-- Build src/arm/freebsd/init.c for FreeBSD/aarch64 builds.
-- cpuinfo has no FreeBSD backend for arm/aarch64 (only x86/freebsd exists),
-- so cpuinfo_initialize() has no implementation to call into on aarch64 and
-- libtorch_cpu.so fails to load with "Undefined symbol \"cpuinfo_isa\"".
-- Paired with the new src/arm/freebsd/init.c added below.

-- Upstreamed: https://github.com/pytorch/cpuinfo/pull/436

--- cpuinfo-with-freebsd-support/CMakeLists.txt.orig	2026-09-21 07:02:31 UTC
+++ cpuinfo-with-freebsd-support/CMakeLists.txt
@@ -211,6 +211,8 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
       ENDIF()
     ELSEIF(IS_APPLE_OS AND CPUINFO_TARGET_PROCESSOR MATCHES "arm64.*")
       LIST(APPEND CPUINFO_SRCS src/arm/mach/init.c)
+    ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+      LIST(APPEND CPUINFO_SRCS src/arm/freebsd/init.c)
     ENDIF()
     IF(CMAKE_SYSTEM_NAME STREQUAL "Android")
       LIST(APPEND CPUINFO_SRCS