aleajactaest/khanat-code-old
1
0
Fork 0
mirror of https://port.numenaute.org/aleajactaest/khanat-code-old.git synced 2024-11-30 15:45:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
khanat-code-old/code/CMakeModules/nel.cmake

474 lines
18 KiB
CMake
Raw Blame History

###
# Helper macro that generates .pc and installs it.
# Argument: name - the name of the .pc package, e.g. "nel-pacs.pc"
###
MACRO(NL_GEN_PC name)
IF(NOT WIN32)
CONFIGURE_FILE(${name}.in "${CMAKE_CURRENT_BINARY_DIR}/${name}")
INSTALL(FILES "${CMAKE_CURRENT_BINARY_DIR}/${name}" DESTINATION lib/pkgconfig)
ENDIF(NOT WIN32)
ENDMACRO(NL_GEN_PC)
###
#
###
MACRO(NL_TARGET_LIB name)
IF(WITH_STATIC)
ADD_LIBRARY(${name} STATIC ${ARGN})
ELSE(WITH_STATIC)
ADD_LIBRARY(${name} SHARED ${ARGN})
ENDIF(WITH_STATIC)
ENDMACRO(NL_TARGET_LIB)
###
#
###
MACRO(NL_TARGET_DRIVER name)
IF(WITH_STATIC_DRIVERS)
ADD_LIBRARY(${name} STATIC ${ARGN})
ELSE(WITH_STATIC_DRIVERS)
ADD_LIBRARY(${name} MODULE ${ARGN})
ENDIF(WITH_STATIC_DRIVERS)
ENDMACRO(NL_TARGET_DRIVER)
###
# Helper macro that sets the default library properties.
# Argument: name - the target name whose properties are being set
# Argument:
###
MACRO(NL_DEFAULT_PROPS name label)
GET_TARGET_PROPERTY(type ${name} TYPE)
IF(${type} STREQUAL SHARED_LIBRARY)
# Set versions only if target is a shared library
SET_TARGET_PROPERTIES(${name} PROPERTIES
VERSION ${NL_VERSION} SOVERSION ${NL_VERSION_MAJOR}
INSTALL_NAME_DIR ${NL_LIB_PREFIX}
PROJECT_LABEL ${label})
ELSE(${type} STREQUAL SHARED_LIBRARY)
SET_TARGET_PROPERTIES(${name} PROPERTIES
PROJECT_LABEL ${label})
ENDIF(${type} STREQUAL SHARED_LIBRARY)
IF(WITH_STLPORT AND WIN32)
SET_TARGET_PROPERTIES(${name} PROPERTIES COMPILE_FLAGS "/X")
ENDIF(WITH_STLPORT AND WIN32)
ENDMACRO(NL_DEFAULT_PROPS)
###
# Adds the target suffix on Windows.
# Argument: name - the library's target name.
###
MACRO(NL_ADD_LIB_SUFFIX name)
IF(WIN32)
SET_TARGET_PROPERTIES(${name} PROPERTIES DEBUG_POSTFIX "_d" RELEASE_POSTFIX "_r")
ENDIF(WIN32)
ENDMACRO(NL_ADD_LIB_SUFFIX)
