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diff -ru xpdf-4.02.orig/cmake-config.txt xpdf-4.02/cmake-config.txt
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--- xpdf-4.02.orig/cmake-config.txt	2019-09-25 21:54:33.000000000 +0200
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+++ xpdf-4.02/cmake-config.txt	2020-07-03 18:17:21.191267235 +0200
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@@ -188,61 +188,6 @@
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-#--- look for Qt
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-find_package(Qt5Widgets QUIET)
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-if (Qt5Widgets_FOUND)
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-  find_package(Qt5Network)
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-  find_package(Qt5PrintSupport)
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-else ()
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-  find_package(Qt4 COMPONENTS QtCore QtGui QtNetwork REQUIRED)
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-endif ()
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-if(Qt5Widgets_FOUND)
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-  message(STATUS "Qt5 found")
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-  if (XPDFWIDGET_PRINTING)
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-    set(QT_INCLUDES "${Qt5Widgets_INCLUDE_DIRS} ${Qt5Network_INCLUDE_DIRS} ${Qt5PrintSupport_INCLUDE_DIRS}")
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-    set(QT_DEFINITIONS "${Qt5Widgets_DEFINITIONS} ${Qt5Network_DEFINITIONS} ${Qt5PrintSupport_DEFINITIONS}")
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-    set(QT_LIBRARIES Qt5::Widgets Qt5::Network Qt5::PrintSupport)
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-  else ()
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-    set(QT_INCLUDES "${Qt5Widgets_INCLUDE_DIRS} ${Qt5Network_INCLUDE_DIRS}")
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-    set(QT_DEFINITIONS "${Qt5Widgets_DEFINITIONS} ${Qt5Network_DEFINITIONS}")
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-    set(QT_LIBRARIES Qt5::Widgets Qt5::Network)
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-  endif ()
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-  if (XPDFWIDGET_PRINTING)
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-    if (APPLE)
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-      set(EXTRA_QT_LIBRARIES "-framework ApplicationServices")
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-    elseif (UNIX)
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-      find_package(Cups)
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-      if (CUPS_FOUND)
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-        set(EXTRA_QT_LIBRARIES ${CUPS_LIBRARIES})
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-      else ()
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-        set (XPDFWIDGET_PRINTING OFF)
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-      endif ()
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-    else ()
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-      set(EXTRA_QT_LIBRARIES "")
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-    endif ()
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-  endif ()
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-  # remove "-fPIE" here because we added "-fPIC" above
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-  string(REPLACE "-fPIE" "" QT_CFLAGS "${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
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-elseif(QT4_FOUND)
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-  message(STATUS "Qt4 found")
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-  if (XPDFWIDGET_PRINTING)
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-    if (APPLE)
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-      set(EXTRA_QT_LIBRARIES "-framework ApplicationServices")
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-    elseif (UNIX)
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-      find_package(Cups)
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-      if (CUPS_FOUND)
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-        set(EXTRA_QT_LIBRARIES ${CUPS_LIBRARIES})
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-      else ()
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-        set (XPDFWIDGET_PRINTING OFF)
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-      endif ()
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-    else ()
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-      set(EXTRA_QT_LIBRARIES "")
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-    endif ()
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-  endif ()
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-else()
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-  message(STATUS "No Qt library found")
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-endif()
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-
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 #--- look for libpaper
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 find_library(PAPER_LIBRARY
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              NAMES paper libpaper
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diff -ru xpdf-4.02.orig/CMakeLists.txt xpdf-4.02/CMakeLists.txt
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--- xpdf-4.02.orig/CMakeLists.txt	2019-09-25 21:54:33.000000000 +0200
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+++ xpdf-4.02/CMakeLists.txt	2020-07-03 18:16:19.639269162 +0200
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@@ -28,10 +28,6 @@
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   message(WARNING "Couldn't find libpng -- will not build pdftopng or pdftohtml.")
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 endif ()
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-if (NOT QT4_FOUND AND NOT Qt5Widgets_FOUND)
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-  message(WARNING "Couldn't find Qt4 or Qt5 -- will not build xpdf.")
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-endif ()
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-
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 if (NOT MULTITHREADED)
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   message(WARNING "Multithreading is disabled -- will not build xpdf.")
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 endif ()