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230 lines
9.3 KiB
CMake
230 lines
9.3 KiB
CMake
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindPostgreSQL
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--------------
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Find the PostgreSQL installation.
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IMPORTED Targets
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^^^^^^^^^^^^^^^^
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This module defines :prop_tgt:`IMPORTED` target ``PostgreSQL::PostgreSQL``
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if PostgreSQL has been found.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module will set the following variables in your project:
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``PostgreSQL_FOUND``
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True if PostgreSQL is found.
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``PostgreSQL_LIBRARIES``
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the PostgreSQL libraries needed for linking
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``PostgreSQL_INCLUDE_DIRS``
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the directories of the PostgreSQL headers
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``PostgreSQL_LIBRARY_DIRS``
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the link directories for PostgreSQL libraries
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``PostgreSQL_VERSION_STRING``
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the version of PostgreSQL found
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#]=======================================================================]
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# ----------------------------------------------------------------------------
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# History:
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# This module is derived from the module originally found in the VTK source tree.
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#
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# ----------------------------------------------------------------------------
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# Note:
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# PostgreSQL_ADDITIONAL_VERSIONS is a variable that can be used to set the
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# version number of the implementation of PostgreSQL.
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# In Windows the default installation of PostgreSQL uses that as part of the path.
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# E.g C:\Program Files\PostgreSQL\8.4.
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# Currently, the following version numbers are known to this module:
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# "11" "10" "9.6" "9.5" "9.4" "9.3" "9.2" "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0"
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#
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# To use this variable just do something like this:
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# set(PostgreSQL_ADDITIONAL_VERSIONS "9.2" "8.4.4")
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# before calling find_package(PostgreSQL) in your CMakeLists.txt file.
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# This will mean that the versions you set here will be found first in the order
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# specified before the default ones are searched.
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#
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# ----------------------------------------------------------------------------
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# You may need to manually set:
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# PostgreSQL_INCLUDE_DIR - the path to where the PostgreSQL include files are.
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# PostgreSQL_LIBRARY_DIR - The path to where the PostgreSQL library files are.
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# If FindPostgreSQL.cmake cannot find the include files or the library files.
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#
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# ----------------------------------------------------------------------------
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# The following variables are set if PostgreSQL is found:
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# PostgreSQL_FOUND - Set to true when PostgreSQL is found.
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# PostgreSQL_INCLUDE_DIRS - Include directories for PostgreSQL
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# PostgreSQL_LIBRARY_DIRS - Link directories for PostgreSQL libraries
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# PostgreSQL_LIBRARIES - The PostgreSQL libraries.
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#
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# The ``PostgreSQL::PostgreSQL`` imported target is also created.
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#
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# ----------------------------------------------------------------------------
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# If you have installed PostgreSQL in a non-standard location.
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# (Please note that in the following comments, it is assumed that <Your Path>
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# points to the root directory of the include directory of PostgreSQL.)
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# Then you have three options.
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# 1) After CMake runs, set PostgreSQL_INCLUDE_DIR to <Your Path>/include and
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# PostgreSQL_LIBRARY_DIR to wherever the library pq (or libpq in windows) is
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# 2) Use CMAKE_INCLUDE_PATH to set a path to <Your Path>/PostgreSQL<-version>. This will allow find_path()
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# to locate PostgreSQL_INCLUDE_DIR by utilizing the PATH_SUFFIXES option. e.g. In your CMakeLists.txt file
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# set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "<Your Path>/include")
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# 3) Set an environment variable called ${PostgreSQL_ROOT} that points to the root of where you have
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# installed PostgreSQL, e.g. <Your Path>.
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#
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# ----------------------------------------------------------------------------
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set(PostgreSQL_INCLUDE_PATH_DESCRIPTION "top-level directory containing the PostgreSQL include directories. E.g /usr/local/include/PostgreSQL/8.4 or C:/Program Files/PostgreSQL/8.4/include")
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set(PostgreSQL_INCLUDE_DIR_MESSAGE "Set the PostgreSQL_INCLUDE_DIR cmake cache entry to the ${PostgreSQL_INCLUDE_PATH_DESCRIPTION}")
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set(PostgreSQL_LIBRARY_PATH_DESCRIPTION "top-level directory containing the PostgreSQL libraries.")
