fix mac build (#1150)

Signed-off-by: xianliang <xianliang.li@zilliz.com>

Author: foxspy

cmake/libs/libfaiss.cmake

@@ -77,6 +77,12 @@ if(__AARCH64)
     message(STATUS "SVE for ARMv8: Not Found")
   endif()
 
+  if (APPLE)
+    set(HAS_ARMV9_SVE FALSE)
+    set(HAS_ARMV8_SVE FALSE)
+    message(STATUS "Disable SVE for Apple")
+  endif()
+
   if (HAS_ARMV9_SVE)
     foreach(SVE_FILE ${UTILS_SVE_SRC})
       set_source_files_properties(${SVE_FILE} PROPERTIES COMPILE_OPTIONS "-march=armv9-a+sve")

src/simd/hook.cc

@@ -35,7 +35,7 @@
 #include "distances_powerpc.h"
 #endif
 
-#if defined(__aarch64__)
+#if defined(__aarch64__) && !defined(__APPLE__)
 #include <asm/hwcap.h>
 #include <sys/auxv.h>
 #endif
@@ -132,12 +132,19 @@ cpu_support_f16c() {
 #endif
 
 #if defined(__aarch64__)
+#if defined(__APPLE__)
+bool
+supports_sve() {
+    return false;
+}
+#else
 bool
 supports_sve() {
     unsigned long hwcap = getauxval(AT_HWCAP);
     return (hwcap & HWCAP_SVE) != 0;
 }
 #endif
+#endif
 
 static std::mutex patch_bf16_mutex;
 

thirdparty/faiss/faiss/impl/mapped_io.cpp

@@ -8,7 +8,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
 
 #include <fcntl.h>
 #include <sys/mman.h>
@@ -30,7 +30,7 @@
 
 namespace faiss {
 
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
 
 struct MmappedFileMappingOwner::PImpl {
     void* ptr = nullptr;