cmake/modules/FindPoppler.cmake

   1 # - Try to find the poppler PDF library
   2 # Once done this will define
   3 #
   4 #  POPPLER_FOUND - system has poppler
   5 #  POPPLER_INCLUDE_DIR - the poppler include directory
   6 #  POPPLER_LIBRARY - Link this to use poppler
   7 #
   8
   9 # Copyright (c) 2006-2007, Pino Toscano, <pino@kde.org>
  10 #
  11 # Redistribution and use is allowed according to the terms of the BSD license.
  12 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
  13
  14 if(POPPLER_INCLUDE_DIR AND POPPLER_LIBRARY)
  15
  16   # in cache already
  17   set(POPPLER_FOUND TRUE)
  18
  19 else(POPPLER_INCLUDE_DIR AND POPPLER_LIBRARY)
  20
  21 # use pkg-config to get the directories and then use these values
  22 # in the FIND_PATH() and FIND_LIBRARY() calls
  23 INCLUDE(UsePkgConfig)
  24
  25 PKGCONFIG(poppler-qt4 _PopplerIncDir _PopplerLinkDir _PopplerLinkFlags _PopplerCflags)
  26
  27 if(_PopplerLinkFlags)
  28
  29   # query pkg-config asking for a poppler-qt4 >= 0.5.4
  30   EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS --atleast-version=0.5.4 poppler-qt4 RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull )
  31   if(_return_VALUE STREQUAL "0")
  32     set(POPPLER_FOUND TRUE)
  33   endif(_return_VALUE STREQUAL "0")
  34 else(_PopplerLinkFlags)
  35   # try to find poppler without pkgconfig
  36   find_library( LIBPOPPLER poppler )
  37   find_library( LIBPOPPLER_QT4 poppler-qt4 )
  38   find_path( INCLUDEPOPPLER_QT4 poppler/qt4/poppler-qt4.h )
  39   find_path( INCLUDEPOPPLER poppler-qt4.h PATHS ${INCLUDEPOPPLER_QT4}/poppler/qt4 )
  40   if( LIBPOPPLER_QT4 AND LIBPOPPLER AND INCLUDEPOPPLER )
  41     set( POPPLER_FOUND TRUE )
  42     set(_PopplerLinkFlags ${LIBPOPPLER} ${LIBPOPPLER_QT4})
  43     set(POPPLER_INCLUDE_DIR ${INCLUDEPOPPLER})
  44   endif( LIBPOPPLER_QT4 AND LIBPOPPLER AND INCLUDEPOPPLER )
  45 endif(_PopplerLinkFlags)
  46
  47 if (POPPLER_FOUND)
  48   set(POPPLER_LIBRARY ${_PopplerLinkFlags})
  49
  50   # the cflags for poppler-qt4 can contain more than one include path
  51   separate_arguments(_PopplerCflags)
  52   foreach(_includedir ${_PopplerCflags})
  53     string(REGEX REPLACE "-I(.+)" "\\1" _includedir "${_includedir}")
  54     set(POPPLER_INCLUDE_DIR ${POPPLER_INCLUDE_DIR} ${_includedir})
  55   endforeach(_includedir)
  56
  57   # check whether we're using poppler 0.6
  58   set(CMAKE_REQUIRED_INCLUDES ${POPPLER_INCLUDE_DIR} ${QT_INCLUDE_DIR})
  59   set(CMAKE_REQUIRED_LIBRARIES ${POPPLER_LIBRARY} ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} ${QT_QTXML_LIBRARY})
  60 check_cxx_source_compiles("
  61 #include <poppler-qt4.h>
  62
  63 int main()
  64 {
  65   Poppler::SoundObject * so = 0;
  66   (void)so;
  67
  68   return 0;
  69 }
  70 " HAVE_POPPLER_0_6 )
  71   set(CMAKE_REQUIRED_INCLUDES)
  72   set(CMAKE_REQUIRED_LIBRARIES)
  73   if (HAVE_POPPLER_0_6)
  74     set(poppler06Message "yes")
  75   else (HAVE_POPPLER_0_6)
  76     set(poppler06Message "no")
  77   endif (HAVE_POPPLER_0_6)
  78   if (NOT Poppler_FIND_QUIETLY)
  79     message(STATUS "Found Poppler-Qt4: ${POPPLER_LIBRARY}, 0.6.x? ${poppler06Message}")
  80   endif (NOT Poppler_FIND_QUIETLY)
  81 else (POPPLER_FOUND)
  82   if (Poppler_FIND_REQUIRED)
  83     message(FATAL_ERROR "Could NOT find Poppler-Qt4")
  84   endif (Poppler_FIND_REQUIRED)
  85   message(STATUS "Could not find OPTIONAL package Poppler-Qt4")
  86 endif (POPPLER_FOUND)
  87
  88 # ensure that they are cached
  89 set(POPPLER_INCLUDE_DIR ${POPPLER_INCLUDE_DIR} CACHE INTERNAL "The Poppler-Qt4 include path")
  90 set(POPPLER_LIBRARY ${POPPLER_LIBRARY} CACHE INTERNAL "The Poppler-Qt4 library")
  91 set(HAVE_POPPLER_0_6 ${HAVE_POPPLER_0_6} CACHE INTERNAL "Whether the version of Poppler-Qt4 is 0.6")
  92
  93 endif(POPPLER_INCLUDE_DIR AND POPPLER_LIBRARY)