cmake HAVE_DECL_SHM_HUGETLB examples

alibaba/AliSQL cmake/os/Linux.cmake :44 

CHECK_SYMBOL_EXISTS(SHM_HUGETLB sys/shm.h  HAVE_DECL_SHM_HUGETLB)

arkdb/arkproxy cmake/os/Linux.cmake :46 

CHECK_SYMBOL_EXISTS(SHM_HUGETLB sys/shm.h  HAVE_DECL_SHM_HUGETLB)

alibaba/AliSQLBackup cmake/os/Linux.cmake :44 

CHECK_SYMBOL_EXISTS(SHM_HUGETLB sys/shm.h  HAVE_DECL_SHM_HUGETLB)