diff options
Diffstat (limited to 'Modules/FindGDAL.cmake')
| -rw-r--r-- | Modules/FindGDAL.cmake | 150 |
1 files changed, 103 insertions, 47 deletions
diff --git a/Modules/FindGDAL.cmake b/Modules/FindGDAL.cmake index 0cce9cb9f..fde84d488 100644 --- a/Modules/FindGDAL.cmake +++ b/Modules/FindGDAL.cmake @@ -1,31 +1,49 @@ # Distributed under the OSI-approved BSD 3-Clause License. See accompanying # file Copyright.txt or https://cmake.org/licensing for details. -#.rst: -# FindGDAL -# -------- -# -# -# -# Locate gdal -# -# This module accepts the following environment variables: -# -# :: -# -# GDAL_DIR or GDAL_ROOT - Specify the location of GDAL -# -# -# -# This module defines the following CMake variables: -# -# :: -# -# GDAL_FOUND - True if libgdal is found -# GDAL_LIBRARY - A variable pointing to the GDAL library -# GDAL_INCLUDE_DIR - Where to find the headers +#[=======================================================================[.rst: +FindGDAL +-------- + +Find Geospatial Data Abstraction Library (GDAL). + +IMPORTED Targets +^^^^^^^^^^^^^^^^ + +This module defines :prop_tgt:`IMPORTED` target ``GDAL::GDAL`` +if GDAL has been found. + +Result Variables +^^^^^^^^^^^^^^^^ + +This module will set the following variables in your project: + +``GDAL_FOUND`` + True if GDAL is found. +``GDAL_INCLUDE_DIRS`` + Include directories for GDAL headers. +``GDAL_LIBRARIES`` + Libraries to link to GDAL. +``GDAL_VERSION`` + The version of GDAL found. + +Cache variables +^^^^^^^^^^^^^^^ + +The following cache variables may also be set: + +``GDAL_LIBRARY`` + The libgdal library file. +``GDAL_INCLUDE_DIR`` + The directory containing ``gdal.h``. + +Hints +^^^^^ + +Set ``GDAL_DIR`` or ``GDAL_ROOT`` in the environment to specify the +GDAL installation prefix. +#]=======================================================================] -# # $GDALDIR is an environment variable that would # correspond to the ./configure --prefix=$GDAL_DIR # used in building gdal. @@ -50,13 +68,6 @@ find_path(GDAL_INCLUDE_DIR gdal.h include/gdal include/GDAL include - PATHS - ~/Library/Frameworks/gdal.framework/Headers - /Library/Frameworks/gdal.framework/Headers - /sw # Fink - /opt/local # DarwinPorts - /opt/csw # Blastwave - /opt ) if(UNIX) @@ -69,20 +80,53 @@ if(UNIX) ENV GDAL_DIR ENV GDAL_ROOT PATH_SUFFIXES bin - PATHS - /sw # Fink - /opt/local # DarwinPorts - /opt/csw # Blastwave - /opt ) if(GDAL_CONFIG) exec_program(${GDAL_CONFIG} ARGS --libs OUTPUT_VARIABLE GDAL_CONFIG_LIBS) + if(GDAL_CONFIG_LIBS) - string(REGEX MATCHALL "-l[^ ]+" _gdal_dashl ${GDAL_CONFIG_LIBS}) - string(REPLACE "-l" "" _gdal_lib "${_gdal_dashl}") - string(REGEX MATCHALL "-L[^ ]+" _gdal_dashL ${GDAL_CONFIG_LIBS}) - string(REPLACE "-L" "" _gdal_libpath "${_gdal_dashL}") + # treat the output as a command line and split it up + separate_arguments(args NATIVE_COMMAND "${GDAL_CONFIG_LIBS}") + + # only consider libraries whose name matches this pattern + set(name_pattern "[gG][dD][aA][lL]") + + # consider each entry as a possible library path, name, or parent directory + foreach(arg IN LISTS args) + # library name + if("${arg}" MATCHES "^-l(.*)$") + set(lib "${CMAKE_MATCH_1}") + + # only consider libraries whose name matches the expected pattern + if("${lib}" MATCHES "${name_pattern}") + list(APPEND _gdal_lib "${lib}") + endif() + # library search path + elseif("${arg}" MATCHES "^-L(.*)$") + list(APPEND _gdal_libpath "${CMAKE_MATCH_1}") + # assume this is a full path to a library + elseif(IS_ABSOLUTE "${arg}" AND EXISTS "${arg}") + # extract the file name + get_filename_component(lib "${arg}" NAME) + + # only consider libraries whose name matches the expected pattern + if(NOT "${lib}" MATCHES "${name_pattern}") + continue() + endif() + + # extract the file directory + get_filename_component(dir "${arg}" DIRECTORY) + + # remove library prefixes/suffixes + string(REGEX REPLACE "^(${CMAKE_SHARED_LIBRARY_PREFIX}|${CMAKE_STATIC_LIBRARY_PREFIX})" "" lib "${lib}") + string(REGEX REPLACE "(${CMAKE_SHARED_LIBRARY_SUFFIX}|${CMAKE_STATIC_LIBRARY_SUFFIX})$" "" lib "${lib}") + + # use the file name and directory as hints + list(APPEND _gdal_libpath "${dir}") + list(APPEND _gdal_lib "${lib}") + endif() + endforeach() endif() endif() endif() @@ -94,16 +138,28 @@ find_library(GDAL_LIBRARY ENV GDAL_ROOT ${_gdal_libpath} PATH_SUFFIXES lib - PATHS - /sw - /opt/local - /opt/csw - /opt - /usr/freeware ) +if (EXISTS "${GDAL_INCLUDE_DIR}/gdal_version.h") + file(STRINGS "${GDAL_INCLUDE_DIR}/gdal_version.h" _gdal_version + REGEX "GDAL_RELEASE_NAME") + string(REGEX REPLACE ".*\"\(.*\)\"" "\\1" GDAL_VERSION "${_gdal_version}") + unset(_gdal_version) +else () + set(GDAL_VERSION GDAL_VERSION-NOTFOUND) +endif () + include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(GDAL DEFAULT_MSG GDAL_LIBRARY GDAL_INCLUDE_DIR) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(GDAL + VERSION_VAR GDAL_VERSION + REQUIRED_VARS GDAL_LIBRARY GDAL_INCLUDE_DIR) + +if (GDAL_FOUND AND NOT TARGET GDAL::GDAL) + add_library(GDAL::GDAL UNKNOWN IMPORTED) + set_target_properties(GDAL::GDAL PROPERTIES + IMPORTED_LOCATION "${GDAL_LIBRARY}" + INTERFACE_INCLUDE_DIRECTORIES "${GDAL_INCLUDE_DIR}") +endif () set(GDAL_LIBRARIES ${GDAL_LIBRARY}) set(GDAL_INCLUDE_DIRS ${GDAL_INCLUDE_DIR}) |