| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| # Tries to find Snappy headers and libraries. |
| # |
| # Usage of this module as follows: |
| # |
| # find_package(Snappy) |
| # |
| # Variables used by this module, they can change the default behaviour and need |
| # to be set before calling find_package: |
| # |
| # Snappy_HOME - When set, this path is inspected instead of standard library |
| # locations as the root of the Snappy installation. |
| # The environment variable SNAPPY_HOME overrides this variable. |
| # |
| # This module defines |
| # SNAPPY_INCLUDE_DIR, directory containing headers |
| # SNAPPY_LIBS, directory containing snappy libraries |
| # SNAPPY_STATIC_LIB, path to libsnappy.a |
| # SNAPPY_SHARED_LIB, path to libsnappy's shared library |
| # SNAPPY_FOUND, whether snappy has been found |
| |
| if( NOT "${SNAPPY_HOME}" STREQUAL "") |
| file( TO_CMAKE_PATH "${SNAPPY_HOME}" _native_path ) |
| list( APPEND _snappy_roots ${_native_path} ) |
| elseif ( Snappy_HOME ) |
| list( APPEND _snappy_roots ${Snappy_HOME} ) |
| endif() |
| |
| message(STATUS "SNAPPY_HOME: ${SNAPPY_HOME}") |
| find_path(SNAPPY_INCLUDE_DIR snappy.h HINTS |
| ${_snappy_roots} |
| NO_DEFAULT_PATH |
| PATH_SUFFIXES "include") |
| |
| find_library( SNAPPY_LIBRARIES NAMES snappy PATHS |
| ${_snappy_roots} |
| NO_DEFAULT_PATH |
| PATH_SUFFIXES "lib") |
| |
| if (SNAPPY_INCLUDE_DIR AND (PARQUET_MINIMAL_DEPENDENCY OR SNAPPY_LIBRARIES)) |
| set(SNAPPY_FOUND TRUE) |
| get_filename_component( SNAPPY_LIBS ${SNAPPY_LIBRARIES} PATH ) |
| set(SNAPPY_HEADER_NAME snappy.h) |
| set(SNAPPY_HEADER ${SNAPPY_INCLUDE_DIR}/${SNAPPY_HEADER_NAME}) |
| set(SNAPPY_LIB_NAME snappy) |
| set(SNAPPY_STATIC_LIB ${SNAPPY_LIBS}/${CMAKE_STATIC_LIBRARY_PREFIX}${SNAPPY_LIB_NAME}${SNAPPY_MSVC_STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}) |
| set(SNAPPY_SHARED_LIB ${SNAPPY_LIBS}/${CMAKE_SHARED_LIBRARY_PREFIX}${SNAPPY_LIB_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}) |
| else () |
| set(SNAPPY_FOUND FALSE) |
| endif () |
| |
| if (SNAPPY_FOUND) |
| if (NOT Snappy_FIND_QUIETLY) |
| if (PARQUET_MINIMAL_DEPENDENCY) |
| message(STATUS "Found the Snappy header: ${SNAPPY_HEADER}") |
| else () |
| message(STATUS "Found the Snappy library: ${SNAPPY_LIBRARIES}") |
| endif () |
| endif () |
| else () |
| if (NOT Snappy_FIND_QUIETLY) |
| set(SNAPPY_ERR_MSG "Could not find the Snappy library. Looked in ") |
| if ( _snappy_roots ) |
| set(SNAPPY_ERR_MSG "${SNAPPY_ERR_MSG} in ${_snappy_roots}.") |
| else () |
| set(SNAPPY_ERR_MSG "${SNAPPY_ERR_MSG} system search paths.") |
| endif () |
| if (Snappy_FIND_REQUIRED) |
| message(FATAL_ERROR "${SNAPPY_ERR_MSG}") |
| else (Snappy_FIND_REQUIRED) |
| message(STATUS "${SNAPPY_ERR_MSG}") |
| endif (Snappy_FIND_REQUIRED) |
| endif () |
| endif () |
| |
| mark_as_advanced( |
| SNAPPY_INCLUDE_DIR |
| SNAPPY_LIBS |
| SNAPPY_LIBRARIES |
| SNAPPY_STATIC_LIB |
| SNAPPY_SHARED_LIB |
| ) |