cmake HAS_LOONGARCH64 examples

speedb-io/speedb CMakeLists.txt :295 

CHECK_C_COMPILER_FLAG("-march=loongarch64" HAS_LOONGARCH64)

speedb-io/speedb CMakeLists.txt :299 

endif(HAS_LOONGARCH64)

facebook/rocksdb CMakeLists.txt :268 

CHECK_C_COMPILER_FLAG("-march=loongarch64" HAS_LOONGARCH64)

facebook/rocksdb CMakeLists.txt :272 

endif(HAS_LOONGARCH64)

ververica/ForSt CMakeLists.txt :249 

CHECK_C_COMPILER_FLAG("-march=loongarch64" HAS_LOONGARCH64)

ververica/ForSt CMakeLists.txt :253 

endif(HAS_LOONGARCH64)

topling/toplingdb CMakeLists.txt :267 

CHECK_C_COMPILER_FLAG("-march=loongarch64" HAS_LOONGARCH64)

topling/toplingdb CMakeLists.txt :271 

endif(HAS_LOONGARCH64)