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|
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright 2016 Blender Foundation. All rights reserved.
# Libraries configuration for any *nix system including Linux and Unix (excluding APPLE).
# Detect precompiled library directory
if(NOT DEFINED LIBDIR)
# Path to a locally compiled libraries.
set(LIBDIR_NAME ${CMAKE_SYSTEM_NAME}_${CMAKE_SYSTEM_PROCESSOR})
string(TOLOWER ${LIBDIR_NAME} LIBDIR_NAME)
set(LIBDIR_NATIVE_ABI ${CMAKE_SOURCE_DIR}/../lib/${LIBDIR_NAME})
# Path to precompiled libraries with known CentOS 7 ABI.
set(LIBDIR_CENTOS7_ABI ${CMAKE_SOURCE_DIR}/../lib/linux_centos7_x86_64)
# Choose the best suitable libraries.
if(EXISTS ${LIBDIR_NATIVE_ABI})
set(LIBDIR ${LIBDIR_NATIVE_ABI})
elseif(EXISTS ${LIBDIR_CENTOS7_ABI})
set(LIBDIR ${LIBDIR_CENTOS7_ABI})
set(WITH_CXX11_ABI OFF)
if(CMAKE_COMPILER_IS_GNUCC AND
CMAKE_C_COMPILER_VERSION VERSION_LESS 9.3)
message(FATAL_ERROR "GCC version must be at least 9.3 for precompiled libraries, found ${CMAKE_C_COMPILER_VERSION}")
endif()
endif()
# Avoid namespace pollustion.
unset(LIBDIR_NATIVE_ABI)
unset(LIBDIR_CENTOS7_ABI)
endif()
# Support restoring this value once pre-compiled libraries have been handled.
set(WITH_STATIC_LIBS_INIT ${WITH_STATIC_LIBS})
if(EXISTS ${LIBDIR})
message(STATUS "Using pre-compiled LIBDIR: ${LIBDIR}")
file(GLOB LIB_SUBDIRS ${LIBDIR}/*)
# Ignore Mesa software OpenGL libraries, they are not intended to be
# linked against but to optionally override at runtime.
list(REMOVE_ITEM LIB_SUBDIRS ${LIBDIR}/mesa)
# NOTE: Make sure "proper" compiled zlib comes first before the one
# which is a part of OpenCollada. They have different ABI, and we
# do need to use the official one.
set(CMAKE_PREFIX_PATH ${LIBDIR}/zlib ${LIB_SUBDIRS})
include(platform_old_libs_update)
set(WITH_STATIC_LIBS ON)
# OpenMP usually can't be statically linked into shared libraries,
# due to not being compiled with position independent code.
if(NOT WITH_PYTHON_MODULE)
set(WITH_OPENMP_STATIC ON)
endif()
set(Boost_NO_BOOST_CMAKE ON)
set(BOOST_ROOT ${LIBDIR}/boost)
set(BOOST_LIBRARYDIR ${LIBDIR}/boost/lib)
set(Boost_NO_SYSTEM_PATHS ON)
set(OPENEXR_ROOT_DIR ${LIBDIR}/openexr)
set(CLANG_ROOT_DIR ${LIBDIR}/llvm)
endif()
if(WITH_STATIC_LIBS)
string(APPEND CMAKE_EXE_LINKER_FLAGS " -static-libstdc++")
endif()
# Wrapper to prefer static libraries
macro(find_package_wrapper)
if(WITH_STATIC_LIBS)
find_package_static(${ARGV})
else()
find_package(${ARGV})
endif()
endmacro()
# ----------------------------------------------------------------------------
# Precompiled Libraries
#
# These are libraries that may be precompiled. For this we disable searching in
# the system directories so that we don't accidentally use them instead.
if(EXISTS ${LIBDIR})
without_system_libs_begin()
endif()
find_package_wrapper(JPEG REQUIRED)
find_package_wrapper(PNG REQUIRED)
find_package_wrapper(ZLIB REQUIRED)
find_package_wrapper(Zstd REQUIRED)
if(NOT WITH_SYSTEM_FREETYPE)
# FreeType compiled with Brotli compression for woff2.
find_package_wrapper(Freetype REQUIRED)
if(EXISTS ${LIBDIR})
find_package_wrapper(Brotli REQUIRED)
# NOTE: This is done on WIN32 & APPLE but fails on some Linux systems.
# See: https://devtalk.blender.org/t/22536
# So `BROTLI_LIBRARIES` need to be added directly after `FREETYPE_LIBRARIES`.
#
# list(APPEND FREETYPE_LIBRARIES
# ${BROTLI_LIBRARIES}
# )
endif()
endif()
if(WITH_PYTHON)
# No way to set py35, remove for now.
# find_package(PythonLibs)
# Use our own instead, since without py is such a rare case,
# require this package
# XXX Linking errors with debian static python :/
# find_package_wrapper(PythonLibsUnix REQUIRED)
find_package(PythonLibsUnix REQUIRED)
endif()
if(WITH_IMAGE_OPENEXR)
find_package_wrapper(OpenEXR) # our own module
if(NOT OPENEXR_FOUND)
set(WITH_IMAGE_OPENEXR OFF)
endif()
endif()
if(WITH_IMAGE_OPENJPEG)
find_package_wrapper(OpenJPEG)
if(NOT OPENJPEG_FOUND)
set(WITH_IMAGE_OPENJPEG OFF)
endif()
endif()
if(WITH_IMAGE_TIFF)
# XXX Linking errors with debian static tiff :/
# find_package_wrapper(TIFF)
find_package(TIFF)
if(NOT TIFF_FOUND)
set(WITH_IMAGE_TIFF OFF)
endif()
endif()
if(WITH_OPENAL)
find_package_wrapper(OpenAL)
if(NOT OPENAL_FOUND)
set(WITH_OPENAL OFF)
endif()
endif()
if(WITH_SDL)
if(WITH_SDL_DYNLOAD)
set(SDL_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/extern/sdlew/include/SDL2")
set(SDL_LIBRARY)
else()
find_package_wrapper(SDL2)
if(SDL2_FOUND)
# Use same names for both versions of SDL until we move to 2.x.
set(SDL_INCLUDE_DIR "${SDL2_INCLUDE_DIR}")
set(SDL_LIBRARY "${SDL2_LIBRARY}")
set(SDL_FOUND "${SDL2_FOUND}")
else()
find_package_wrapper(SDL)
endif()
mark_as_advanced(
SDL_INCLUDE_DIR
SDL_LIBRARY
)
# unset(SDLMAIN_LIBRARY CACHE)
if(NOT SDL_FOUND)
set(WITH_SDL OFF)
endif()
endif()
endif()
# Codecs
if(WITH_CODEC_SNDFILE)
find_package_wrapper(SndFile)
if(NOT SNDFILE_FOUND)
set(WITH_CODEC_SNDFILE OFF)
endif()
endif()
if(WITH_CODEC_FFMPEG)
if(EXISTS ${LIBDIR})
set(FFMPEG_ROOT_DIR ${LIBDIR}/ffmpeg)
# Override FFMPEG components to also include static library dependencies
# included with precompiled libraries, and to ensure correct link order.
set(FFMPEG_FIND_COMPONENTS
avformat avcodec avdevice avutil swresample swscale
sndfile
FLAC
mp3lame
opus
theora theoradec theoraenc
vorbis vorbisenc vorbisfile ogg
vpx
x264
xvidcore)
elseif(FFMPEG)
# Old cache variable used for root dir, convert to new standard.
set(FFMPEG_ROOT_DIR ${FFMPEG})
endif()
find_package(FFmpeg)
if(NOT FFMPEG_FOUND)
set(WITH_CODEC_FFMPEG OFF)
message(STATUS "FFmpeg not found, disabling it")
endif()
endif()
if(WITH_FFTW3)
find_package_wrapper(Fftw3)
if(NOT FFTW3_FOUND)
set(WITH_FFTW3 OFF)
endif()
endif()
if(WITH_OPENCOLLADA)
find_package_wrapper(OpenCOLLADA)
if(OPENCOLLADA_FOUND)
if(WITH_STATIC_LIBS)
# PCRE is bundled with OpenCollada without headers, so can't use
# find_package reliably to detect it.
set(PCRE_LIBRARIES ${LIBDIR}/opencollada/lib/libpcre.a)
else()
find_package_wrapper(PCRE)
endif()
find_package_wrapper(XML2)
else()
set(WITH_OPENCOLLADA OFF)
endif()
endif()
if(WITH_MEM_JEMALLOC)
find_package_wrapper(JeMalloc)
if(NOT JEMALLOC_FOUND)
set(WITH_MEM_JEMALLOC OFF)
endif()
endif()
if(WITH_INPUT_NDOF)
find_package_wrapper(Spacenav)
if(SPACENAV_FOUND)
# use generic names within blenders buildsystem.
set(NDOF_INCLUDE_DIRS ${SPACENAV_INCLUDE_DIRS})
set(NDOF_LIBRARIES ${SPACENAV_LIBRARIES})
else()
set(WITH_INPUT_NDOF OFF)
endif()
endif()
if(WITH_CYCLES AND WITH_CYCLES_OSL)
set(CYCLES_OSL ${LIBDIR}/osl CACHE PATH "Path to OpenShadingLanguage installation")
if(EXISTS ${CYCLES_OSL} AND NOT OSL_ROOT)
set(OSL_ROOT ${CYCLES_OSL})
endif()
find_package_wrapper(OSL)
if(OSL_FOUND)
if(${OSL_LIBRARY_VERSION_MAJOR} EQUAL "1" AND ${OSL_LIBRARY_VERSION_MINOR} LESS "6")
# Note: --whole-archive is needed to force loading of all symbols in liboslexec,
# otherwise LLVM is missing the osl_allocate_closure_component function
set(OSL_LIBRARIES
${OSL_OSLCOMP_LIBRARY}
-Wl,--whole-archive ${OSL_OSLEXEC_LIBRARY}
-Wl,--no-whole-archive ${OSL_OSLQUERY_LIBRARY}
)
endif()
else()
message(STATUS "OSL not found, disabling it from Cycles")
set(WITH_CYCLES_OSL OFF)
endif()
endif()
if(WITH_OPENVDB)
find_package_wrapper(OpenVDB)
find_package_wrapper(Blosc)
if(NOT OPENVDB_FOUND)
set(WITH_OPENVDB OFF)
set(WITH_OPENVDB_BLOSC OFF)
message(STATUS "OpenVDB not found, disabling it")
elseif(NOT BLOSC_FOUND)
set(WITH_OPENVDB_BLOSC OFF)
message(STATUS "Blosc not found, disabling it for OpenVBD")
endif()
endif()
if(WITH_NANOVDB)
find_package_wrapper(NanoVDB)
if(NOT NANOVDB_FOUND)
set(WITH_NANOVDB OFF)
message(STATUS "NanoVDB not found, disabling it")
endif()
endif()
if(WITH_CPU_SIMD AND SUPPORT_NEON_BUILD)
find_package_wrapper(sse2neon)
endif()
if(WITH_ALEMBIC)
find_package_wrapper(Alembic)
if(NOT ALEMBIC_FOUND)
set(WITH_ALEMBIC OFF)
endif()
endif()
if(WITH_USD)
find_package_wrapper(USD)
if(NOT USD_FOUND)
set(WITH_USD OFF)
endif()
endif()
if(WITH_BOOST)
# uses in build instructions to override include and library variables
if(NOT BOOST_CUSTOM)
if(WITH_STATIC_LIBS)
set(Boost_USE_STATIC_LIBS ON)
endif()
set(Boost_USE_MULTITHREADED ON)
set(__boost_packages filesystem regex thread date_time)
if(WITH_CYCLES AND WITH_CYCLES_OSL)
if(NOT (${OSL_LIBRARY_VERSION_MAJOR} EQUAL "1" AND ${OSL_LIBRARY_VERSION_MINOR} LESS "6"))
list(APPEND __boost_packages wave)
else()
endif()
endif()
if(WITH_INTERNATIONAL)
list(APPEND __boost_packages locale)
endif()
if(WITH_OPENVDB)
list(APPEND __boost_packages iostreams)
endif()
list(APPEND __boost_packages system)
find_package(Boost 1.48 COMPONENTS ${__boost_packages})
if(NOT Boost_FOUND)
# try to find non-multithreaded if -mt not found, this flag
# doesn't matter for us, it has nothing to do with thread
# safety, but keep it to not disturb build setups
set(Boost_USE_MULTITHREADED OFF)
find_package(Boost 1.48 COMPONENTS ${__boost_packages})
endif()
unset(__boost_packages)
if(Boost_USE_STATIC_LIBS AND WITH_BOOST_ICU)
find_package(IcuLinux)
endif()
mark_as_advanced(Boost_DIR) # why doesn't boost do this?
mark_as_advanced(Boost_INCLUDE_DIR) # why doesn't boost do this?
endif()
set(BOOST_INCLUDE_DIR ${Boost_INCLUDE_DIRS})
set(BOOST_LIBRARIES ${Boost_LIBRARIES})
set(BOOST_LIBPATH ${Boost_LIBRARY_DIRS})
set(BOOST_DEFINITIONS "-DBOOST_ALL_NO_LIB")
if(Boost_USE_STATIC_LIBS AND WITH_BOOST_ICU)
find_package(IcuLinux)
list(APPEND BOOST_LIBRARIES ${ICU_LIBRARIES})
endif()
endif()
if(WITH_PUGIXML)
find_package_wrapper(PugiXML)
if(NOT PUGIXML_FOUND)
set(WITH_PUGIXML OFF)
message(STATUS "PugiXML not found, disabling WITH_PUGIXML")
endif()
endif()
if(WITH_IMAGE_WEBP)
set(WEBP_ROOT_DIR ${LIBDIR}/webp)
find_package_wrapper(WebP)
if(NOT WEBP_FOUND)
set(WITH_IMAGE_WEBP OFF)
message(WARNING "WebP not found, disabling WITH_IMAGE_WEBP")
endif()
endif()
if(WITH_OPENIMAGEIO)
find_package_wrapper(OpenImageIO)
set(OPENIMAGEIO_LIBRARIES
${OPENIMAGEIO_LIBRARIES}
${PNG_LIBRARIES}
${JPEG_LIBRARIES}
${ZLIB_LIBRARIES}
${BOOST_LIBRARIES}
)
set(OPENIMAGEIO_LIBPATH) # TODO, remove and reference the absolute path everywhere
set(OPENIMAGEIO_DEFINITIONS "")
if(WITH_IMAGE_TIFF)
list(APPEND OPENIMAGEIO_LIBRARIES "${TIFF_LIBRARY}")
endif()
if(WITH_IMAGE_OPENEXR)
list(APPEND OPENIMAGEIO_LIBRARIES "${OPENEXR_LIBRARIES}")
endif()
if(WITH_IMAGE_WEBP)
list(APPEND OPENIMAGEIO_LIBRARIES "${WEBP_LIBRARIES}")
endif()
if(NOT OPENIMAGEIO_FOUND)
set(WITH_OPENIMAGEIO OFF)
message(STATUS "OpenImageIO not found, disabling WITH_CYCLES")
endif()
endif()
if(WITH_OPENCOLORIO)
find_package_wrapper(OpenColorIO 2.0.0)
set(OPENCOLORIO_LIBRARIES ${OPENCOLORIO_LIBRARIES})
set(OPENCOLORIO_LIBPATH) # TODO, remove and reference the absolute path everywhere
set(OPENCOLORIO_DEFINITIONS)
if(NOT OPENCOLORIO_FOUND)
set(WITH_OPENCOLORIO OFF)
message(STATUS "OpenColorIO not found")
endif()
endif()
if(WITH_CYCLES AND WITH_CYCLES_EMBREE)
find_package(Embree 3.8.0 REQUIRED)
endif()
if(WITH_OPENIMAGEDENOISE)
find_package_wrapper(OpenImageDenoise)
if(NOT OPENIMAGEDENOISE_FOUND)
set(WITH_OPENIMAGEDENOISE OFF)
message(STATUS "OpenImageDenoise not found")
endif()
endif()
if(WITH_LLVM)
if(EXISTS ${LIBDIR})
set(LLVM_STATIC ON)
endif()
find_package_wrapper(LLVM)
if(WITH_CLANG)
find_package_wrapper(Clang)
endif()
# Symbol conflicts with same UTF library used by OpenCollada
if(EXISTS ${LIBDIR})
if(WITH_OPENCOLLADA AND (${LLVM_VERSION} VERSION_LESS "4.0.0"))
list(REMOVE_ITEM OPENCOLLADA_LIBRARIES ${OPENCOLLADA_UTF_LIBRARY})
endif()
endif()
if(NOT LLVM_FOUND)
set(WITH_LLVM OFF)
set(WITH_CLANG OFF)
message(STATUS "LLVM not found")
else()
if(NOT CLANG_FOUND)
set(WITH_CLANG OFF)
message(STATUS "Clang not found")
endif()
endif()
endif()
if(WITH_OPENSUBDIV)
find_package_wrapper(OpenSubdiv)
set(OPENSUBDIV_LIBRARIES ${OPENSUBDIV_LIBRARIES})
set(OPENSUBDIV_LIBPATH) # TODO, remove and reference the absolute path everywhere
if(NOT OPENSUBDIV_FOUND)
set(WITH_OPENSUBDIV OFF)
message(STATUS "OpenSubdiv not found")
endif()
endif()
if(WITH_TBB)
find_package_wrapper(TBB)
if(NOT TBB_FOUND)
message(WARNING "TBB not found, disabling WITH_TBB")
set(WITH_TBB OFF)
endif()
endif()
if(WITH_XR_OPENXR)
find_package(XR_OpenXR_SDK)
if(NOT XR_OPENXR_SDK_FOUND)
message(WARNING "OpenXR-SDK not found, disabling WITH_XR_OPENXR")
set(WITH_XR_OPENXR OFF)
endif()
endif()
if(WITH_GMP)
find_package_wrapper(GMP)
if(NOT GMP_FOUND)
message(WARNING "GMP not found, disabling WITH_GMP")
set(WITH_GMP OFF)
endif()
endif()
if(WITH_POTRACE)
find_package_wrapper(Potrace)
if(NOT POTRACE_FOUND)
message(WARNING "potrace not found, disabling WITH_POTRACE")
set(WITH_POTRACE OFF)
endif()
endif()
if(WITH_HARU)
find_package_wrapper(Haru)
if(NOT HARU_FOUND)
message(WARNING "Haru not found, disabling WITH_HARU")
set(WITH_HARU OFF)
endif()
endif()
if(EXISTS ${LIBDIR})
without_system_libs_end()
endif()
# ----------------------------------------------------------------------------
# Build and Link Flags
# OpenSuse needs lutil, ArchLinux not, for now keep, can avoid by using --as-needed
if(HAIKU)
list(APPEND PLATFORM_LINKLIBS -lnetwork)
else()
list(APPEND PLATFORM_LINKLIBS -lutil -lc -lm)
endif()
find_package(Threads REQUIRED)
list(APPEND PLATFORM_LINKLIBS ${CMAKE_THREAD_LIBS_INIT})
# used by other platforms
set(PTHREADS_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
if(CMAKE_DL_LIBS)
list(APPEND PLATFORM_LINKLIBS ${CMAKE_DL_LIBS})
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
if(NOT WITH_PYTHON_MODULE)
# binreloc is linux only
set(BINRELOC_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/extern/binreloc/include)
set(WITH_BINRELOC ON)
endif()
endif()
# lfs on glibc, all compilers should use
add_definitions(-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE)
# ----------------------------------------------------------------------------
# System Libraries
#
# Keep last, so indirectly linked libraries don't override our own pre-compiled libs.
if(EXISTS ${LIBDIR})
# Clear the prefix path as it causes the `LIBDIR` to override system locations.
unset(CMAKE_PREFIX_PATH)
# Since the pre-compiled `LIBDIR` directories have been handled, don't prefer static libraries.
set(WITH_STATIC_LIBS ${WITH_STATIC_LIBS_INIT})
endif()
if(WITH_SYSTEM_FREETYPE)
find_package_wrapper(Freetype)
if(NOT FREETYPE_FOUND)
message(FATAL_ERROR "Failed finding system FreeType version!")
endif()
endif()
if(WITH_LZO AND WITH_SYSTEM_LZO)
find_package_wrapper(LZO)
if(NOT LZO_FOUND)
message(FATAL_ERROR "Failed finding system LZO version!")
endif()
endif()
if(WITH_SYSTEM_EIGEN3)
find_package_wrapper(Eigen3)
if(NOT EIGEN3_FOUND)
message(FATAL_ERROR "Failed finding system Eigen3 version!")
endif()
endif()
# Jack is intended to use the system library.
if(WITH_JACK)
find_package_wrapper(Jack)
if(NOT JACK_FOUND)
set(WITH_JACK OFF)
endif()
endif()
# Pulse is intended to use the system library.
if(WITH_PULSEAUDIO)
find_package_wrapper(Pulse)
if(NOT PULSE_FOUND)
set(WITH_PULSEAUDIO OFF)
endif()
endif()
# Audio IO
if(WITH_SYSTEM_AUDASPACE)
find_package_wrapper(Audaspace)
if(NOT AUDASPACE_FOUND OR NOT AUDASPACE_C_FOUND)
message(FATAL_ERROR "Audaspace external library not found!")
endif()
endif()
if(WITH_GHOST_WAYLAND)
find_package(PkgConfig)
pkg_check_modules(wayland-client REQUIRED wayland-client>=1.12)
pkg_check_modules(wayland-egl REQUIRED wayland-egl)
pkg_check_modules(wayland-scanner REQUIRED wayland-scanner)
pkg_check_modules(xkbcommon REQUIRED xkbcommon)
pkg_check_modules(wayland-cursor REQUIRED wayland-cursor)
if(WITH_GHOST_WAYLAND_DBUS)
pkg_check_modules(dbus REQUIRED dbus-1)
endif()
if(WITH_GHOST_WAYLAND_LIBDECOR)
pkg_check_modules(libdecor REQUIRED libdecor-0>=0.1)
endif()
list(APPEND PLATFORM_LINKLIBS
${wayland-client_LINK_LIBRARIES}
${wayland-egl_LINK_LIBRARIES}
${xkbcommon_LINK_LIBRARIES}
${wayland-cursor_LINK_LIBRARIES}
)
if(WITH_GHOST_WAYLAND_DBUS)
list(APPEND PLATFORM_LINKLIBS
${dbus_LINK_LIBRARIES}
)
add_definitions(-DWITH_GHOST_WAYLAND_DBUS)
endif()
if(WITH_GHOST_WAYLAND_LIBDECOR)
list(APPEND PLATFORM_LINKLIBS
${libdecor_LIBRARIES}
)
add_definitions(-DWITH_GHOST_WAYLAND_LIBDECOR)
endif()
endif()
if(WITH_GHOST_X11)
find_package(X11 REQUIRED)
find_path(X11_XF86keysym_INCLUDE_PATH X11/XF86keysym.h ${X11_INC_SEARCH_PATH})
mark_as_advanced(X11_XF86keysym_INCLUDE_PATH)
list(APPEND PLATFORM_LINKLIBS ${X11_X11_LIB})
if(WITH_X11_XINPUT)
if(X11_Xinput_LIB)
list(APPEND PLATFORM_LINKLIBS ${X11_Xinput_LIB})
else()
message(FATAL_ERROR "LibXi not found. Disable WITH_X11_XINPUT if you
want to build without tablet support")
endif()
endif()
if(WITH_X11_XF86VMODE)
# XXX, why doesn't cmake make this available?
find_library(X11_Xxf86vmode_LIB Xxf86vm ${X11_LIB_SEARCH_PATH})
mark_as_advanced(X11_Xxf86vmode_LIB)
if(X11_Xxf86vmode_LIB)
list(APPEND PLATFORM_LINKLIBS ${X11_Xxf86vmode_LIB})
else()
message(FATAL_ERROR "libXxf86vm not found. Disable WITH_X11_XF86VMODE if you
want to build without")
endif()
endif()
if(WITH_X11_XFIXES)
if(X11_Xfixes_LIB)
list(APPEND PLATFORM_LINKLIBS ${X11_Xfixes_LIB})
else()
message(FATAL_ERROR "libXfixes not found. Disable WITH_X11_XFIXES if you
want to build without")
endif()
endif()
if(WITH_X11_ALPHA)
find_library(X11_Xrender_LIB Xrender ${X11_LIB_SEARCH_PATH})
mark_as_advanced(X11_Xrender_LIB)
if(X11_Xrender_LIB)
list(APPEND PLATFORM_LINKLIBS ${X11_Xrender_LIB})
else()
message(FATAL_ERROR "libXrender not found. Disable WITH_X11_ALPHA if you
want to build without")
endif()
endif()
endif()
# ----------------------------------------------------------------------------
# Compilers
# Only set the linker once.
set(_IS_LINKER_DEFAULT ON)
# GNU Compiler
if(CMAKE_COMPILER_IS_GNUCC)
# ffp-contract=off:
# Automatically turned on when building with "-march=native". This is
# explicitly turned off here as it will make floating point math give a bit
# different results. This will lead to automated test failures. So disable
# this until we support it. Seems to default to off in clang and the intel
# compiler.
set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off")
# `maybe-uninitialized` is unreliable in release builds, but fine in debug builds.
set(GCC_EXTRA_FLAGS_RELEASE "-Wno-maybe-uninitialized")
set(CMAKE_C_FLAGS_RELEASE "${GCC_EXTRA_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "${GCC_EXTRA_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELWITHDEBINFO}")
set(CMAKE_CXX_FLAGS_RELEASE "${GCC_EXTRA_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}")
string(PREPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO "${GCC_EXTRA_FLAGS_RELEASE} ")
unset(GCC_EXTRA_FLAGS_RELEASE)