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set(PostgreSQL_LIBRARY_DIR_MESSAGE "Set the PostgreSQL_LIBRARY_DIR cmake cache entry to the ${PostgreSQL_LIBRARY_PATH_DESCRIPTION}")
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set(PostgreSQL_ROOT_DIR_MESSAGE "Set the PostgreSQL_ROOT system variable to where PostgreSQL is found on the machine E.g C:/Program Files/PostgreSQL/8.4")
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set(PostgreSQL_KNOWN_VERSIONS ${PostgreSQL_ADDITIONAL_VERSIONS}
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"11" "10" "9.6" "9.5" "9.4" "9.3" "9.2" "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0")
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# Define additional search paths for root directories.
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set( PostgreSQL_ROOT_DIRECTORIES
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ENV PostgreSQL_ROOT
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${PostgreSQL_ROOT}
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)
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foreach(suffix ${PostgreSQL_KNOWN_VERSIONS})
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if(WIN32)
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list(APPEND PostgreSQL_LIBRARY_ADDITIONAL_SEARCH_SUFFIXES
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"PostgreSQL/${suffix}/lib")
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list(APPEND PostgreSQL_INCLUDE_ADDITIONAL_SEARCH_SUFFIXES
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"PostgreSQL/${suffix}/include")
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list(APPEND PostgreSQL_TYPE_ADDITIONAL_SEARCH_SUFFIXES
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"PostgreSQL/${suffix}/include/server")
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endif()
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if(UNIX)
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list(APPEND PostgreSQL_LIBRARY_ADDITIONAL_SEARCH_SUFFIXES
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"pgsql-${suffix}/lib")
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list(APPEND PostgreSQL_INCLUDE_ADDITIONAL_SEARCH_SUFFIXES
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"pgsql-${suffix}/include")
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list(APPEND PostgreSQL_TYPE_ADDITIONAL_SEARCH_SUFFIXES
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"postgresql/${suffix}/server"
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"pgsql-${suffix}/include/server")
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endif()
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endforeach()
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#
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# Look for an installation.
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#
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find_path(PostgreSQL_INCLUDE_DIR
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NAMES libpq-fe.h
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PATHS
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# Look in other places.
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${PostgreSQL_ROOT_DIRECTORIES}
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PATH_SUFFIXES
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pgsql
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postgresql
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include
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${PostgreSQL_INCLUDE_ADDITIONAL_SEARCH_SUFFIXES}
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# Help the user find it if we cannot.
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DOC "The ${PostgreSQL_INCLUDE_DIR_MESSAGE}"
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)
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find_path(PostgreSQL_TYPE_INCLUDE_DIR
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NAMES catalog/pg_type.h
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PATHS
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# Look in other places.
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${PostgreSQL_ROOT_DIRECTORIES}
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PATH_SUFFIXES
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postgresql
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pgsql/server
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postgresql/server
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include/server
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${PostgreSQL_TYPE_ADDITIONAL_SEARCH_SUFFIXES}
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# Help the user find it if we cannot.
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DOC "The ${PostgreSQL_INCLUDE_DIR_MESSAGE}"
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)
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# The PostgreSQL library.
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set (PostgreSQL_LIBRARY_TO_FIND pq)
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# Setting some more prefixes for the library
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set (PostgreSQL_LIB_PREFIX "")
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if ( WIN32 )
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set (PostgreSQL_LIB_PREFIX ${PostgreSQL_LIB_PREFIX} "lib")
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set (PostgreSQL_LIBRARY_TO_FIND ${PostgreSQL_LIB_PREFIX}${PostgreSQL_LIBRARY_TO_FIND})
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endif()
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find_library(PostgreSQL_LIBRARY
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NAMES ${PostgreSQL_LIBRARY_TO_FIND}
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PATHS
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${PostgreSQL_ROOT_DIRECTORIES}
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PATH_SUFFIXES
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lib
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${PostgreSQL_LIBRARY_ADDITIONAL_SEARCH_SUFFIXES}
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# Help the user find it if we cannot.
