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FindGDAL.cmake
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FindGDAL.cmake
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## Once run this will define:
##
## GDAL_FOUND = system has GDAL lib
##
## GDAL_LIBRARY = full path to the library
##
## GDAL_INCLUDE_DIR = where to find headers
##
## Magnus Homann
IF(WIN32)
IF (MINGW)
FIND_PATH(GDAL_INCLUDE_DIR gdal.h /usr/local/include /usr/include c:/msys/local/include)
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal PATHS /usr/local/lib /usr/lib c:/msys/local/lib)
ENDIF (MINGW)
IF (MSVC)
SET (
GDAL_INCLUDE_DIR
"$ENV{LIB_DIR}/include/gdal"
CACHE STRING INTERNAL
)
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal gdal_i PATHS
"$ENV{LIB_DIR}/lib" /usr/lib c:/msys/local/lib)
IF (GDAL_LIBRARY)
SET (
GDAL_LIBRARY;odbc32;odbccp32
CACHE STRING INTERNAL)
ENDIF (GDAL_LIBRARY)
ENDIF (MSVC)
ELSE(WIN32)
IF(UNIX)
# try to use framework on mac
IF (APPLE)
SET (GDAL_MAC_PATH /Library/Frameworks/GDAL.framework/unix/bin)
ENDIF (APPLE)
SET(GDAL_CONFIG_PREFER_PATH "$ENV{GDAL_HOME}/bin" CACHE STRING "preferred path to GDAL (gdal-config)")
SET(GDAL_CONFIG_PREFER_FWTOOLS_PATH "$ENV{FWTOOLS_HOME}/bin_safe" CACHE STRING "preferred path to GDAL (gdal-config) from FWTools")
FIND_PROGRAM(GDAL_CONFIG gdal-config
${GDAL_CONFIG_PREFER_PATH}
${GDAL_CONFIG_PREFER_FWTOOLS_PATH}
${GDAL_MAC_PATH}
/usr/local/bin/
/usr/bin/
)
# MESSAGE("DBG GDAL_CONFIG ${GDAL_CONFIG}")
IF (GDAL_CONFIG)
## extract gdal version
EXEC_PROGRAM(${GDAL_CONFIG}
ARGS --version
OUTPUT_VARIABLE GDAL_VERSION )
STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1" GDAL_VERSION_MAJOR "${GDAL_VERSION}")
STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\2" GDAL_VERSION_MINOR "${GDAL_VERSION}")
# MESSAGE("DBG GDAL_VERSION ${GDAL_VERSION}")
# MESSAGE("DBG GDAL_VERSION_MAJOR ${GDAL_VERSION_MAJOR}")
# MESSAGE("DBG GDAL_VERSION_MINOR ${GDAL_VERSION_MINOR}")
# check for gdal version
# version 1.2.5 is known NOT to be supported (missing CPL_STDCALL macro)
# According to INSTALL, 1.4.0+ is required
IF (GDAL_VERSION_MAJOR LESS 1 OR GDAL_VERSION_MINOR LESS 4)
MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 1.4.0 or higher.")
ENDIF (GDAL_VERSION_MAJOR LESS 1 OR GDAL_VERSION_MINOR LESS 4)
# set INCLUDE_DIR to prefix+include
EXEC_PROGRAM(${GDAL_CONFIG}
ARGS --prefix
OUTPUT_VARIABLE GDAL_PREFIX)
#SET(GDAL_INCLUDE_DIR ${GDAL_PREFIX}/include CACHE STRING INTERNAL)
FIND_PATH(GDAL_INCLUDE_DIR
gdal.h
${GDAL_PREFIX}/include/gdal
${GDAL_PREFIX}/include
/usr/local/include
/usr/include
)
## extract link dirs for rpath
EXEC_PROGRAM(${GDAL_CONFIG}
ARGS --libs
OUTPUT_VARIABLE GDAL_CONFIG_LIBS )
## split off the link dirs (for rpath)
## use regular expression to match wildcard equivalent "-L*<endchar>"
## with <endchar> is a space or a semicolon
STRING(REGEX MATCHALL "[-][L]([^ ;])+"
GDAL_LINK_DIRECTORIES_WITH_PREFIX
"${GDAL_CONFIG_LIBS}" )
# MESSAGE("DBG GDAL_LINK_DIRECTORIES_WITH_PREFIX=${GDAL_LINK_DIRECTORIES_WITH_PREFIX}")
## remove prefix -L because we need the pure directory for LINK_DIRECTORIES
IF (GDAL_LINK_DIRECTORIES_WITH_PREFIX)
STRING(REGEX REPLACE "[-][L]" "" GDAL_LINK_DIRECTORIES ${GDAL_LINK_DIRECTORIES_WITH_PREFIX} )
ENDIF (GDAL_LINK_DIRECTORIES_WITH_PREFIX)
## split off the name
## use regular expression to match wildcard equivalent "-l*<endchar>"
## with <endchar> is a space or a semicolon
STRING(REGEX MATCHALL "[-][l]([^ ;])+"
GDAL_LIB_NAME_WITH_PREFIX
"${GDAL_CONFIG_LIBS}" )
# MESSAGE("DBG GDAL_LIB_NAME_WITH_PREFIX=${GDAL_LIB_NAME_WITH_PREFIX}")
## remove prefix -l because we need the pure name
IF (GDAL_LIB_NAME_WITH_PREFIX)
STRING(REGEX REPLACE "[-][l]" "" GDAL_LIB_NAME ${GDAL_LIB_NAME_WITH_PREFIX} )
ENDIF (GDAL_LIB_NAME_WITH_PREFIX)
IF (APPLE)
SET(GDAL_LIBRARY ${GDAL_LINK_DIRECTORIES}/lib${GDAL_LIB_NAME}.dylib CACHE STRING INTERNAL)
ELSE (APPLE)
SET(GDAL_LIBRARY ${GDAL_LINK_DIRECTORIES}/lib${GDAL_LIB_NAME}.so CACHE STRING INTERNAL)
ENDIF (APPLE)
ELSE(GDAL_CONFIG)
MESSAGE("FindGDAL.cmake: gdal-config not found. Please set it manually. GDAL_CONFIG=${GDAL_CONFIG}")
ENDIF(GDAL_CONFIG)
ENDIF(UNIX)
ENDIF(WIN32)
IF (GDAL_INCLUDE_DIR AND GDAL_LIBRARY)
SET(GDAL_FOUND TRUE)
ENDIF (GDAL_INCLUDE_DIR AND GDAL_LIBRARY)
IF (GDAL_FOUND)
IF (NOT GDAL_FIND_QUIETLY)
MESSAGE(STATUS "Found GDAL: ${GDAL_LIBRARY}")
ENDIF (NOT GDAL_FIND_QUIETLY)
ELSE (GDAL_FOUND)
MESSAGE(GDAL_INCLUDE_DIR=${GDAL_INCLUDE_DIR})
MESSAGE(GDAL_LIBRARY=${GDAL_LIBRARY})
MESSAGE(FATAL_ERROR "Could not find GDAL")
ENDIF (GDAL_FOUND)