# NOTE(@campbellbarton): Eventually mold will be able to use `-fuse-ld=mold`,
# however at the moment this only works for GCC 12.1+ (unreleased at time of writing).
# So a workaround is used here "-B" which points to another path to find system commands
# such as `ld`.
if(WITH_LINKER_MOLD AND _IS_LINKER_DEFAULT)
find_program(MOLD_BIN "mold")
mark_as_advanced(MOLD_BIN)
if(NOT MOLD_BIN)
message(STATUS "The \"mold\" binary could not be found, using system linker.")
set(WITH_LINKER_MOLD OFF)
else()
# By default mold installs the binary to:
# - `{PREFIX}/bin/mold` as well as a symbolic-link in...
# - `{PREFIX}/lib/mold/ld`.
# (where `PREFIX` is typically `/usr/`).
#
# This block of code finds `{PREFIX}/lib/mold` from the `mold` binary.
# Other methods of searching for the path could also be made to work,
# we could even make our own directory and symbolic-link, however it's more
# convenient to use the one provided by mold.
#
# Use the binary path to "mold", to find the common prefix which contains "lib/mold".
# The parent directory: e.g. `/usr/bin/mold` -> `/usr/bin/`.
get_filename_component(MOLD_PREFIX "${MOLD_BIN}" DIRECTORY)
# The common prefix path: e.g. `/usr/bin/` -> `/usr/` to use as a hint.
get_filename_component(MOLD_PREFIX "${MOLD_PREFIX}" DIRECTORY)
# Find `{PREFIX}/lib/mold/ld`, store the directory component (without the `ld`).
# Then pass `-B {PREFIX}/lib/mold` to GCC so the `ld` located there overrides the default.
find_path(
MOLD_BIN_DIR "ld"
HINTS "${MOLD_PREFIX}"
# The default path is `libexec`, Arch Linux for e.g.
# replaces this with `lib` so check both.
PATH_SUFFIXES "libexec/mold" "lib/mold" "lib64/mold"
NO_DEFAULT_PATH
NO_CACHE
)
if(NOT MOLD_BIN_DIR)
message(STATUS
"The mold linker could not find the directory containing the linker command "
"(typically "
"\"${MOLD_PREFIX}/libexec/mold/ld\") or "
"\"${MOLD_PREFIX}/lib/mold/ld\") using system linker.")
set(WITH_LINKER_MOLD OFF)
endif()
unset(MOLD_PREFIX)
endif()
if(WITH_LINKER_MOLD)
# GCC will search for `ld` in this directory first.
string(APPEND CMAKE_EXE_LINKER_FLAGS " -B \"${MOLD_BIN_DIR}\"")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " -B \"${MOLD_BIN_DIR}\"")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " -B \"${MOLD_BIN_DIR}\"")
set(_IS_LINKER_DEFAULT OFF)
endif()
unset(MOLD_BIN)
unset(MOLD_BIN_DIR)
endif()
if(WITH_LINKER_GOLD AND _IS_LINKER_DEFAULT)
execute_process(
COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version
ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if("${LD_VERSION}" MATCHES "GNU gold")
string(APPEND CMAKE_EXE_LINKER_FLAGS " -fuse-ld=gold")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " -fuse-ld=gold")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " -fuse-ld=gold")
set(_IS_LINKER_DEFAULT OFF)
else()
message(STATUS "GNU gold linker isn't available, using the default system linker.")
endif()
unset(LD_VERSION)
endif()
if(WITH_LINKER_LLD AND _IS_LINKER_DEFAULT)
execute_process(
COMMAND ${CMAKE_C_COMPILER} -fuse-ld=lld -Wl,--version
ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if("${LD_VERSION}" MATCHES "LLD")
string(APPEND CMAKE_EXE_LINKER_FLAGS " -fuse-ld=lld")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " -fuse-ld=lld")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " -fuse-ld=lld")
set(_IS_LINKER_DEFAULT OFF)
else()
message(STATUS "LLD linker isn't available, using the default system linker.")
endif()
unset(LD_VERSION)
endif()
# CLang is the same as GCC for now.
elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing")
if(WITH_LINKER_MOLD AND _IS_LINKER_DEFAULT)
find_program(MOLD_BIN "mold")
mark_as_advanced(MOLD_BIN)
if(NOT MOLD_BIN)
message(STATUS "The \"mold\" binary could not be found, using system linker.")
