9715ad5aca
Enabling all `make deps` dependencies with the exception of Embree and OIDN. After that, Blender can be compiled on an Apple Silicon Mac just like on any Intel based Mac. There are still compiler warnings that need to be investigated and there are probably a couple of bug still to be discovered and to be fixed. Most patches to the dependencies are simple and are about disabling SSE and setting the proper architecture to compiile for. Notable exception is Python, where I back ported a yet to be accepted PR for upstream Python: https://github.com/python/cpython/pull/21249 Cross compiling or buliding a Universal Binary is not supported yet. The minimum macOS target version for x86_64 remains at 10.13, the target for arm64 is 11.00. Differential Revision: https://developer.blender.org/D8236
157 lines
6.6 KiB
CMake
157 lines
6.6 KiB
CMake
# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# The Original Code is Copyright (C) 2016, Blender Foundation
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# All rights reserved.
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# ***** END GPL LICENSE BLOCK *****
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# Xcode and system configuration for Apple.
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if(NOT CMAKE_OSX_ARCHITECTURES)
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execute_process(COMMAND uname -m OUTPUT_VARIABLE ARCHITECTURE OUTPUT_STRIP_TRAILING_WHITESPACE)
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message(STATUS "Detected native architecture ${ARCHITECTURE}.")
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set(CMAKE_OSX_ARCHITECTURES ${ARCHITECTURE} CACHE STRING
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"Choose the architecture you want to build Blender for: arm64 or x86_64"
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FORCE)
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endif()
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if(NOT DEFINED OSX_SYSTEM)
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execute_process(
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COMMAND xcodebuild -version -sdk macosx SDKVersion
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OUTPUT_VARIABLE OSX_SYSTEM
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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# workaround for incorrect cmake xcode lookup for developer previews - XCODE_VERSION does not
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# take xcode-select path into account but would always look into /Applications/Xcode.app
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# while dev versions are named Xcode<version>-DP<preview_number>
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execute_process(
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COMMAND xcode-select --print-path
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OUTPUT_VARIABLE XCODE_CHECK OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REPLACE "/Contents/Developer" "" XCODE_BUNDLE ${XCODE_CHECK}) # truncate to bundlepath in any case
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if(NOT ${CMAKE_GENERATOR} MATCHES "Xcode")
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# Unix makefile generator does not fill XCODE_VERSION var, so we get it with a command.
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# Note that `xcodebuild -version` gives output in two lines: first line will include
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# Xcode version, second one will include build number. We are only interested in the
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# former one. Here is an example of the output:
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# Xcode 11.4
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# Build version 11E146
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# The expected XCODE_VERSION in this case is 11.4.
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execute_process(COMMAND xcodebuild -version OUTPUT_VARIABLE XCODE_VERS_BUILD_NR)
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# Convert output to a single line by replacling newlines with spaces.
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# This is needed because regex replace can not operate through the newline character
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# and applies substitutions for each individual lines.
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string(REPLACE "\n" " " XCODE_VERS_BUILD_NR_SINGLE_LINE "${XCODE_VERS_BUILD_NR}")
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string(REGEX REPLACE "(.*)Xcode ([0-9\\.]+).*" "\\2" XCODE_VERSION "${XCODE_VERS_BUILD_NR_SINGLE_LINE}")
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unset(XCODE_VERS_BUILD_NR)
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unset(XCODE_VERS_BUILD_NR_SINGLE_LINE)
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endif()
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message(STATUS "Detected OS X ${OSX_SYSTEM} and Xcode ${XCODE_VERSION} at ${XCODE_BUNDLE}")
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# Require a relatively recent Xcode version.
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if(${XCODE_VERSION} VERSION_LESS 10.0)
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message(FATAL_ERROR "Only Xcode version 10.0 and newer is supported")
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endif()
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# note: xcode-select path could be ambiguous,
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# cause /Applications/Xcode.app/Contents/Developer or /Applications/Xcode.app would be allowed
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# so i use a selfcomposed bundlepath here
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set(OSX_SYSROOT_PREFIX ${XCODE_BUNDLE}/Contents/Developer/Platforms/MacOSX.platform)
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message(STATUS "OSX_SYSROOT_PREFIX: " ${OSX_SYSROOT_PREFIX})
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# Collect list of OSX system versions which will be used to detect path to corresponding SDK.