###
# Adds the runtime link flags for Win32 binaries and links STLport.
# Argument: name - the target to add the link flags to.
###
MACRO(NL_ADD_RUNTIME_FLAGS name)
IF(WIN32)
# SET_TARGET_PROPERTIES(${name} PROPERTIES
# LINK_FLAGS_DEBUG "${CMAKE_LINK_FLAGS_DEBUG}"
# LINK_FLAGS_RELEASE "${CMAKE_LINK_FLAGS_RELEASE}")
ENDIF(WIN32)
IF(WITH_STLPORT)
TARGET_LINK_LIBRARIES(${name} ${STLPORT_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
ENDIF(WITH_STLPORT)
ENDMACRO(NL_ADD_RUNTIME_FLAGS)
MACRO(NL_ADD_STATIC_VID_DRIVERS name)
IF(WITH_STATIC_DRIVERS)
IF(WIN32)
IF(WITH_DRIVER_DIRECT3D)
TARGET_LINK_LIBRARIES(${name} nel_drv_direct3d_win)
ENDIF(WITH_DRIVER_DIRECT3D)
ENDIF(WIN32)
IF(WITH_DRIVER_OPENGL)
IF(WIN32)
TARGET_LINK_LIBRARIES(${name} nel_drv_opengl_win)
ELSE(WIN32)
TARGET_LINK_LIBRARIES(${name} nel_drv_opengl)
ENDIF(WIN32)
ENDIF(WITH_DRIVER_OPENGL)
ENDIF(WITH_STATIC_DRIVERS)
ENDMACRO(NL_ADD_STATIC_VID_DRIVERS)
MACRO(NL_ADD_STATIC_SND_DRIVERS name)
IF(WITH_STATIC_DRIVERS)
IF(WIN32)
IF(WITH_DRIVER_DSOUND)
TARGET_LINK_LIBRARIES(${name} nel_drv_dsound_win)
ENDIF(WITH_DRIVER_DSOUND)
IF(WITH_DRIVER_XAUDIO2)
TARGET_LINK_LIBRARIES(${name} nel_drv_xaudio2_win)
ENDIF(WITH_DRIVER_XAUDIO2)
IF(WITH_DRIVER_OPENAL)
TARGET_LINK_LIBRARIES(${name} nel_drv_openal_win)
ENDIF(WITH_DRIVER_OPENAL)
IF(WITH_DRIVER_FMOD)
TARGET_LINK_LIBRARIES(${name} nel_drv_fmod_win)
ENDIF(WITH_DRIVER_FMOD)
ELSE(WIN32)
IF(WITH_DRIVER_OPENAL)
TARGET_LINK_LIBRARIES(${name} nel_drv_openal)
ENDIF(WITH_DRIVER_OPENAL)
IF(WITH_DRIVER_FMOD)
TARGET_LINK_LIBRARIES(${name} nel_drv_fmod)
ENDIF(WITH_DRIVER_FMOD)
ENDIF(WIN32)
ENDIF(WITH_STATIC_DRIVERS)
ENDMACRO(NL_ADD_STATIC_SND_DRIVERS)
###
# Checks build vs. source location. Prevents In-Source builds.
###
MACRO(CHECK_OUT_OF_SOURCE)
IF(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
MESSAGE(FATAL_ERROR "
CMake generation for this project is not allowed within the source directory!
Remove the CMakeCache.txt file and try again from another folder, e.g.:
rm CMakeCache.txt
mkdir cmake
cd cmake
cmake -G \"Unix Makefiles\" ..
")
ENDIF(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
ENDMACRO(CHECK_OUT_OF_SOURCE)
MACRO(NL_SETUP_DEFAULT_OPTIONS)
###
# Features
###
OPTION(WITH_LOGGING "With Logging" ON )
OPTION(WITH_COVERAGE "With Code Coverage Support" OFF)
OPTION(WITH_PCH "With Precompiled Headers" ON )
OPTION(FINAL_VERSION "Build in Final Version mode" ON )
