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Try to use config mode first while looking for the package

This commit is contained in:
Eugene Shalygin 2018-05-02 12:48:30 +02:00 committed by Arvid Norberg
parent a626f75c5e
commit 8b87b42a5a
1 changed files with 123 additions and 73 deletions
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62
examples/cmake/FindLibtorrentRasterbar.cmake
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@ -1,6 +1,8 @@
# - Try to find libtorrent-rasterbar
#
# If not using pkg-config, you can pre-set LibtorrentRasterbar_CUSTOM_DEFINITIONS
# This module tries to locate libtorrent-rasterbar Config.cmake files and uses pkg-config if available
# and the config file could not be found.
# If that does not work, 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).
#
@ -10,8 +12,40 @@
# 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
# Libtorrent::torrent-rasterbar imported target will be created
find_package(Threads REQUIRED)
# Let's begin with the config mode
set(_exactKeyword "")
if (${${CMAKE_FIND_PACKAGE_NAME}_FIND_VERSION_EXACT})
set(_exactKeyword "EXACT")
endif()
find_package(LibtorrentRasterbar ${${CMAKE_FIND_PACKAGE_NAME}_FIND_VERSION} ${_exactKeyword} CONFIG
NAMES libtorrent-rasterbar LibtorrentRasterbar
)
if (LibtorrentRasterbar_FOUND)
if (NOT ${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
message(STATUS "LibtorrentRasterbar package found in ${LibtorrentRasterbar_DIR}")
message(STATUS "LibtorrentRasterbar version: ${LibtorrentRasterbar_VERSION}")
endif()
# Extract target properties into this module variables
get_target_property(LibtorrentRasterbar_INCLUDE_DIRS Libtorrent::torrent-rasterbar INTERFACE_INCLUDE_DIRECTORIES)
get_target_property(LibtorrentRasterbar_LIBRARIES Libtorrent::torrent-rasterbar IMPORTED_LOCATION)
get_target_property(_iface_link_libs Libtorrent::torrent-rasterbar INTERFACE_LINK_LIBRARIES)
list(APPEND LibtorrentRasterbar_LIBRARIES ${_iface_link_libs})
get_target_property(LibtorrentRasterbar_DEFINITIONS Libtorrent::torrent-rasterbar INTERFACE_COMPILE_DEFINITIONS)
get_target_property(_iface_compile_options Libtorrent::torrent-rasterbar INTERFACE_COMPILE_OPTIONS)
list(APPEND LibtorrentRasterbar_DEFINITIONS ${_iface_compile_options})
list(FIND _iface_link_libs "OpenSSL::SSL" _openssl_lib_index)
if (_openssl_lib_index GREATER -1)
set(LibtorrentRasterbar_OPENSSL_ENABLED TRUE)
else()
set(LibtorrentRasterbar_OPENSSL_ENABLED FALSE)
endif()
else()
find_package(Threads QUIET REQUIRED)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
@ -46,7 +80,9 @@ else()
endif()
endif()
if (NOT ${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
message(STATUS "libtorrent definitions: ${LibtorrentRasterbar_DEFINITIONS}")
endif()
find_path(LibtorrentRasterbar_INCLUDE_DIR libtorrent
HINTS ${PC_LIBTORRENT_RASTERBAR_INCLUDEDIR} ${PC_LIBTORRENT_RASTERBAR_INCLUDE_DIRS}
@ -62,8 +98,8 @@ 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_RANDOM_FOUND)
find_package(Boost REQUIRED COMPONENTS system random)
if(NOT Boost_SYSTEM_FOUND)
find_package(Boost QUIET REQUIRED COMPONENTS system)
set(LibtorrentRasterbar_LIBRARIES
${LibtorrentRasterbar_LIBRARIES} ${Boost_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
set(LibtorrentRasterbar_INCLUDE_DIRS
@ -72,7 +108,7 @@ endif()
list(FIND LibtorrentRasterbar_DEFINITIONS -DTORRENT_USE_OPENSSL LibtorrentRasterbar_ENCRYPTION_INDEX)
if(LibtorrentRasterbar_ENCRYPTION_INDEX GREATER -1)
find_package(OpenSSL REQUIRED)
find_package(OpenSSL QUIET REQUIRED)
set(LibtorrentRasterbar_LIBRARIES ${LibtorrentRasterbar_LIBRARIES} ${OPENSSL_LIBRARIES})
set(LibtorrentRasterbar_INCLUDE_DIRS ${LibtorrentRasterbar_INCLUDE_DIRS} ${OPENSSL_INCLUDE_DIRS})
set(LibtorrentRasterbar_OPENSSL_ENABLED ON)
@ -85,8 +121,22 @@ find_package_handle_standard_args(LibtorrentRasterbar DEFAULT_MSG
LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_INCLUDE_DIR
Boost_SYSTEM_FOUND
Boost_RANDOM_FOUND)
)
mark_as_advanced(LibtorrentRasterbar_INCLUDE_DIR LibtorrentRasterbar_LIBRARY
LibtorrentRasterbar_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES
LibtorrentRasterbar_ENCRYPTION_INDEX)
if (LibtorrentRasterbar_FOUND AND NOT TARGET Libtorrent::torrent-rasterbar)
add_library(Libtorrent::torrent-rasterbar SHARED IMPORTED)
set_target_properties(Libtorrent::torrent-rasterbar PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${LibtorrentRasterbar_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${LibtorrentRasterbar_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${LibtorrentRasterbar_LIBRARIES}"
INTERFACE_COMPILE_DEFINITIONS "${LibtorrentRasterbar_DEFINITIONS}"
)
endif()
endif()