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DOC "The ${PostgreSQL_LIBRARY_DIR_MESSAGE}"
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)
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get_filename_component(PostgreSQL_LIBRARY_DIR ${PostgreSQL_LIBRARY} PATH)
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if (PostgreSQL_INCLUDE_DIR)
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# Some platforms include multiple pg_config.hs for multi-lib configurations
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# This is a temporary workaround. A better solution would be to compile
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# a dummy c file and extract the value of the symbol.
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file(GLOB _PG_CONFIG_HEADERS "${PostgreSQL_INCLUDE_DIR}/pg_config*.h")
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foreach(_PG_CONFIG_HEADER ${_PG_CONFIG_HEADERS})
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if(EXISTS "${_PG_CONFIG_HEADER}")
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file(STRINGS "${_PG_CONFIG_HEADER}" pgsql_version_str
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REGEX "^#define[\t ]+PG_VERSION_NUM[\t ]+.*")
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if(pgsql_version_str)
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string(REGEX REPLACE "^#define[\t ]+PG_VERSION_NUM[\t ]+([0-9]*).*"
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"\\1" _PostgreSQL_VERSION_NUM "${pgsql_version_str}")
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break()
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endif()
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endif()
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endforeach()
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if (_PostgreSQL_VERSION_NUM)
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math(EXPR _PostgreSQL_major_version "${_PostgreSQL_VERSION_NUM} / 10000")
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math(EXPR _PostgreSQL_minor_version "${_PostgreSQL_VERSION_NUM} % 10000")
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set(PostgreSQL_VERSION_STRING "${_PostgreSQL_major_version}.${_PostgreSQL_minor_version}")
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unset(_PostgreSQL_major_version)
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unset(_PostgreSQL_minor_version)
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else ()
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foreach(_PG_CONFIG_HEADER ${_PG_CONFIG_HEADERS})
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if(EXISTS "${_PG_CONFIG_HEADER}")
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file(STRINGS "${_PG_CONFIG_HEADER}" pgsql_version_str
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REGEX "^#define[\t ]+PG_VERSION[\t ]+\".*\"")
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if(pgsql_version_str)
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string(REGEX REPLACE "^#define[\t ]+PG_VERSION[\t ]+\"([^\"]*)\".*"
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"\\1" PostgreSQL_VERSION_STRING "${pgsql_version_str}")
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break()
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endif()
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endif()
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endforeach()
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endif ()
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unset(_PostgreSQL_VERSION_NUM)
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unset(pgsql_version_str)
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endif()
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# Did we find anything?
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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find_package_handle_standard_args(PostgreSQL
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REQUIRED_VARS PostgreSQL_LIBRARY PostgreSQL_INCLUDE_DIR PostgreSQL_TYPE_INCLUDE_DIR
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VERSION_VAR PostgreSQL_VERSION_STRING)
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set(PostgreSQL_FOUND ${POSTGRESQL_FOUND})
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# Now try to get the include and library path.
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if(PostgreSQL_FOUND)
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if (NOT TARGET PostgreSQL::PostgreSQL)
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add_library(PostgreSQL::PostgreSQL UNKNOWN IMPORTED)
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set_target_properties(PostgreSQL::PostgreSQL PROPERTIES
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IMPORTED_LOCATION "${PostgreSQL_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${PostgreSQL_INCLUDE_DIR};${PostgreSQL_TYPE_INCLUDE_DIR}")
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endif ()
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set(PostgreSQL_INCLUDE_DIRS ${PostgreSQL_INCLUDE_DIR} ${PostgreSQL_TYPE_INCLUDE_DIR} )
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set(PostgreSQL_LIBRARY_DIRS ${PostgreSQL_LIBRARY_DIR} )
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set(PostgreSQL_LIBRARIES ${PostgreSQL_LIBRARY})
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endif()
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mark_as_advanced(PostgreSQL_INCLUDE_DIR PostgreSQL_TYPE_INCLUDE_DIR PostgreSQL_LIBRARY )
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