Change to use FindX11.cmake. Should fix #9929.

Modules/FindQt4.cmake

@@ -392,7 +392,7 @@ GET_FILENAME_COMPONENT(qt_install_version "[HKEY_CURRENT_USER\\Software\\trollte
 # check for qmake
 # Debian uses qmake-qt4
 # macports' Qt uses qmake-mac
-FIND_PROGRAM(QT_QMAKE_EXECUTABLE NAMES qmake4 qmake-qt4 qmake-mac qmake PATHS
+FIND_PROGRAM(QT_QMAKE_EXECUTABLE NAMES qmake qmake4 qmake-qt4 qmake-mac PATHS
   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\4.0.0;InstallDir]/bin"
   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Versions\\4.0.0;InstallDir]/bin"
   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Versions\\${qt_install_version};InstallDir]/bin"

Modules/Qt4ConfigDependentSettings.cmake

@@ -81,80 +81,63 @@ ENDIF(QT_QCONFIG MATCHES "system-png")
 
 # for X11, get X11 library directory
 IF(Q_WS_X11)
-  QT_QUERY_QMAKE(QMAKE_LIBDIR_X11 "QMAKE_LIBDIR_X11")
+  FIND_PACKAGE(X11)
 ENDIF(Q_WS_X11)
 
 
 ## X11 SM
 IF(QT_QCONFIG MATCHES "x11sm")
-  # ask qmake where the x11 libs are
-  FIND_LIBRARY(QT_X11_SM_LIBRARY NAMES SM PATHS ${QMAKE_LIBDIR_X11})
-  FIND_LIBRARY(QT_X11_ICE_LIBRARY NAMES ICE PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_X11_SM_LIBRARY)
-  MARK_AS_ADVANCED(QT_X11_ICE_LIBRARY)
-  IF(QT_X11_SM_LIBRARY AND QT_X11_ICE_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_X11_SM_LIBRARY} ${QT_X11_ICE_LIBRARY})
-  ENDIF(QT_X11_SM_LIBRARY AND QT_X11_ICE_LIBRARY)
+  IF(X11_SM_LIB AND X11_ICE_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_SM_LIB} ${X11_ICE_LIB})
+  ENDIF(X11_SM_LIB AND X11_ICE_LIB)
 ENDIF(QT_QCONFIG MATCHES "x11sm")
 
 
 ## Xi
 IF(QT_QCONFIG MATCHES "tablet")
-  FIND_LIBRARY(QT_XI_LIBRARY NAMES Xi PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XI_LIBRARY)
-  IF(QT_XI_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XI_LIBRARY})
-  ENDIF(QT_XI_LIBRARY)
+  IF(X11_Xi_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xi_LIB})
+  ENDIF(X11_Xi_LIB)
 ENDIF(QT_QCONFIG MATCHES "tablet")
 
 
 ## Xrender
 IF(QT_QCONFIG MATCHES "xrender")
-  FIND_LIBRARY(QT_XRENDER_LIBRARY NAMES Xrender PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XRENDER_LIBRARY)
-  IF(QT_XRENDER_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XRENDER_LIBRARY})
-  ENDIF(QT_XRENDER_LIBRARY)
+  IF(X11_Xrender_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xrender_LIB})
+  ENDIF(X11_Xrender_LIB)
 ENDIF(QT_QCONFIG MATCHES "xrender")
 
 
 ## Xrandr
 IF(QT_QCONFIG MATCHES "xrandr")
-  FIND_LIBRARY(QT_XRANDR_LIBRARY NAMES Xrandr PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XRANDR_LIBRARY)
-  IF(QT_XRANDR_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XRANDR_LIBRARY})
-  ENDIF(QT_XRANDR_LIBRARY)
+  IF(X11_Xrandr_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xrandr_LIB})
+  ENDIF(X11_Xrandr_LIB)
 ENDIF(QT_QCONFIG MATCHES "xrandr")
 
 
 ## Xcursor
 IF(QT_QCONFIG MATCHES "xcursor")
-  FIND_LIBRARY(QT_XCURSOR_LIBRARY NAMES Xcursor PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XCURSOR_LIBRARY)
-  IF(QT_XCURSOR_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XCURSOR_LIBRARY})
-  ENDIF(QT_XCURSOR_LIBRARY)
+  IF(X11_Xcursor_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xcursor_LIB})
+  ENDIF(X11_Xcursor_LIB)
 ENDIF(QT_QCONFIG MATCHES "xcursor")
 
 
 ## Xinerama
 IF(QT_QCONFIG MATCHES "xinerama")
-  FIND_LIBRARY(QT_XINERAMA_LIBRARY NAMES Xinerama PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XINERAMA_LIBRARY)
-  IF(QT_XINERAMA_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XINERAMA_LIBRARY})
-  ENDIF(QT_XINERAMA_LIBRARY)
+  IF(X11_Xinerama_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xinerama_LIB})
+  ENDIF(X11_Xinerama_LIB)
 ENDIF(QT_QCONFIG MATCHES "xinerama")
 
 
 ## Xfixes
 IF(QT_QCONFIG MATCHES "xfixes")
-  FIND_LIBRARY(QT_XFIXES_LIBRARY NAMES Xfixes PATHS ${QMAKE_LIBDIR_X11})
-  MARK_AS_ADVANCED(QT_XFIXES_LIBRARY)
-  IF(QT_XFIXES_LIBRARY)
-    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XFIXES_LIBRARY})
-  ENDIF(QT_XFIXES_LIBRARY)
+  IF(X11_Xfixes_LIB)
+    SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xfixes_LIB})
+  ENDIF(X11_Xfixes_LIB)
 ENDIF(QT_QCONFIG MATCHES "xfixes")
 
 
@@ -315,24 +298,13 @@ ENDIF(QT_QCONFIG MATCHES "clock-monotonic")
 
 
 IF(Q_WS_X11)
-  # X11 libraries Qt absolutely depends on
-  QT_QUERY_QMAKE(QT_LIBS_X11 "QMAKE_LIBS_X11")
-  SEPARATE_ARGUMENTS(QT_LIBS_X11)
-  FOREACH(QT_X11_LIB ${QT_LIBS_X11})
-    STRING(REGEX REPLACE "-l" "" QT_X11_LIB "${QT_X11_LIB}")
-    SET(QT_TMP_STR "QT_X11_${QT_X11_LIB}_LIBRARY")
-    FIND_LIBRARY(${QT_TMP_STR} NAMES "${QT_X11_LIB}" PATHS ${QMAKE_LIBDIR_X11})
-    MARK_AS_ADVANCED(${QT_TMP_STR})
-    IF(${QT_TMP_STR})
-      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${${QT_TMP_STR}})
-    ENDIF(${QT_TMP_STR})
-  ENDFOREACH(QT_X11_LIB)
+  # X11 libraries Qt always depends on
+  SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${X11_Xext_LIB} ${X11_X11_LIB})
 
   QT_QUERY_QMAKE(QT_LIBS_THREAD "QMAKE_LIBS_THREAD")
   SET(QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES} ${QT_LIBS_THREAD})
 
-  QT_QUERY_QMAKE(QMAKE_LIBS_DYNLOAD "QMAKE_LIBS_DYNLOAD")
-  SET (QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES} ${QMAKE_LIBS_DYNLOAD})
+  SET (QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES} ${CMAKE_DL_LIBS})
 
 ENDIF(Q_WS_X11)