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CMake: Remove support of Xcode prior to 8.2

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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.
This commit is contained in:
Sergey Sharybin
2020-03-26 09:14:22 +01:00
parent c547d431eb
commit f9590c8eaa
1 changed files with 20 additions and 39 deletions
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59
build_files/cmake/platform/platform_apple_xcode.cmake
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@@ -41,30 +41,7 @@ execute_process(
OUTPUT_VARIABLE XCODE_CHECK OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE "/Contents/Developer" "" XCODE_BUNDLE ${XCODE_CHECK}) # truncate to bundlepath in any case
if(${CMAKE_GENERATOR} MATCHES "Xcode")
# earlier xcode has no bundled developer dir, no sense in getting xcode path from
if(${XCODE_VERSION} VERSION_GREATER 4.2)
# reduce to XCode name without dp extension
string(SUBSTRING "${XCODE_CHECK}" 14 6 DP_NAME)
if(${DP_NAME} MATCHES Xcode5)
set(XCODE_VERSION 5)
endif()
endif()
##### cmake incompatibility with xcode 4.3 and higher #####
if(${XCODE_VERSION} MATCHES '') # cmake fails due looking for xcode in the wrong path, thus will be empty var
message(FATAL_ERROR "Xcode 4.3 and higher must be used with cmake 2.8-8 or higher")
endif()
### end cmake incompatibility with xcode 4.3 and higher ###
if(${XCODE_VERSION} VERSION_EQUAL 4 OR ${XCODE_VERSION} VERSION_GREATER 4 AND ${XCODE_VERSION} VERSION_LESS 4.3)
# Xcode 4 defaults to the Apple LLVM Compiler.
# Override the default compiler selection because Blender only compiles with gcc up to xcode 4.2
set(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.llvmgcc42")
message(STATUS "Setting compiler to: " ${CMAKE_XCODE_ATTRIBUTE_GCC_VERSION})
endif()
else()
if(NOT ${CMAKE_GENERATOR} MATCHES "Xcode")
# Unix makefile generator does not fill XCODE_VERSION var, so we get it with a command.
# Note that `xcodebuild -version` gives output in two lines: first line will include
# Xcode version, second one will include build number. We are only interested in the
@@ -88,21 +65,25 @@ endif()
message(STATUS "Detected OS X ${OSX_SYSTEM} and Xcode ${XCODE_VERSION} at ${XCODE_BUNDLE}")
if(${XCODE_VERSION} VERSION_LESS 4.3)
# use guaranteed existing sdk
set(CMAKE_OSX_SYSROOT /Developer/SDKs/MacOSX${OSX_SYSTEM}.sdk CACHE PATH "" FORCE)
else()
# note: xcode-select path could be ambiguous,
# cause /Applications/Xcode.app/Contents/Developer or /Applications/Xcode.app would be allowed
# so i use a selfcomposed bundlepath here
set(OSX_SYSROOT_PREFIX ${XCODE_BUNDLE}/Contents/Developer/Platforms/MacOSX.platform)
message(STATUS "OSX_SYSROOT_PREFIX: " ${OSX_SYSROOT_PREFIX})
set(OSX_DEVELOPER_PREFIX /Developer/SDKs/MacOSX${OSX_SYSTEM}.sdk) # use guaranteed existing sdk
set(CMAKE_OSX_SYSROOT ${OSX_SYSROOT_PREFIX}/${OSX_DEVELOPER_PREFIX} CACHE PATH "" FORCE)
if(${CMAKE_GENERATOR} MATCHES "Xcode")
# to silence sdk not found warning, just overrides CMAKE_OSX_SYSROOT
set(CMAKE_XCODE_ATTRIBUTE_SDKROOT macosx${OSX_SYSTEM})
endif()
# Older Xcode versions had different approach to the directory hiearchy.
# Require newer Xcode which is also have better chances of being able to compile with the
# required deployment target.
#
# NOTE: Xcode version 8.2 is the latest one which runs on macOS 10.11.
if(${XCODE_VERSION} VERSION_LESS 8.2)
message(FATAL_ERROR "Only Xcode version 8.2 and newer is supported")
endif()
# note: xcode-select path could be ambiguous,
# cause /Applications/Xcode.app/Contents/Developer or /Applications/Xcode.app would be allowed
# so i use a selfcomposed bundlepath here
set(OSX_SYSROOT_PREFIX ${XCODE_BUNDLE}/Contents/Developer/Platforms/MacOSX.platform)
message(STATUS "OSX_SYSROOT_PREFIX: " ${OSX_SYSROOT_PREFIX})
set(OSX_DEVELOPER_PREFIX /Developer/SDKs/MacOSX${OSX_SYSTEM}.sdk) # use guaranteed existing sdk
set(CMAKE_OSX_SYSROOT ${OSX_SYSROOT_PREFIX}/${OSX_DEVELOPER_PREFIX} CACHE PATH "" FORCE)
if(${CMAKE_GENERATOR} MATCHES "Xcode")
# to silence sdk not found warning, just overrides CMAKE_OSX_SYSROOT
set(CMAKE_XCODE_ATTRIBUTE_SDKROOT macosx${OSX_SYSTEM})
endif()
# 10.11 is our min. target, if you use higher sdk, weak linking happens