diff options
| -rw-r--r-- | modules/FindExiv2.cmake | 137 |
1 files changed, 62 insertions, 75 deletions
diff --git a/modules/FindExiv2.cmake b/modules/FindExiv2.cmake index bf8220cc..f929269d 100644 --- a/modules/FindExiv2.cmake +++ b/modules/FindExiv2.cmake @@ -1,8 +1,8 @@ # - Try to find the Exiv2 library # -# EXIV2_MIN_VERSION - You can set this variable to the minimum version you need +# EXIV2_MIN_VERSION - You can set this variable to the minimum version you need # before doing FIND_PACKAGE(Exiv2). The default is 0.12. -# +# # Once done this will define # # EXIV2_FOUND - system has libexiv2 @@ -10,84 +10,71 @@ # EXIV2_LIBRARIES - Link these to use libexiv2 # EXIV2_DEFINITIONS - Compiler switches required for using libexiv2 # +# The minimum required version of Exiv2 can be specified using the +# standard syntax, e.g. find_package(Exiv2 0.17) +# +# For compatiblity, also the variable EXIV2_MIN_VERSION can be set to the minimum version +# you need before doing FIND_PACKAGE(Exiv2). The default is 0.12. +# Copyright (c) 2010, Alexander Neundorf, <neundorf@kde.org> # Copyright (c) 2008, Gilles Caulier, <caulier.gilles@gmail.com> # # Redistribution and use is allowed according to the terms of the BSD license. # For details see the accompanying COPYING-CMAKE-SCRIPTS file. +# Support EXIV2_MIN_VERSION for compatibility: +if(NOT Exiv2_FIND_VERSION) + set(Exiv2_FIND_VERSION "${EXIV2_MIN_VERSION}") +endif(NOT Exiv2_FIND_VERSION) + +# the minimum version of exiv2 we require +if(NOT Exiv2_FIND_VERSION) + set(Exiv2_FIND_VERSION "0.12") +endif(NOT Exiv2_FIND_VERSION) + + +if (NOT WIN32) + # use pkg-config to get the directories and then use these values + # in the FIND_PATH() and FIND_LIBRARY() calls + find_package(PkgConfig) + pkg_check_modules(PC_EXIV2 QUIET exiv2) + set(EXIV2_DEFINITIONS ${PC_EXIV2_CFLAGS_OTHER}) +endif (NOT WIN32) + + +find_path(EXIV2_INCLUDE_DIR NAMES exiv2/exif.hpp + HINTS + ${PC_EXIV2_INCLUDEDIR} + ${PC_EXIV2_INCLUDE_DIRS} + ) + +find_library(EXIV2_LIBRARY NAMES exiv2 libexiv2 + HINTS + ${PC_EXIV2_LIBDIR} + ${PC_EXIV2_LIBRARY_DIRS} + ) + + +# Get the version number from exiv2/version.hpp and store it in the cache: +if(EXIV2_INCLUDE_DIR AND NOT EXIV2_VERSION) + file(READ ${EXIV2_INCLUDE_DIR}/exiv2/version.hpp EXIV2_VERSION_CONTENT) + string(REGEX MATCH "#define EXIV2_MAJOR_VERSION +\\( *([0-9]+) *\\)" _dummy "${EXIV2_VERSION_CONTENT}") + set(EXIV2_VERSION_MAJOR "${CMAKE_MATCH_1}") + + string(REGEX MATCH "#define EXIV2_MINOR_VERSION +\\( *([0-9]+) *\\)" _dummy "${EXIV2_VERSION_CONTENT}") + set(EXIV2_VERSION_MINOR "${CMAKE_MATCH_1}") + + string(REGEX MATCH "#define EXIV2_PATCH_VERSION +\\( *([0-9]+) *\\)" _dummy "${EXIV2_VERSION_CONTENT}") + set(EXIV2_VERSION_PATCH "${CMAKE_MATCH_1}") + + set(EXIV2_VERSION "${EXIV2_VERSION_MAJOR}.