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QGIS/cmake/FindGDAL.cmake
Nyall Dawson 6785fe4554 [cmake] Use execute_process instead of deprecated EXEC_COMMAND 
See CMP0153
2024-04-21 12:52:02 +10:00

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CMake
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# Find GDAL
# ~~~~~~~~~
# Copyright (c) 2007, Magnus Homann <magnus at homann dot se>
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
#
# 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
find_package(GDAL CONFIG)
if(NOT GDAL_FOUND)
# Fallback logic for GDAL < 3.5, as soon as we switch to GDAL>=3.5 this file (Find_GDAL.cmake) can be deleted
INCLUDE (${CMAKE_SOURCE_DIR}/cmake/MacPlistMacros.cmake)
IF(WIN32)
IF (MINGW)
FIND_PATH(GDAL_INCLUDE_DIR gdal.h /usr/local/include /usr/include c:/msys/local/include PATH_SUFFIXES gdal)
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal PATHS /usr/local/lib /usr/lib c:/msys/local/lib)
ENDIF (MINGW)
IF (MSVC)
FIND_PATH(GDAL_INCLUDE_DIR gdal.h "$ENV{LIB_DIR}/include/gdal" $ENV{INCLUDE})
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal gdal_i PATHS
"$ENV{LIB_DIR}/lib" $ENV{LIB} /usr/lib c:/msys/local/lib)
IF (GDAL_LIBRARY)
SET (
GDAL_LIBRARY;odbc32;odbccp32
CACHE STRING INTERNAL)
ENDIF (GDAL_LIBRARY)
ENDIF (MSVC)
ELSEIF(APPLE AND QGIS_MAC_DEPS_DIR)
FIND_PATH(GDAL_INCLUDE_DIR gdal.h "$ENV{LIB_DIR}/include")
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal PATHS "$ENV{LIB_DIR}/lib")
ELSE(WIN32)
IF(UNIX)
# try to use framework on mac
# want clean framework path, not unix compatibility path
IF (APPLE)
IF (CMAKE_FIND_FRAMEWORK MATCHES "FIRST"
OR CMAKE_FRAMEWORK_PATH MATCHES "ONLY"
OR NOT CMAKE_FIND_FRAMEWORK)
SET (CMAKE_FIND_FRAMEWORK_save ${CMAKE_FIND_FRAMEWORK} CACHE STRING "" FORCE)
SET (CMAKE_FIND_FRAMEWORK "ONLY" CACHE STRING "" FORCE)
FIND_LIBRARY(GDAL_LIBRARY GDAL)
IF (GDAL_LIBRARY)
# they're all the same in a framework
SET (GDAL_INCLUDE_DIR ${GDAL_LIBRARY}/Headers CACHE PATH "Path to a file.")
# set GDAL_CONFIG to make later test happy, not used here, may not exist
SET (GDAL_CONFIG ${GDAL_LIBRARY}/unix/bin/gdal-config CACHE FILEPATH "Path to a program.")
# version in info.plist
GET_VERSION_PLIST (${GDAL_LIBRARY}/Resources/Info.plist GDAL_VERSION)
IF (NOT GDAL_VERSION)
MESSAGE (FATAL_ERROR "Could not determine GDAL version from framework.")
ENDIF (NOT 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}")
IF (GDAL_VERSION_MAJOR LESS 3)
MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 3.2 or higher.")
ENDIF (GDAL_VERSION_MAJOR LESS 3)
IF ( (GDAL_VERSION_MAJOR EQUAL 3) AND (GDAL_VERSION_MINOR LESS 2) )
MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 3.2 or higher.")
ENDIF( (GDAL_VERSION_MAJOR EQUAL 3) AND (GDAL_VERSION_MINOR LESS 2) )
ENDIF (GDAL_LIBRARY)
SET (CMAKE_FIND_FRAMEWORK ${CMAKE_FIND_FRAMEWORK_save} CACHE STRING "" FORCE)
ENDIF ()
ENDIF (APPLE)
IF(CYGWIN)
FIND_LIBRARY(GDAL_LIBRARY NAMES gdal PATHS /usr/lib /usr/local/lib)
ENDIF(CYGWIN)
IF (NOT GDAL_INCLUDE_DIR OR NOT GDAL_LIBRARY OR NOT GDAL_CONFIG)
# didn't find OS X framework, and was not set by user
SET(GDAL_CONFIG_PREFER_PATH "$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}
$ENV{LIB_DIR}/bin
/usr/local/bin/
/usr/bin/
)
# MESSAGE("DBG GDAL_CONFIG ${GDAL_CONFIG}")
IF (GDAL_CONFIG)
## extract gdal version
execute_process(COMMAND ${GDAL_CONFIG} --version
OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE GDAL_VERSION )
STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1" GDAL_VERSION_MAJOR "${GDAL_VERSION}")
STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\2" GDAL_VERSION_MINOR "${GDAL_VERSION}")
STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\3" GDAL_VERSION_MICRO "${GDAL_VERSION}")
# MESSAGE("DBG GDAL_VERSION ${GDAL_VERSION}")
# MESSAGE("DBG GDAL_VERSION_MAJOR ${GDAL_VERSION_MAJOR}")
# MESSAGE("DBG GDAL_VERSION_MINOR ${GDAL_VERSION_MINOR}")
# check for gdal version
# version 1.2.5 is known NOT to be supported (missing CPL_STDCALL macro)
# According to INSTALL, 2.1+ is required
IF (GDAL_VERSION_MAJOR LESS 3)
MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 3.0 or higher.")
