make cross compilation possible on macOS with CMake

Sync CMAKE_SYSTEM_PROCESSOR to CMAKE_OSX_ARCHITECTURES. This doesn't
support universal binaries, but does allow cross-compiling for a single
architecture by setting -DCMAKE_OSX_ARCHITECTURES=(arm64|x86_64)
This commit is contained in:
Brent Cook 2023-07-04 12:36:57 +03:00 committed by Steveice10
parent 2e09973d32
commit 83fdd2ee99

View File

@ -299,6 +299,15 @@ if(HAVE_NETINET_IP_H)
add_definitions(-DHAVE_NETINET_IP_H) add_definitions(-DHAVE_NETINET_IP_H)
endif() endif()
# This isn't ready for universal binaries yet, since we do conditional
# compilation based on the architecture, but this makes cross compiling for a
# single architecture work on macOS at least.
#
# Don't set CMAKE_OSX_ARCHITECTURES to more than a single value for now.
if(APPLE)
set(CMAKE_SYSTEM_PROCESSOR "${CMAKE_OSX_ARCHITECTURES}")
endif()
if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(aarch64|arm64)") if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(aarch64|arm64)")
set(HOST_AARCH64 true) set(HOST_AARCH64 true)
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm") elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm")