOM_FOUND)
find_package(Boost REQUIRED COMPONENTS date_time system chrono random thread)
set(LibtorrentRasterbar_LIBRARIES
${LibtorrentRasterbar_LIBRARIES} ${Boost_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
set(LibtorrentRasterbar_INCLUDE_DIRS
${LibtorrentRasterbar_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
endif()
# Without pkg-config, we can't possibly figure out the correct boost dependencies
if (LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
string(REPLACE ";" " " _boost_components "${LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES}")
else(LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
if(PC_LIBTORRENT_RASTERBAR_FOUND)
_detect_boost_components(_boost_cmpnts "${PC_LIBTORRENT_RASTERBAR_LIBRARIES}")
else()
# all possible boost dependencies
set(_boost_cmpnts
date_time
system
chrono
random
thread
)
endif()
list(SORT _boost_cmpnts)
message(STATUS "Libtorrent Boost dependencies: ${_boost_cmpnts}")
string(REPLACE ";" " " _boost_components "${_boost_cmpnts}")
endif(LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
find_package(Boost REQUIRED COMPONENTS ${_boost_components})
set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
foreach(_boost_cmpnt IN LISTS _boost_components)
list(APPEND LibtorrentRasterbar_LIBRARIES "Boost::${_boost_cmpnt}")
endforeach(_boost_cmpnt)
set(LibtorrentRasterbar_INCLUDE_DIRS ${LibtorrentRasterbar_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
list(FIND LibtorrentRasterbar_DEFINITIONS -DTORRENT_USE_OPENSSL LibtorrentRasterbar_ENCRYPTION_INDEX)
if(LibtorrentRasterbar_ENCRYPTION_INDEX GREATER -1)
@ -83,10 +109,7 @@ include(FindPackageHandleStandardArgs)
# if all listed variables are TRUE
find_package_handle_standard_args(LibtorrentRasterbar DEFAULT_MSG
LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_INCLUDE_DIR
Boost_SYSTEM_FOUND
Boost_CHRONO_FOUND
Boost_RANDOM_FOUND)
LibtorrentRasterbar_INCLUDE_DIR)
mark_as_advanced(LibtorrentRasterbar_INCLUDE_DIR LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES