GEOS
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FindGEOS.cmake
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181
FindGEOS.cmake
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# Find GEOS
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# ~~~~~~~~~
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# Copyright (c) 2008, Mateusz Loskot <mateusz@loskot.net>
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# (based on FindGDAL.cmake by Magnus Homann)
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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#
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# CMake module to search for GEOS library
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#
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# If it's found it sets GEOS_FOUND to TRUE
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# and following variables are set:
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# GEOS_INCLUDE_DIR
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# GEOS_LIBRARY
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#
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INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
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IF(WIN32)
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IF (MINGW)
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FIND_PATH(GEOS_INCLUDE_DIR geos_c.h /usr/local/include /usr/include c:/msys/local/include)
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FIND_LIBRARY(GEOS_LIBRARY NAMES geos_c PATHS /usr/local/lib /usr/lib c:/msys/local/lib)
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ENDIF (MINGW)
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IF (MSVC)
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FIND_PATH(GEOS_INCLUDE_DIR geos_c.h $ENV{LIB_DIR}/include $ENV{INCLUDE})
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FIND_LIBRARY(GEOS_LIBRARY NAMES geos geos_c_i geos_c PATHS
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"$ENV{LIB_DIR}/lib"
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$ENV{LIB}
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)
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ENDIF (MSVC)
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ELSE(WIN32)
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IF(UNIX)
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# try to use framework on mac
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# want clean framework path, not unix compatibility path
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IF (APPLE)
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IF (CMAKE_FIND_FRAMEWORK MATCHES "FIRST"
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OR CMAKE_FRAMEWORK_PATH MATCHES "ONLY"
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OR NOT CMAKE_FIND_FRAMEWORK)
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SET (CMAKE_FIND_FRAMEWORK_save ${CMAKE_FIND_FRAMEWORK} CACHE STRING "" FORCE)
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SET (CMAKE_FIND_FRAMEWORK "ONLY" CACHE STRING "" FORCE)
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FIND_LIBRARY(GEOS_LIBRARY GEOS)
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IF (GEOS_LIBRARY)
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# they're all the same in a framework
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SET (GEOS_INCLUDE_DIR ${GEOS_LIBRARY}/Headers CACHE PATH "Path to a file.")
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# set GEOS_CONFIG to make later test happy, not used here, may not exist
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SET (GEOS_CONFIG ${GEOS_LIBRARY}/unix/bin/geos-config CACHE FILEPATH "Path to a program.")
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# version in info.plist
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GET_VERSION_PLIST (${GEOS_LIBRARY}/Resources/Info.plist GEOS_VERSION)
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IF (NOT GEOS_VERSION)
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MESSAGE (FATAL_ERROR "Could not determine GEOS version from framework.")
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ENDIF (NOT GEOS_VERSION)
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STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1" GEOS_VERSION_MAJOR "${GEOS_VERSION}")
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STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\2" GEOS_VERSION_MINOR "${GEOS_VERSION}")
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IF (GEOS_VERSION_MAJOR LESS 3)
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MESSAGE (FATAL_ERROR "GEOS version is too old (${GEOS_VERSION}). Use 3.0.0 or higher.")
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ENDIF (GEOS_VERSION_MAJOR LESS 3)
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ENDIF (GEOS_LIBRARY)
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SET (CMAKE_FIND_FRAMEWORK ${CMAKE_FIND_FRAMEWORK_save} CACHE STRING "" FORCE)
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ENDIF ()
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ENDIF (APPLE)
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IF(CYGWIN)
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FIND_LIBRARY(GEOS_LIBRARY NAMES geos_c PATHS /usr/lib /usr/local/lib)
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ENDIF(CYGWIN)
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IF (NOT GEOS_INCLUDE_DIR OR NOT GEOS_LIBRARY OR NOT GEOS_CONFIG)
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# didn't find OS X framework, and was not set by user
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SET(GEOS_CONFIG_PREFER_PATH "$ENV{GEOS_HOME}/bin" CACHE STRING "preferred path to GEOS (geos-config)")
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FIND_PROGRAM(GEOS_CONFIG geos-config
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${GEOS_CONFIG_PREFER_PATH}
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/usr/local/bin/
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/usr/bin/
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)
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#MESSAGE("DBG GEOS_CONFIG ${GEOS_CONFIG}")
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IF (GEOS_CONFIG)
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EXEC_PROGRAM(${GEOS_CONFIG}
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ARGS --version
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OUTPUT_VARIABLE GEOS_VERSION)
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STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1" GEOS_VERSION_MAJOR "${GEOS_VERSION}")
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STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\2" GEOS_VERSION_MINOR "${GEOS_VERSION}")
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IF (GEOS_VERSION_MAJOR LESS 3 OR (GEOS_VERSION_MAJOR EQUAL 3 AND GEOS_VERSION_MINOR LESS 3) )
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MESSAGE (FATAL_ERROR "GEOS version is too old (${GEOS_VERSION}). Use 3.3.0 or higher.")
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ENDIF (GEOS_VERSION_MAJOR LESS 3 OR (GEOS_VERSION_MAJOR EQUAL 3 AND GEOS_VERSION_MINOR LESS 3) )
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# set INCLUDE_DIR to prefix+include
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EXEC_PROGRAM(${GEOS_CONFIG}
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ARGS --prefix
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OUTPUT_VARIABLE GEOS_PREFIX)
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FIND_PATH(GEOS_INCLUDE_DIR
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geos_c.h
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${GEOS_PREFIX}/include
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/usr/local/include
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/usr/include
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)
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## extract link dirs for rpath
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EXEC_PROGRAM(${GEOS_CONFIG}
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ARGS --libs
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OUTPUT_VARIABLE GEOS_CONFIG_LIBS )
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## split off the link dirs (for rpath)
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## use regular expression to match wildcard equivalent "-L*<endchar>"
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## with <endchar> is a space or a semicolon
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STRING(REGEX MATCHALL "[-][L]([^ ;])+"
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GEOS_LINK_DIRECTORIES_WITH_PREFIX
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"${GEOS_CONFIG_LIBS}" )
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#MESSAGE("DBG GEOS_LINK_DIRECTORIES_WITH_PREFIX=${GEOS_LINK_DIRECTORIES_WITH_PREFIX}")
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## remove prefix -L because we need the pure directory for LINK_DIRECTORIES
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IF (GEOS_LINK_DIRECTORIES_WITH_PREFIX)
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STRING(REGEX REPLACE "[-][L]" "" GEOS_LINK_DIRECTORIES ${GEOS_LINK_DIRECTORIES_WITH_PREFIX} )
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ENDIF (GEOS_LINK_DIRECTORIES_WITH_PREFIX)
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### XXX - mloskot: geos-config --libs does not return -lgeos_c, so set it manually
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## split off the name
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## use regular expression to match wildcard equivalent "-l*<endchar>"
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## with <endchar> is a space or a semicolon
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#STRING(REGEX MATCHALL "[-][l]([^ ;])+"
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# GEOS_LIB_NAME_WITH_PREFIX
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# "${GEOS_CONFIG_LIBS}" )
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#MESSAGE("DBG GEOS_CONFIG_LIBS=${GEOS_CONFIG_LIBS}")
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#MESSAGE("DBG GEOS_LIB_NAME_WITH_PREFIX=${GEOS_LIB_NAME_WITH_PREFIX}")
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SET(GEOS_LIB_NAME_WITH_PREFIX -lgeos_c CACHE STRING INTERNAL)
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## remove prefix -l because we need the pure name
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IF (GEOS_LIB_NAME_WITH_PREFIX)
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STRING(REGEX REPLACE "[-][l]" "" GEOS_LIB_NAME ${GEOS_LIB_NAME_WITH_PREFIX} )
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ENDIF (GEOS_LIB_NAME_WITH_PREFIX)
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#MESSAGE("DBG GEOS_LIB_NAME=${GEOS_LIB_NAME}")
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IF (APPLE)
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IF (NOT GEOS_LIBRARY)
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# work around empty GEOS_LIBRARY left by framework check
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# while still preserving user setting if given
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# ***FIXME*** need to improve framework check so below not needed
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SET(GEOS_LIBRARY ${GEOS_LINK_DIRECTORIES}/lib${GEOS_LIB_NAME}.dylib CACHE STRING INTERNAL FORCE)
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ENDIF (NOT GEOS_LIBRARY)
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ELSE (APPLE)
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FIND_LIBRARY(GEOS_LIBRARY NAMES ${GEOS_LIB_NAME} PATHS ${GEOS_LIB_DIRECTORIES}/lib)
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ENDIF (APPLE)
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#MESSAGE("DBG GEOS_LIBRARY=${GEOS_LIBRARY}")
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ELSE(GEOS_CONFIG)
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MESSAGE("FindGEOS.cmake: geos-config not found. Please set it manually. GEOS_CONFIG=${GEOS_CONFIG}")
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ENDIF(GEOS_CONFIG)
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ENDIF(NOT GEOS_INCLUDE_DIR OR NOT GEOS_LIBRARY OR NOT GEOS_CONFIG)
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ENDIF(UNIX)
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ENDIF(WIN32)
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IF(GEOS_INCLUDE_DIR AND NOT GEOS_VERSION)
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FILE(READ ${GEOS_INCLUDE_DIR}/geos_c.h VERSIONFILE)
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STRING(REGEX MATCH "#define GEOS_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+(dev)?\"" GEOS_VERSION ${VERSIONFILE})
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STRING(REGEX MATCH "[0-9]+\\.[0-9]\\.[0-9]+" GEOS_VERSION ${GEOS_VERSION})
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ENDIF(GEOS_INCLUDE_DIR AND NOT GEOS_VERSION)
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IF (GEOS_INCLUDE_DIR AND GEOS_LIBRARY)
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SET(GEOS_FOUND TRUE)
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ENDIF (GEOS_INCLUDE_DIR AND GEOS_LIBRARY)
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IF (GEOS_FOUND)
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IF (NOT GEOS_FIND_QUIETLY)
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MESSAGE(STATUS "Found GEOS: ${GEOS_LIBRARY} (${GEOS_VERSION})")
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ENDIF (NOT GEOS_FIND_QUIETLY)
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ELSE (GEOS_FOUND)
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MESSAGE(GEOS_INCLUDE_DIR=${GEOS_INCLUDE_DIR})
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MESSAGE(GEOS_LIBRARY=${GEOS_LIBRARY})
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MESSAGE(FATAL_ERROR "Could not find GEOS")
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ENDIF (GEOS_FOUND)
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