# Default to static building on Windows.
IF(WIN32)
OPTION(WITH_STATIC "With static libraries." ON )
ELSE(WIN32)
OPTION(WITH_STATIC "With static libraries." OFF)
ENDIF(WIN32)
OPTION(WITH_STATIC_DRIVERS "With static drivers." OFF)
###
# GUI toolkits
###
OPTION(WITH_GTK "With GTK Support" OFF)
OPTION(WITH_QT "With QT Support" OFF)
IF(WIN32 AND MFC_FOUND)
OPTION(WITH_MFC "With MFC Support" ON )
ELSE(WIN32 AND MFC_FOUND)
OPTION(WITH_MFC "With MFC Support" OFF)
ENDIF(WIN32 AND MFC_FOUND)
###
# Optional support
###
IF(WIN32)
OPTION(WITH_STLPORT "With STLport support." ON )
ELSE(WIN32)
OPTION(WITH_STLPORT "With STLport support." OFF)
ENDIF(WIN32)
OPTION(BUILD_DASHBOARD "Build to the CDash dashboard" OFF)
OPTION(WITH_NEL "Build NeL (nearly always required)." ON )
OPTION(WITH_NELNS "Build NeL Network Services." OFF)
OPTION(WITH_RYZOM "Build Ryzom Core." ON )
OPTION(WITH_SNOWBALLS "Build Snowballs." OFF)
ENDMACRO(NL_SETUP_DEFAULT_OPTIONS)
MACRO(NL_SETUP_NEL_DEFAULT_OPTIONS)
###
# Core libraries
###
OPTION(WITH_NET "Build NLNET" ON )
OPTION(WITH_3D "Build NL3D" ON )
OPTION(WITH_PACS "Build NLPACS" ON )
OPTION(WITH_GEORGES "Build NLGEORGES" ON )
OPTION(WITH_LIGO "Build NLLIGO" ON )
OPTION(WITH_LOGIC "Build NLLOGIC" ON )
OPTION(WITH_SOUND "Build NLSOUND" ON )
###
# Drivers Support
###
OPTION(WITH_DRIVER_OPENGL "Build OpenGL Driver (3D)" ON )
OPTION(WITH_DRIVER_DIRECT3D "Build Direct3D Driver (3D)" OFF)
OPTION(WITH_DRIVER_OPENAL "Build OpenAL Driver (Sound)" ON )
OPTION(WITH_DRIVER_FMOD "Build FMOD Driver (Sound)" OFF)
OPTION(WITH_DRIVER_DSOUND "Build DirectSound Driver (Sound)" OFF)
OPTION(WITH_DRIVER_XAUDIO2 "Build XAudio2 Driver (Sound)" OFF)
###
# Optional support
###
OPTION(WITH_NEL_CEGUI "Build CEGUI Renderer" OFF)
OPTION(WITH_NEL_TOOLS "Build NeL Tools" ON )
OPTION(WITH_NEL_MAXPLUGIN "Build NeL 3dsMax Plugin" OFF)
OPTION(WITH_NEL_SAMPLES "Build NeL Samples" ON )
OPTION(WITH_NEL_TESTS "Build NeL Unit Tests" ON )
ENDMACRO(NL_SETUP_NEL_DEFAULT_OPTIONS)
MACRO(NL_SETUP_NELNS_DEFAULT_OPTIONS)
###
# Core libraries
###
OPTION(WITH_NELNS_SERVER "Build NeLNS Services" ON )
OPTION(WITH_NELNS_LOGIN_SYSTEM "Build NeLNS Login System Tools" ON )
ENDMACRO(NL_SETUP_NELNS_DEFAULT_OPTIONS)
MACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
###
# Core libraries
###
OPTION(WITH_RYZOM_CLIENT "Build Ryzom Core Client" ON )
OPTION(WITH_RYZOM_TOOLS "Build Ryzom Core Tools" ON )
OPTION(WITH_RYZOM_SERVER "Build Ryzom Core Services" ON )
OPTION(WITH_RYZOM_SOUND "Enable Ryzom Core Sound" ON )
###
# Optional support
###
OPTION(WITH_LUA51 "Build Ryzom Core using Lua51" ON )
ENDMACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
MACRO(NL_SETUP_SNOWBALLS_DEFAULT_OPTIONS)
###
# Core libraries
###
OPTION(WITH_SNOWBALLS_CLIENT "Build Snowballs Client" ON )
OPTION(WITH_SNOWBALLS_SERVER "Build Snowballs Services" ON )
ENDMACRO(NL_SETUP_SNOWBALLS_DEFAULT_OPTIONS)
MACRO(NL_SETUP_BUILD)
