rocksdb/cmake/RocksDBConfig.cmake.in
Tongliang Liao 244797aa4b Add find_dependency() in cmake config file. (#6791)
Summary:
Currently when building PyTorch with latest RocksDB we get errors like "missing target Snappy::snappy", because they are simply not there.
With old `${VAR}` approach we essentially hard-code the abs path found during RocksDB build, which is:
 - Not relocatable.
 - Doesn't work when changed to modern target-based design because that requires target to present when used for expansion.

This fix allows cmake to setup imported target, if enabled during RocksDB build, when downstream uses `find_package(RocksDB)`.

This is for https://github.com/facebook/rocksdb/issues/6179
tchaikov Please help review, thanks!
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6791

Reviewed By: riversand963

Differential Revision: D21471553

fbshipit-source-id: 8d4ff2ab589a97ca6e6ba27e1f17b97a00f06206
2020-05-12 21:18:29 -07:00

55 lines
891 B
CMake

@PACKAGE_INIT@
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/modules")
include(CMakeFindDependencyMacro)
set(GFLAGS_USE_TARGET_NAMESPACE @GFLAGS_USE_TARGET_NAMESPACE@)
if(@WITH_JEMALLOC@)
find_dependency(JeMalloc)
endif()
if(@WITH_GFLAGS@)
find_dependency(gflags CONFIG)
if(NOT gflags_FOUND)
find_dependency(gflags)
endif()
endif()
if(@WITH_SNAPPY@)
find_dependency(Snappy CONFIG)
if(NOT Snappy_FOUND)
find_dependency(Snappy)
endif()
endif()
if(@WITH_ZLIB@)
find_dependency(ZLIB)
endif()
if(@WITH_BZ2@)
find_dependency(BZip2)
endif()
if(@WITH_LZ4@)
find_dependency(lz4)
endif()
if(@WITH_ZSTD@)
find_dependency(zstd)
endif()
if(@WITH_NUMA@)
find_dependency(NUMA)
endif()
if(@WITH_TBB@)
find_dependency(TBB)
endif()
find_dependency(Threads)
include("${CMAKE_CURRENT_LIST_DIR}/RocksDBTargets.cmake")
check_required_components(RocksDB)