clean Cmake find module for rocksDB

#

#     find_package(RocksDB)

#

# Variables used by this module, they can change the default behaviour and need

# to be set before calling find_package:

#

#  ROCKSDB_ROOT_DIR          Set this variable to the root installation of

#                            RocksDB if the module has problems finding the

#                            proper installation path.

#

# Variables defined by this module:

#

#  ROCKSDB_FOUND               System has RocksDB library/headers.

#  ROCKSDB_LIBRARIES           The RocksDB library.

#  ROCKSDB_INCLUDE_DIRS        The location of RocksDB headers.

find_path(ROCKSDB_DIR

        HINTS

        /usr

        /usr/local

        /usr/local/adafs/

        PATH_SUFFIXES rocksdb

        )

find_path(ROCKSDB_INCLUDE_DIR rocksdb/db.h

        HINTS

        ${ADAFS_DEPS_INSTALL}

        ${ROCKSDB_DIR}

        /usr

        /usr/local

        /usr/local/adafs

        /opt/

        PATH_SUFFIXES include

        PATH_SUFFIXES include/rocksdb

find_library(ROCKSDB_LIBRARY

    NAMES rocksdb

)

find_library(ROCKSDB_LIBRARY rocksdb

        HINTS

        ${ADAFS_DEPS_INSTALL}

        ${ROCKSDB_DIR}

        $ENV{HOME}/opt

        /usr

        /usr/local

        /usr/local/adafs

        /opt/

        PATH_SUFFIXES lib

        PATH_SUFFIXES lib/rocksdb

find_path(ROCKSDB_INCLUDE_DIR

    NAMES rocksdb/db.h

)

set(ROCKSDB_INCLUDE_DIRS ${ROCKSDB_INCLUDE_DIR})

set(ROCKSDB_LIBRARIES ${ROCKSDB_LIBRARY})

set(ROCKSDB_INCLUDE_DIRS ${ROCKSDB_INCLUDE_DIR})

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args(RocksDB DEFAULT_MSG

)

mark_as_advanced(

        ROCKSDB_DIR

    ROCKSDB_LIBRARY

    ROCKSDB_INCLUDE_DIR

)

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