qBittorrent/cmake/Modules/FindLibtorrentRasterbar.cmake
2019-06-21 01:48:55 +08:00

127 lines
5.6 KiB
CMake

# - Try to find libtorrent-rasterbar
#
# If not using pkg-config, you can pre-set LibtorrentRasterbar_CUSTOM_DEFINITIONS
# for definitions unrelated to Boost's separate compilation (which are already
# decided by the LibtorrentRasterbar_USE_STATIC_LIBS variable).
#
# Once done this will define
# LibtorrentRasterbar_FOUND - System has libtorrent-rasterbar
# LibtorrentRasterbar_INCLUDE_DIRS - The libtorrent-rasterbar include directories
# LibtorrentRasterbar_LIBRARIES - The libraries needed to use libtorrent-rasterbar
# LibtorrentRasterbar_DEFINITIONS - Compiler switches required for using libtorrent-rasterbar
# LibtorrentRasterbar_OPENSSL_ENABLED - libtorrent-rasterbar uses and links against OpenSSL
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()
if(LibtorrentRasterbar_USE_STATIC_LIBS)
set(LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX})
endif()
if(PC_LIBTORRENT_RASTERBAR_FOUND)
set(LibtorrentRasterbar_DEFINITIONS ${PC_LIBTORRENT_RASTERBAR_CFLAGS})
else()
if(LibtorrentRasterbar_CUSTOM_DEFINITIONS)
set(LibtorrentRasterbar_DEFINITIONS ${LibtorrentRasterbar_CUSTOM_DEFINITIONS})
else()
# Without pkg-config, we can't possibly figure out the correct build flags.
# libtorrent is very picky about those. Let's take a set of defaults and
# hope that they apply. If not, you the user are on your own.
set(LibtorrentRasterbar_DEFINITIONS
-DTORRENT_USE_OPENSSL
-DBOOST_ASIO_ENABLE_CANCELIO
-DUNICODE -D_UNICODE -D_FILE_OFFSET_BITS=64)
endif()
if(NOT LibtorrentRasterbar_USE_STATIC_LIBS)
list(APPEND LibtorrentRasterbar_DEFINITIONS
-DTORRENT_LINKING_SHARED
-DBOOST_SYSTEM_DYN_LINK -DBOOST_CHRONO_DYN_LINK)
endif()
endif()
message(STATUS "libtorrent definitions: ${LibtorrentRasterbar_DEFINITIONS}")
find_path(LibtorrentRasterbar_INCLUDE_DIR libtorrent
HINTS ${PC_LIBTORRENT_RASTERBAR_INCLUDEDIR} ${PC_LIBTORRENT_RASTERBAR_INCLUDE_DIRS}
PATH_SUFFIXES libtorrent-rasterbar)
find_library(LibtorrentRasterbar_LIBRARY NAMES torrent-rasterbar libtorrent
HINTS ${PC_LIBTORRENT_RASTERBAR_LIBDIR} ${PC_LIBTORRENT_RASTERBAR_LIBRARY_DIRS})
if(LibtorrentRasterbar_USE_STATIC_LIBS)
set(CMAKE_FIND_LIBRARY_SUFFIXES ${LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
endif()
set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})
set(LibtorrentRasterbar_INCLUDE_DIRS ${LibtorrentRasterbar_INCLUDE_DIR})
# Without pkg-config, we can't possibly figure out the correct boost dependencies
if (LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
set(_boost_components "${LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES}")
else(LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
if(PC_LIBTORRENT_RASTERBAR_FOUND)
_detect_boost_components(_boost_components "${PC_LIBTORRENT_RASTERBAR_LIBRARIES}")
else()
# all possible boost dependencies
set(_boost_components
date_time
system
chrono
random
thread
)
endif()
endif(LibtorrentRasterbar_CUSTOM_BOOST_DEPENDENCIES)
list(SORT _boost_components)
message(STATUS "Libtorrent Boost dependencies: ${_boost_components}")
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})
list(FIND LibtorrentRasterbar_DEFINITIONS -DTORRENT_USE_OPENSSL LibtorrentRasterbar_ENCRYPTION_INDEX)
if(LibtorrentRasterbar_ENCRYPTION_INDEX GREATER -1)
find_package(OpenSSL REQUIRED)
set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARIES} OpenSSL::SSL OpenSSL::Crypto)
list(APPEND LibtorrentRasterbar_INCLUDE_DIRS "${OPENSSL_INCLUDE_DIR}")
set(LibtorrentRasterbar_OPENSSL_ENABLED ON)
endif()
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set LibtorrentRasterbar_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args(LibtorrentRasterbar DEFAULT_MSG
LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_INCLUDE_DIR)
mark_as_advanced(LibtorrentRasterbar_INCLUDE_DIR LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES
LibtorrentRasterbar_ENCRYPTION_INDEX)
if (LibtorrentRasterbar_FOUND AND NOT TARGET LibtorrentRasterbar::torrent-rasterbar)
add_library(LibtorrentRasterbar::torrent-rasterbar UNKNOWN IMPORTED)
set_target_properties(LibtorrentRasterbar::torrent-rasterbar PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${LibtorrentRasterbar_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${LibtorrentRasterbar_LIBRARIES}"
INTERFACE_COMPILE_OPTIONS "${LibtorrentRasterbar_DEFINITIONS}"
)
endif()