ClickHouse/cmake/find/odbc.cmake

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# This file copied from contrib/poco/cmake/FindODBC.cmake to allow build without submodules
if(OS_LINUX)
option (ENABLE_ODBC "Enable ODBC" ${ENABLE_LIBRARIES})
endif()
if(ENABLE_ODBC)
if (OS_LINUX)
option(USE_INTERNAL_ODBC_LIBRARY "Set to FALSE to use system odbc library instead of bundled" ${NOT_UNBUNDLED})
else ()
option(USE_INTERNAL_ODBC_LIBRARY "Set to FALSE to use system odbc library instead of bundled" OFF)
endif()
if(USE_INTERNAL_ODBC_LIBRARY AND NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/unixodbc/README")
message(WARNING "submodule contrib/unixodbc is missing. to fix try run: \n git submodule update --init --recursive")
set(USE_INTERNAL_ODBC_LIBRARY 0)
set(MISSING_INTERNAL_ODBC_LIBRARY 1)
endif()
set(ODBC_INCLUDE_DIRS ) # Include directories will be either used automatically by target_include_directories or set later.
if(USE_INTERNAL_ODBC_LIBRARY AND NOT MISSING_INTERNAL_ODBC_LIBRARY)
set(ODBC_LIBRARY unixodbc)
set(ODBC_LIBRARIES ${ODBC_LIBRARY})
set(ODBC_INCLUDE_DIRS "${ClickHouse_SOURCE_DIR}/contrib/unixodbc/include")
set(ODBC_FOUND 1)
else()
find_package(ODBC)
endif ()
if(ODBC_FOUND)
set(USE_ODBC 1)
set(ODBC_INCLUDE_DIRECTORIES ${ODBC_INCLUDE_DIRS}) # for old poco
set(ODBC_INCLUDE_DIR ${ODBC_INCLUDE_DIRS}) # for old poco
endif()
message(STATUS "Using odbc=${USE_ODBC}: ${ODBC_INCLUDE_DIRS} : ${ODBC_LIBRARIES}")
endif()