ENDIF (GDAL_VERSION_MAJOR LESS 3)
#IF ( (GDAL_VERSION_MAJOR EQUAL 2) AND (GDAL_VERSION_MINOR LESS 1) )
# MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 2.1 or higher.")
#ENDIF( (GDAL_VERSION_MAJOR EQUAL 2) AND (GDAL_VERSION_MINOR LESS 1) )
IF ( (GDAL_VERSION_MAJOR EQUAL 3) AND (GDAL_VERSION_MINOR EQUAL 0) AND (GDAL_VERSION_MICRO LESS 3) )
MESSAGE (FATAL_ERROR "GDAL version is too old (${GDAL_VERSION}). Use 3.0.3 or higher.")
ENDIF( (GDAL_VERSION_MAJOR EQUAL 3) AND (GDAL_VERSION_MINOR EQUAL 0) AND (GDAL_VERSION_MICRO LESS 3) )
# set INCLUDE_DIR to prefix+include
execute_process(COMMAND ${GDAL_CONFIG} --prefix
OUTPUT_STRIP_TRAILING_WHITESPACE 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
execute_process(COMMAND ${GDAL_CONFIG} --libs
OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE GDAL_CONFIG_LIBS )
## split off the link dirs (for rpath)
## use regular expression to match wildcard equivalent "-L*<endchar>"
## with <endchar> is a space or a semicolon
STRING(REGEX MATCHALL "[-][L]([^ ;])+"
GDAL_LINK_DIRECTORIES_WITH_PREFIX
"${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)
IF (NOT GDAL_LIBRARY)
# work around empty GDAL_LIBRARY left by framework check
# while still preserving user setting if given
# ***FIXME*** need to improve framework check so below not needed
SET(GDAL_LIBRARY ${GDAL_LINK_DIRECTORIES}/lib${GDAL_LIB_NAME}.dylib CACHE STRING INTERNAL FORCE)
ENDIF (NOT GDAL_LIBRARY)
ELSE (APPLE)
FIND_LIBRARY(GDAL_LIBRARY NAMES ${GDAL_LIB_NAME} gdal PATHS ${GDAL_LINK_DIRECTORIES}/lib ${GDAL_LINK_DIRECTORIES})
ENDIF (APPLE)
ELSE(GDAL_CONFIG)
MESSAGE("FindGDAL.cmake: gdal-config not found. Please set it manually. GDAL_CONFIG=${GDAL_CONFIG}")
ENDIF(GDAL_CONFIG)
ENDIF (NOT GDAL_INCLUDE_DIR OR NOT GDAL_LIBRARY OR NOT 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)
FILE(READ ${GDAL_INCLUDE_DIR}/gdal_version.h gdal_version)
STRING(REGEX REPLACE "^.*GDAL_RELEASE_NAME +\"([^\"]+)\".*$" "\\1" GDAL_RELEASE_NAME "${gdal_version}")
MESSAGE(STATUS "Found GDAL: ${GDAL_LIBRARY} (${GDAL_RELEASE_NAME})")
ENDIF (NOT GDAL_FIND_QUIETLY)
add_library(GDAL::GDAL UNKNOWN IMPORTED)
target_link_libraries(GDAL::GDAL INTERFACE ${GDAL_LIBRARY})
target_include_directories(GDAL::GDAL INTERFACE ${GDAL_INCLUDE_DIR})
set_target_properties(GDAL::GDAL PROPERTIES IMPORTED_LOCATION ${GDAL_LIBRARY})
ELSE (GDAL_FOUND)
MESSAGE(GDAL_INCLUDE_DIR=${GDAL_INCLUDE_DIR})
MESSAGE(GDAL_LIBRARY=${GDAL_LIBRARY})
MESSAGE(FATAL_ERROR "Could not find GDAL")
ENDIF (GDAL_FOUND)
endif()
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