--- third_party/fbgemm/external/cpuinfo/CMakeLists.txt.orig	2026-11-04 16:29:16 UTC
+++ third_party/fbgemm/external/cpuinfo/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
