qBittorrent/cmake/Modules/FindLibtorrentRasterbar.cmake
2016-04-18 21:23:03 +02:00

106 lines
4.8 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)
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
-DTORRENT_DISABLE_GEO_IP
-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})
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()
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_LIBRARIES})
set(LibtorrentRasterbar_INCLUDE_DIRS ${LibtorrentRasterbar_INCLUDE_DIRS} ${OPENSSL_INCLUDE_DIRS})
set(LibtorrentRasterbar_OPENSSL_ENABLED ON)
endif()
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set LibtorrentRasterbar_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args(LibtorrentRasterbar DEFAULT_MSG
LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_INCLUDE_DIR
Boost_SYSTEM_FOUND
Boost_CHRONO_FOUND
Boost_RANDOM_FOUND)
mark_as_advanced(LibtorrentRasterbar_INCLUDE_DIR LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES
LibtorrentRasterbar_ENCRYPTION_INDEX)
if (LibtorrentRasterbar_FOUND AND NOT TARGET LibtorrentRasterbar::LibTorrent)
add_library(LibtorrentRasterbar::LibTorrent UNKNOWN IMPORTED)
set_target_properties(LibtorrentRasterbar::LibTorrent PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${LibtorrentRasterbar_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${LibtorrentRasterbar_LIBRARIES}"
INTERFACE_COMPILE_OPTIONS "${LibtorrentRasterbar_DEFINITIONS}"
)
endif()