ClickHouse/cmake/find/odbc.cmake

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option (ENABLE_ODBC "Enable ODBC library" ${ENABLE_LIBRARIES})
if (NOT OS_LINUX)
if (ENABLE_ODBC)
message(STATUS "ODBC is only supported on Linux")
endif()
set (ENABLE_ODBC OFF CACHE INTERNAL "")
endif ()
if (NOT ENABLE_ODBC)
if (USE_INTERNAL_ODBC_LIBRARY)
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't use internal ODBC with ENABLE_ODBC=OFF")
endif()
add_library (unixodbc INTERFACE)
target_compile_definitions (unixodbc INTERFACE USE_ODBC=0)
message (STATUS "Not using unixodbc")
return()
endif()
option (USE_INTERNAL_ODBC_LIBRARY "Use internal ODBC library" ${NOT_UNBUNDLED})
if (NOT USE_INTERNAL_ODBC_LIBRARY)
find_library (LIBRARY_ODBC NAMES unixodbc odbc)
find_path (INCLUDE_ODBC sql.h)
if(LIBRARY_ODBC AND INCLUDE_ODBC)
add_library (unixodbc INTERFACE)
set_target_properties (unixodbc PROPERTIES INTERFACE_LINK_LIBRARIES ${LIBRARY_ODBC})
set_target_properties (unixodbc PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${INCLUDE_ODBC})
set_target_properties (unixodbc PROPERTIES INTERFACE_COMPILE_DEFINITIONS USE_ODBC=1)
if (USE_STATIC_LIBRARIES)
find_library(LTDL_LIBRARY ltdl)
if (LTDL_LIBRARY)
target_link_libraries(unixodbc INTERFACE ${LTDL_LIBRARY})
endif()
endif()
set(EXTERNAL_ODBC_LIBRARY_FOUND 1)
message (STATUS "Found odbc: ${LIBRARY_ODBC}")
else()
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find system ODBC library")
set(EXTERNAL_ODBC_LIBRARY_FOUND 0)
endif()
endif()
if (NOT EXTERNAL_ODBC_LIBRARY_FOUND)
set (USE_INTERNAL_ODBC_LIBRARY 1)
endif ()
set (USE_INTERNAL_NANODBC_LIBRARY 1)
message (STATUS "Using unixodbc")