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build: add macOS (Apple Silicon) build support

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macOS compiles the existing POSIX/Linux code paths (KYTY_PLATFORM_LINUX)
targeting x86_64 under Rosetta 2. Adds an APPLE branch to the build:
selects Apple's ld64 linker, unsets the Ninja response-file forcing (Apple
ar has no @file support), derives the target arch from CMAKE_OSX_ARCHITECTURES
for cpuinfo/ffmpeg, and re-signs the binary post-build with JIT entitlements
(required to execute written trampolines and Rosetta-translated guest code).

All changes are guarded by if(APPLE); Windows and Linux configuration is
unchanged.

(cherry picked from commit 13be13b7573b9a687cf87531a81e4497ed3de1d5)
This commit is contained in:
Abdullah K.
2026-07-23 04:32:24 +05:00
committed by nmzik
parent e42f6c3892
commit 7921269878
5 changed files with 65 additions and 9 deletions
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3rdparty/CMakeLists.txt
Vendored
+11 -1
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@@ -44,7 +44,17 @@ set(SPDLOG_NO_EXCEPTIONS ON CACHE BOOL "" FORCE)
add_subdirectory(spdlog EXCLUDE_FROM_ALL)
if (NOT TARGET FFmpeg::ffmpeg)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|ARM64)$")
# On macOS the target arch is driven by CMAKE_OSX_ARCHITECTURES, not the host
# CMAKE_SYSTEM_PROCESSOR (which reports arm64 even for an x86_64/Rosetta build).
if(APPLE AND CMAKE_OSX_ARCHITECTURES)
if(CMAKE_OSX_ARCHITECTURES MATCHES "^(x86_64)$")
set(ARCHITECTURE x86_64)
elseif(CMAKE_OSX_ARCHITECTURES MATCHES "^(arm64)$")
set(ARCHITECTURE arm64)
else()
set(ARCHITECTURE x86_64 arm64) # universal
endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|ARM64)$")
set(ARCHITECTURE arm64)
else()
set(ARCHITECTURE x86_64)