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# Start with macOS SDK version reported by xcodebuild and include possible extra ones.
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#
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# The reason for need of extra ones is because it's possible that xcodebuild will report
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# SDK version in the full manner (aka major.minor.patch), but the actual path will only
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# include major.minor.
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#
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# This happens, for example, on macOS Catalina 10.15.4 and Xcode 11.4: xcodebuild on this
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# system outputs "10.15.4", but the actual SDK path is MacOSX10.15.sdk.
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#
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# This should be safe from picking wrong SDK version because (a) xcodebuild reports full semantic
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# SDK version, so such SDK does exist on the system. And if it doesn't exist with full version
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# in the path, what SDK is in the major.minor folder then.
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set(OSX_SDK_TEST_VERSIONS ${OSX_SYSTEM})
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if(OSX_SYSTEM MATCHES "([0-9]+)\\.([0-9]+)\\.([0-9]+)")
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string(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1.\\2" OSX_SYSTEM_NO_PATCH "${OSX_SYSTEM}")
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list(APPEND OSX_SDK_TEST_VERSIONS ${OSX_SYSTEM_NO_PATCH})
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unset(OSX_SYSTEM_NO_PATCH)
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endif()
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# Loop through all possible versions and pick the first one which resolves to a valid SDK path.
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set(OSX_SDK_PATH)
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set(OSX_SDK_FOUND FALSE)
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set(OSX_SDK_PREFIX ${OSX_SYSROOT_PREFIX}/Developer/SDKs)
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set(OSX_SDKROOT)
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foreach(OSX_SDK_VERSION ${OSX_SDK_TEST_VERSIONS})
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set(CURRENT_OSX_SDK_PATH "${OSX_SDK_PREFIX}/MacOSX${OSX_SDK_VERSION}.sdk")
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if(EXISTS ${CURRENT_OSX_SDK_PATH})
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set(OSX_SDK_PATH "${CURRENT_OSX_SDK_PATH}")
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set(OSX_SDKROOT macosx${OSX_SDK_VERSION})
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set(OSX_SDK_FOUND TRUE)
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break()
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endif()
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endforeach()
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unset(OSX_SDK_PREFIX)
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unset(OSX_SDK_TEST_VERSIONS)
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if(NOT OSX_SDK_FOUND)
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message(FATAL_ERROR "Unable to find SDK for macOS version ${OSX_SYSTEM}")
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endif()
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message(STATUS "Detected OSX_SYSROOT: ${OSX_SDK_PATH}")
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set(CMAKE_OSX_SYSROOT ${OSX_SDK_PATH} CACHE PATH "" FORCE)
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unset(OSX_SDK_PATH)
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unset(OSX_SDK_FOUND)
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if(${CMAKE_GENERATOR} MATCHES "Xcode")
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# to silence sdk not found warning, just overrides CMAKE_OSX_SYSROOT
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set(CMAKE_XCODE_ATTRIBUTE_SDKROOT ${OSX_SDKROOT})
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endif()
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unset(OSX_SDKROOT)
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# 10.13 is our min. target, if you use higher sdk, weak linking happens
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if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
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set(OSX_MIN_DEPLOYMENT_TARGET 11.00)
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else()
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set(OSX_MIN_DEPLOYMENT_TARGET 10.13)
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endif()
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if(CMAKE_OSX_DEPLOYMENT_TARGET)
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if(${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_LESS ${OSX_MIN_DEPLOYMENT_TARGET})
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message(STATUS "Setting deployment target to ${OSX_MIN_DEPLOYMENT_TARGET}, lower versions are not supported")
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set(CMAKE_OSX_DEPLOYMENT_TARGET "${OSX_MIN_DEPLOYMENT_TARGET}" CACHE STRING "" FORCE)
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endif()
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else()
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set(CMAKE_OSX_DEPLOYMENT_TARGET "${OSX_MIN_DEPLOYMENT_TARGET}" CACHE STRING "" FORCE)
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endif()
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if(NOT ${CMAKE_GENERATOR} MATCHES "Xcode")
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# Force CMAKE_OSX_DEPLOYMENT_TARGET for makefiles, will not work else (CMake bug?)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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add_definitions("-DMACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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endif()
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