f9590c8eaa
The specific goal of this change is to get rid of separate code paths for older and newer Xcode versions. The version 8.2 is picked since it's the latest version which runs on macOS 10.11 (which is our current deployment target). If that turns out too new for some reason the alternative would be to require Xcode version 5.
105 lines
4.7 KiB
CMake
105 lines
4.7 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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set(CMAKE_OSX_ARCHITECTURES x86_64 CACHE STRING
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"Choose the architecture you want to build Blender for: i386, x86_64 or ppc"
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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 ${XCODE_BUNDLE}")
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# Older Xcode versions had different approach to the directory hiearchy.
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# Require newer Xcode which is also have better chances of being able to compile with the
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# required deployment target.
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#
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# NOTE: Xcode version 8.2 is the latest one which runs on macOS 10.11.
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if(${XCODE_VERSION} VERSION_LESS 8.2)
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message(FATAL_ERROR "Only Xcode version 8.2 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: " ${OSX_SYSROOT_PREFIX})
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set(OSX_DEVELOPER_PREFIX /Developer/SDKs/MacOSX${OSX_SYSTEM}.sdk) # use guaranteed existing sdk
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set(CMAKE_OSX_SYSROOT ${OSX_SYSROOT_PREFIX}/${OSX_DEVELOPER_PREFIX} CACHE PATH "" FORCE)
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if(${CMAKE_GENERATOR} MATCHES "Xcode")
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# to silence sdk not found warning, just overrides CMAKE_OSX_SYSROOT
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set(CMAKE_XCODE_ATTRIBUTE_SDKROOT macosx${OSX_SYSTEM})
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endif()
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# 10.11 is our min. target, if you use higher sdk, weak linking happens
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if(CMAKE_OSX_DEPLOYMENT_TARGET)
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if(${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_LESS 10.11)
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message(STATUS "Setting deployment target to 10.11, lower versions are not supported")
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set(CMAKE_OSX_DEPLOYMENT_TARGET "10.11" CACHE STRING "" FORCE)
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endif()
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else()
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set(CMAKE_OSX_DEPLOYMENT_TARGET "10.11" 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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