set(WITH_LINKER_MOLD OFF)
else()
if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0)
string(APPEND CMAKE_EXE_LINKER_FLAGS " --ld-path=\"${MOLD_BIN}\"")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " --ld-path=\"${MOLD_BIN}\"")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " --ld-path=\"${MOLD_BIN}\"")
else()
string(APPEND CMAKE_EXE_LINKER_FLAGS " -fuse-ld=\"${MOLD_BIN}\"")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " -fuse-ld=\"${MOLD_BIN}\"")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " -fuse-ld=\"${MOLD_BIN}\"")
endif()
set(_IS_LINKER_DEFAULT OFF)
endif()
unset(MOLD_BIN)
endif()
# Intel C++ Compiler
elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
# think these next two are broken
find_program(XIAR xiar)
if(XIAR)
set(CMAKE_AR "${XIAR}")
endif()
mark_as_advanced(XIAR)
find_program(XILD xild)
if(XILD)
set(CMAKE_LINKER "${XILD}")
endif()
mark_as_advanced(XILD)
string(APPEND CMAKE_C_FLAGS " -fp-model precise -prec_div -parallel")
string(APPEND CMAKE_CXX_FLAGS " -fp-model precise -prec_div -parallel")
# string(APPEND PLATFORM_CFLAGS " -diag-enable sc3")
set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing")
string(APPEND PLATFORM_LINKFLAGS " -static-intel")
endif()
unset(_IS_LINKER_DEFAULT)
# Avoid conflicts with Mesa llvmpipe, Luxrender, and other plug-ins that may
# use the same libraries as Blender with a different version or build options.
set(PLATFORM_LINKFLAGS
"${PLATFORM_LINKFLAGS} -Wl,--version-script='${CMAKE_SOURCE_DIR}/source/creator/blender.map'"
)
# Don't use position independent executable for portable install since file
# browsers can't properly detect blender as an executable then. Still enabled
# for non-portable installs as typically used by Linux distributions.
if(WITH_INSTALL_PORTABLE)
string(APPEND CMAKE_EXE_LINKER_FLAGS " -no-pie")
endif()
if(WITH_COMPILER_CCACHE)
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM)
# Makefiles and ninja
set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "" FORCE)
set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "" FORCE)
else()
message(WARNING "Ccache NOT found, disabling WITH_COMPILER_CCACHE")
set(WITH_COMPILER_CCACHE OFF)
endif()
endif()
# On some platforms certain atomic operations are not possible with assembly and/or intrinsics and
# they are emulated in software with locks. For example, on armel there is no intrinsics to grant
# 64 bit atomic operations and STL library uses libatomic to offload software emulation of atomics
# to.
# This function will check whether libatomic is required and if so will configure linker flags.
# If atomic operations are possible without libatomic then linker flags are left as-is.
function(CONFIGURE_ATOMIC_LIB_IF_NEEDED)
# Source which is used to enforce situation when software emulation of atomics is required.
# Assume that using 64bit integer gives a definitive answer (as in, if 64bit atomic operations
# are possible using assembly/intrinsics 8, 16, and 32 bit operations will also be possible.
set(_source
"#include <atomic>
#include <cstdint>
int main(int argc, char **argv) {
std::atomic<uint64_t> uint64; uint64++;
return 0;
}")
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("${_source}" ATOMIC_OPS_WITHOUT_LIBATOMIC)
if(NOT ATOMIC_OPS_WITHOUT_LIBATOMIC)
# Compilation of the test program has failed.
# Try it again with -latomic to see if this is what is needed, or whether something else is
# going on.
set(CMAKE_REQUIRED_LIBRARIES atomic)
check_cxx_source_compiles("${_source}" ATOMIC_OPS_WITH_LIBATOMIC)
if(ATOMIC_OPS_WITH_LIBATOMIC)
set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -latomic" PARENT_SCOPE)
else()
# Atomic operations are required part of Blender and it is not possible to process forward.
# We expect that either standard library or libatomic will make atomics to work. If both
# cases has failed something fishy o na bigger scope is going on.
message(FATAL_ERROR "Failed to detect required configuration for atomic operations")
endif()
endif()
endfunction()
CONFIGURE_ATOMIC_LIB_IF_NEEDED()
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