#-----------------------------------------------------------------------------
# Setup the buildmode variables.
#
# None = NL_RELEASE
# Debug = NL_DEBUG
# Release = NL_RELEASE
SET(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "" FORCE)
IF(CMAKE_BUILD_TYPE MATCHES "Debug")
SET(NL_BUILD_MODE "NL_DEBUG")
ELSE(CMAKE_BUILD_TYPE MATCHES "Debug")
IF(CMAKE_BUILD_TYPE MATCHES "Release")
SET(NL_BUILD_MODE "NL_RELEASE")
ELSE(CMAKE_BUILD_TYPE MATCHES "Release")
SET(NL_BUILD_MODE "NL_RELEASE")
# enforce release mode if it's neither Debug nor Release
SET(CMAKE_BUILD_TYPE "Release" CACHE STRING "" FORCE)
ENDIF(CMAKE_BUILD_TYPE MATCHES "Release")
ENDIF(CMAKE_BUILD_TYPE MATCHES "Debug")
IF(WIN32)
# don't use a /O[012x] flag if you want custom optimizations
SET(SPEED_OPTIMIZATIONS "/Ob2 /Oi /Ot /Oy /GT /GF /GS-")
# without inlining it's unusable, use custom optimizations again
SET(MIN_OPTIMIZATIONS "/Ob1")
SET(PLATFORM_CFLAGS "/D_CRT_SECURE_NO_WARNINGS /DWIN32 /D_WINDOWS /W3 /Zi /Zm1000")
# Exceptions are only set for C++
SET(PLATFORM_CXXFLAGS "${PLATFORM_CFLAGS} /EHa")
# Common link flags
SET(PLATFORM_LINKFLAGS "-DEBUG")
SET(NL_DEBUG_CFLAGS "/MDd /RTC1 /D_DEBUG ${MIN_OPTIMIZATIONS}")
SET(NL_RELEASE_CFLAGS "/MD /D NDEBUG ${SPEED_OPTIMIZATIONS}")
SET(NL_DEBUG_LINKFLAGS "/NODEFAULTLIB:msvcrt /INCREMENTAL:YES")
SET(NL_RELEASE_LINKFLAGS "/OPT:REF /OPT:ICF /INCREMENTAL:NO")
ELSE(WIN32)
SET(PLATFORM_CFLAGS "-g -pipe -ftemplate-depth-48 -D_REENTRANT -Wall -ansi -W -Wpointer-arith -Wsign-compare -Wno-deprecated-declarations -Wno-multichar -Wno-unused -fno-strict-aliasing")
IF(WITH_COVERAGE)
SET(PLATFORM_CFLAGS "-fprofile-arcs -ftest-coverage ${PLATFORM_CFLAGS}")
ENDIF(WITH_COVERAGE)
IF(APPLE)
SET(PLATFORM_CFLAGS "-gdwarf-2 ${PLATFORM_CFLAGS}")
ENDIF(APPLE)
SET(PLATFORM_CXXFLAGS ${PLATFORM_CFLAGS})
IF(NOT APPLE)
SET(PLATFORM_LINKFLAGS "-Wl,--no-undefined -Wl,--as-needed")
ENDIF(NOT APPLE)
SET(NL_DEBUG_CFLAGS "-DNL_DEBUG -D_DEBUG")
SET(NL_RELEASE_CFLAGS "-DNL_RELEASE -DNDEBUG -O6")
ENDIF(WIN32)
# Determine host CPU
IF(UNIX AND NOT WIN32)
FIND_PROGRAM(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin )
IF(CMAKE_UNAME)
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_SYSTEM_PROCESSOR)
SET(CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR} CACHE INTERNAL "processor type (i386 and x86_64)")
IF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
ADD_DEFINITIONS(-DHAVE_X86_64)
ELSEIF(CMAKE_SYSTEM_PROCESSOR MATCHES "ia64")
ADD_DEFINITIONS(-DHAVE_IA64)
ELSE(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
ADD_DEFINITIONS(-DHAVE_X86)
ENDIF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
ELSE(CMAKE_UNAME) # Assume that if uname is not found that we're x86.