${EXIV2_VERSION_MINOR}.${EXIV2_VERSION_PATCH}" CACHE STRING "Version number of Exiv2" FORCE) +endif(EXIV2_INCLUDE_DIR AND NOT EXIV2_VERSION) + +set(EXIV2_LIBRARIES "${EXIV2_LIBRARY}") + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(Exiv2 REQUIRED_VARS EXIV2_LIBRARY EXIV2_INCLUDE_DIR + VERSION_VAR EXIV2_VERSION) -if (EXIV2_INCLUDE_DIR AND EXIV2_LIBRARIES) - - # in cache already - set(EXIV2_FOUND TRUE) - -else (EXIV2_INCLUDE_DIR AND EXIV2_LIBRARIES) - if (NOT WIN32) - # use pkg-config to get the directories and then use these values - # in the FIND_PATH() and FIND_LIBRARY() calls - include(UsePkgConfig) - - if(NOT EXIV2_MIN_VERSION) - set(EXIV2_MIN_VERSION "0.12") - endif(NOT EXIV2_MIN_VERSION) - - pkgconfig(exiv2 _EXIV2IncDir _EXIV2LinkDir _EXIV2LinkFlags _EXIV2Cflags) - - if(_EXIV2LinkFlags) - # query pkg-config asking for a Exiv2 >= 0.12 - exec_program(${PKGCONFIG_EXECUTABLE} ARGS --atleast-version=${EXIV2_MIN_VERSION} exiv2 RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull ) - if(_return_VALUE STREQUAL "0") - message(STATUS "Found Exiv2 release >= ${EXIV2_MIN_VERSION}") - set(EXIV2_VERSION_GOOD_FOUND TRUE) - else(_return_VALUE STREQUAL "0") - message(STATUS "Found Exiv2 release < ${EXIV2_MIN_VERSION}") - endif(_return_VALUE STREQUAL "0") - else(_EXIV2LinkFlags) - set(EXIV2_FOUND FALSE) - set(EXIV2_VERSION_GOOD_FOUND FALSE) - message(STATUS "Cannot find Exiv2 library!") - endif(_EXIV2LinkFlags) - - else(NOT WIN32) - #Better check - set(EXIV2_VERSION_GOOD_FOUND TRUE) - endif (NOT WIN32) - - if(EXIV2_VERSION_GOOD_FOUND) - set(EXIV2_DEFINITIONS ${_EXIV2Cflags}) - - find_path(EXIV2_INCLUDE_DIR NAMES exiv2/exif.hpp - HINTS - ${_EXIV2IncDir} - ) - - find_library(EXIV2_LIBRARIES NAMES exiv2 libexiv2 - HINTS - ${_EXIV2LinkDir} - ) - - if (EXIV2_INCLUDE_DIR AND EXIV2_LIBRARIES) - set(EXIV2_FOUND TRUE) - # TODO version check is missing - endif (EXIV2_INCLUDE_DIR AND EXIV2_LIBRARIES) - endif(EXIV2_VERSION_GOOD_FOUND) - if (EXIV2_FOUND) - if (NOT Exiv2_FIND_QUIETLY) - message(STATUS "Found Exiv2: ${EXIV2_LIBRARIES}") - endif (NOT Exiv2_FIND_QUIETLY) - else (EXIV2_FOUND) - if (Exiv2_FIND_REQUIRED) - if (NOT EXIV2_INCLUDE_DIR) - message(FATAL_ERROR "Could NOT find Exiv2 header files") - endif (NOT EXIV2_INCLUDE_DIR) - if (NOT EXIV2_LIBRARIES) - message(FATAL_ERROR "Could NOT find Exiv2 library") - endif (NOT EXIV2_LIBRARIES) - endif (Exiv2_FIND_REQUIRED) - endif (EXIV2_FOUND) - - mark_as_advanced(EXIV2_INCLUDE_DIR EXIV2_LIBRARIES) - -endif (EXIV2_INCLUDE_DIR AND EXIV2_LIBRARIES) +mark_as_advanced(EXIV2_INCLUDE_DIR EXIV2_LIBRARY) |