fix: don't compile protoc by AVX512

Author: JalinWang

thirdparty/protobuf/CMakeLists.txt

@@ -3,7 +3,23 @@ set(protobuf_WITH_ZLIB ON CACHE BOOL "Disable zlib support in protobuf" FORCE)
 
 set(_SAVED_CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${EXTERNAL_LIB_DIR})
+
+# protoc runs on the build machine at configure/build time, so it must not
+# use ISA extensions the host CPU may lack (e.g. AVX-512 on CI runners).
+if (MSVC)
+    set(_SAVED_C_FLAGS "${CMAKE_C_FLAGS}")
+    set(_SAVED_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+    string(REGEX REPLACE "(/arch|/ARCH):[A-Za-z0-9]+" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+    string(REGEX REPLACE "(/arch|/ARCH):[A-Za-z0-9]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+endif ()
+
 add_subdirectory(protobuf-3.21.12/cmake protobuf-3.21.12)
+
+if (MSVC)
+    set(CMAKE_C_FLAGS "${_SAVED_C_FLAGS}")
+    set(CMAKE_CXX_FLAGS "${_SAVED_CXX_FLAGS}")
+endif ()
+
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${_SAVED_CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
 unset(_SAVED_CMAKE_ARCHIVE_OUTPUT_DIRECTORY)