ADD_DEFINITIONS(-DHAVE_X86)
ENDIF(CMAKE_UNAME)
ENDIF(UNIX AND NOT WIN32)
ENDMACRO(NL_SETUP_BUILD)
MACRO(NL_SETUP_BUILD_FLAGS)
#SET(CMAKE_DEBUG_POSTFIX "_d")
#SET(CMAKE_RELEASE_POSTFIX "_r")
SET(CMAKE_C_FLAGS ${PLATFORM_CFLAGS} CACHE STRING "" FORCE)
SET(CMAKE_CXX_FLAGS ${PLATFORM_CXXFLAGS} CACHE STRING "" FORCE)
## Debug
SET(CMAKE_C_FLAGS_DEBUG ${NL_DEBUG_CFLAGS} CACHE STRING "" FORCE)
SET(CMAKE_CXX_FLAGS_DEBUG ${NL_DEBUG_CFLAGS} CACHE STRING "" FORCE)
SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${PLATFORM_LINKFLAGS} ${NL_DEBUG_LINKFLAGS}" CACHE STRING "" FORCE)
SET(CMAKE_MODULE_LINKER_FLAGS_DEBUG "${PLATFORM_LINKFLAGS} ${NL_DEBUG_LINKFLAGS}" CACHE STRING "" FORCE)
SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${PLATFORM_LINKFLAGS} ${NL_DEBUG_LINKFLAGS}" CACHE STRING "" FORCE)
## Release
SET(CMAKE_C_FLAGS_RELEASE ${NL_RELEASE_CFLAGS} CACHE STRING "" FORCE)
SET(CMAKE_CXX_FLAGS_RELEASE ${NL_RELEASE_CFLAGS} CACHE STRING "" FORCE)
SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "${PLATFORM_LINKFLAGS} ${NL_RELEASE_LINKFLAGS}" CACHE STRING "" FORCE)
SET(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${PLATFORM_LINKFLAGS} ${NL_RELEASE_LINKFLAGS}" CACHE STRING "" FORCE)
SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${PLATFORM_LINKFLAGS} ${NL_RELEASE_LINKFLAGS}" CACHE STRING "" FORCE)
ENDMACRO(NL_SETUP_BUILD_FLAGS)
MACRO(NL_SETUP_PREFIX_PATHS)
## Allow override of install_prefix/etc path.
IF(NOT NL_ETC_PREFIX)
IF(WIN32)
SET(NL_ETC_PREFIX "../etc/nel" CACHE PATH "Installation path for configurations")
ELSE(WIN32)
SET(NL_ETC_PREFIX "${CMAKE_INSTALL_PREFIX}/etc/nel" CACHE PATH "Installation path for configurations")
ENDIF(WIN32)
ENDIF(NOT NL_ETC_PREFIX)
## Allow override of install_prefix/share path.
IF(NOT NL_SHARE_PREFIX)
IF(WIN32)
SET(NL_SHARE_PREFIX "../share/nel" CACHE PATH "Installation path for data.")
ELSE(WIN32)
SET(NL_SHARE_PREFIX "${CMAKE_INSTALL_PREFIX}/share/nel" CACHE PATH "Installation path for data.")
ENDIF(WIN32)
ENDIF(NOT NL_SHARE_PREFIX)
## Allow override of install_prefix/sbin path.
IF(NOT NL_SBIN_PREFIX)
IF(WIN32)
SET(NL_SBIN_PREFIX "../sbin" CACHE PATH "Installation path for admin tools and services.")
ELSE(WIN32)
SET(NL_SBIN_PREFIX "${CMAKE_INSTALL_PREFIX}/sbin" CACHE PATH "Installation path for admin tools and services.")
ENDIF(WIN32)
ENDIF(NOT NL_SBIN_PREFIX)
## Allow override of install_prefix/bin path.
IF(NOT NL_BIN_PREFIX)
IF(WIN32)
SET(NL_BIN_PREFIX "../bin" CACHE PATH "Installation path for tools and applications.")
ELSE(WIN32)
SET(NL_BIN_PREFIX "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation path for tools and applications.")
ENDIF(WIN32)
ENDIF(NOT NL_BIN_PREFIX)
## Allow override of install_prefix/lib path.
IF(NOT NL_LIB_PREFIX)
IF(WIN32)
SET(NL_LIB_PREFIX "../lib" CACHE PATH "Installation path for libraries.")
ELSE(WIN32)
SET(NL_LIB_PREFIX "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation path for libraries.")
ENDIF(WIN32)
ENDIF(NOT NL_LIB_PREFIX)
## Allow override of install_prefix/lib path.
IF(NOT NL_DRIVER_PREFIX)
IF(WIN32)
SET(NL_DRIVER_PREFIX "../lib" CACHE PATH "Installation path for drivers.")
ELSE(WIN32)
SET(NL_DRIVER_PREFIX "${CMAKE_INSTALL_PREFIX}/lib/nel" CACHE PATH "Installation path for drivers.")
ENDIF(WIN32)
ENDIF(NOT NL_DRIVER_PREFIX)
ENDMACRO(NL_SETUP_PREFIX_PATHS)
MACRO(RYZOM_SETUP_PREFIX_PATHS)
## Allow override of install_prefix path.
IF(NOT RYZOM_PREFIX)
IF(WIN32)
SET(RYZOM_PREFIX "." CACHE PATH "Installation path")
ELSE(WIN32)
SET(RYZOM_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE PATH "Installation path")
ENDIF(WIN32)
ENDIF(NOT RYZOM_PREFIX)
## Allow override of install_prefix/etc path.
IF(NOT RYZOM_ETC_PREFIX)
IF(WIN32)
SET(RYZOM_ETC_PREFIX "." CACHE PATH "Installation path for configurations")
ELSE(WIN32)
SET(RYZOM_ETC_PREFIX "${CMAKE_INSTALL_PREFIX}/etc/ryzom" CACHE PATH "Installation path for configurations")
ENDIF(WIN32)
ENDIF(NOT RYZOM_ETC_PREFIX)
## Allow override of install_prefix/share path.
IF(NOT RYZOM_SHARE_PREFIX)
IF(WIN32)
SET(RYZOM_SHARE_PREFIX "." CACHE PATH "Installation path for data.")
ELSE(WIN32)
SET(RYZOM_SHARE_PREFIX "${CMAKE_INSTALL_PREFIX}/share/ryzom" CACHE PATH "Installation path for data.")
ENDIF(WIN32)
ENDIF(NOT RYZOM_SHARE_PREFIX)
## Allow override of install_prefix/sbin path.
IF(NOT RYZOM_SBIN_PREFIX)
IF(WIN32)
SET(RYZOM_SBIN_PREFIX "." CACHE PATH "Installation path for admin tools and services.")
ELSE(WIN32)
SET(RYZOM_SBIN_PREFIX "${CMAKE_INSTALL_PREFIX}/sbin" CACHE PATH "Installation path for admin tools and services.")
ENDIF(WIN32)
ENDIF(NOT RYZOM_SBIN_PREFIX)
## Allow override of install_prefix/bin path.
IF(NOT RYZOM_BIN_PREFIX)
IF(WIN32)
SET(RYZOM_BIN_PREFIX "." CACHE PATH "Installation path for tools and applications.")
ELSE(WIN32)
SET(RYZOM_BIN_PREFIX "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation path for tools.")
ENDIF(WIN32)
ENDIF(NOT RYZOM_BIN_PREFIX)
## Allow override of install_prefix/games path.
IF(NOT RYZOM_GAMES_PREFIX)
IF(WIN32)
SET(RYZOM_GAMES_PREFIX "." CACHE PATH "Installation path for tools and applications.")
ELSE(WIN32)
SET(RYZOM_GAMES_PREFIX "${CMAKE_INSTALL_PREFIX}/games" CACHE PATH "Installation path for client.")
ENDIF(WIN32)
ENDIF(NOT RYZOM_GAMES_PREFIX)
ENDMACRO(RYZOM_SETUP_PREFIX_PATHS)
Reference in a new issue View git blame Copy permalink