add QT_IMPORTS_DIR (directory where imports are installed, at the

moment they are all QML plugins) to FindQt4.cmake
this change was done to upstream CMake before. this is a backport of the
commit
2dae2f1a0b24c674b651fd6edf79c4b51177b4d6
in git.cmake.org maintaining the difrence with the upstream patch
minimal

CCMAIL:neundorf@kde.org

svn path=/trunk/KDE/kdelibs/; revision=1184513

1 files changed, 36 insertions, 37 deletions

diff --git a/modules/FindQt4.cmake b/modules/FindQt4.cmake
index a4908ebb..bbc96040 100644
--- a/modules/FindQt4.cmake
+++ b/modules/FindQt4.cmake
@@ -255,6 +255,7 @@
 #  QT_LIBRARY_DIR              Path to "lib" of Qt4
 #  QT_PLUGINS_DIR              Path to "plugins" for Qt4
 #  QT_TRANSLATIONS_DIR         Path to "translations" of Qt4
+#  QT_IMPORTS_DIR              Path to "imports" of Qt4
 #  QT_DOC_DIR                  Path to "doc" of Qt4
 #  QT_MKSPECS_DIR              Path to "mkspecs" of Qt4
 #
@@ -377,6 +378,14 @@ IF(QT_QT_LIBRARY)
   ENDIF(Qt4_FIND_REQUIRED)
 ENDIF(QT_QT_LIBRARY)
 
+function(_QT4_QUERY_QMAKE VAR RESULT)
+  exec_program(${QT_QMAKE_EXECUTABLE} ARGS "-query ${VAR}" RETURN_VALUE return_code OUTPUT_VARIABLE output )
+  if(NOT return_code)
+    file(TO_CMAKE_PATH "${output}" output)
+    set(${RESULT} ${output} PARENT_SCOPE)
+  endif(NOT return_code)
+endfunction(_QT4_QUERY_QMAKE)
+
 
 IF (QT4_QMAKE_FOUND  AND  Qt4::QtCore)
    # Check already done in this cmake run, nothing more to do
@@ -455,7 +464,7 @@ IF (QT_QMAKE_EXECUTABLE)
 
   SET(QT4_QMAKE_FOUND FALSE)
   
-  EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE} ARGS "-query QT_VERSION" OUTPUT_VARIABLE QTVERSION)
+  _qt4_query_qmake(QT_VERSION QTVERSION)
 
   # check for qt3 qmake and then try and find qmake4 or qmake-qt4 in the path
   IF("${QTVERSION}" MATCHES "Unknown")
@@ -467,8 +476,7 @@ IF (QT_QMAKE_EXECUTABLE)
       DOC "The qmake executable for the Qt installation to use"
       )
     IF(QT_QMAKE_EXECUTABLE)
-      EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE} 
-        ARGS "-query QT_VERSION" OUTPUT_VARIABLE QTVERSION)
+      _qt4_query_qmake(QT_VERSION QTVERSION)
     ENDIF(QT_QMAKE_EXECUTABLE)
   ENDIF("${QTVERSION}" MATCHES "Unknown")
 
@@ -550,11 +558,7 @@ IF (QT4_QMAKE_FOUND)
   # ask qmake for the library dir
   # Set QT_LIBRARY_DIR
   IF (NOT QT_LIBRARY_DIR OR QT_QMAKE_CHANGED)
-    EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-      ARGS "-query QT_INSTALL_LIBS"
-      OUTPUT_VARIABLE QT_LIBRARY_DIR_TMP )
-    # make sure we have / and not \ as qmake gives on windows
-    FILE(TO_CMAKE_PATH "${QT_LIBRARY_DIR_TMP}" QT_LIBRARY_DIR_TMP)
+    _qt4_query_qmake(QT_INSTALL_LIBS QT_LIBRARY_DIR_TMP)
     IF(EXISTS "${QT_LIBRARY_DIR_TMP}")
       SET(QT_LIBRARY_DIR ${QT_LIBRARY_DIR_TMP} CACHE PATH "Qt library dir" FORCE)
     ELSE(EXISTS "${QT_LIBRARY_DIR_TMP}")
@@ -577,40 +581,26 @@ IF (QT4_QMAKE_FOUND)
   
   # ask qmake for the binary dir
   IF (QT_LIBRARY_DIR AND NOT QT_BINARY_DIR  OR  QT_QMAKE_CHANGED)
-     EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE}
-       ARGS "-query QT_INSTALL_BINS"
-       OUTPUT_VARIABLE qt_bins )
-     # make sure we have / and not \ as qmake gives on windows
-     FILE(TO_CMAKE_PATH "${qt_bins}" qt_bins)
-     SET(QT_BINARY_DIR ${qt_bins} CACHE INTERNAL "" FORCE)
+      _qt4_query_qmake(QT_INSTALL_BINS qt_bins)
+      SET(QT_BINARY_DIR ${qt_bins} CACHE INTERNAL "" FORCE)
   ENDIF (QT_LIBRARY_DIR AND NOT QT_BINARY_DIR  OR  QT_QMAKE_CHANGED)
 
   # ask qmake for the include dir
   IF (QT_LIBRARY_DIR AND NOT QT_HEADERS_DIR  OR  QT_QMAKE_CHANGED)
-      EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-        ARGS "-query QT_INSTALL_HEADERS" 
-        OUTPUT_VARIABLE qt_headers ) 
-      # make sure we have / and not \ as qmake gives on windows
-      FILE(TO_CMAKE_PATH "${qt_headers}" qt_headers)
+      _qt4_query_qmake(QT_INSTALL_HEADERS qt_headers)
       SET(QT_HEADERS_DIR ${qt_headers} CACHE INTERNAL "" FORCE)
   ENDIF (QT_LIBRARY_DIR AND NOT QT_HEADERS_DIR  OR  QT_QMAKE_CHANGED)
 
 
   # ask qmake for the documentation directory
   IF (QT_LIBRARY_DIR AND NOT QT_DOC_DIR  OR  QT_QMAKE_CHANGED)
-    EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-      ARGS "-query QT_INSTALL_DOCS"
-      OUTPUT_VARIABLE qt_doc_dir )
-    # make sure we have / and not \ as qmake gives on windows
-    FILE(TO_CMAKE_PATH "${qt_doc_dir}" qt_doc_dir)
+    _qt4_query_qmake(QT_INSTALL_DOCS qt_doc_dir)
     SET(QT_DOC_DIR ${qt_doc_dir} CACHE PATH "The location of the Qt docs" FORCE)
   ENDIF (QT_LIBRARY_DIR AND NOT QT_DOC_DIR  OR  QT_QMAKE_CHANGED)
 
   # ask qmake for the mkspecs directory
   IF (QT_LIBRARY_DIR AND NOT QT_MKSPECS_DIR  OR  QT_QMAKE_CHANGED)
-    EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-      ARGS "-query QMAKE_MKSPECS"
-      OUTPUT_VARIABLE qt_mkspecs_dirs )
+    _qt4_query_qmake(QMAKE_MKSPECS qt_mkspecs_dirs)
     # do not replace : on windows as it might be a drive letter
     # and windows should already use ; as a separator
     IF(UNIX)
@@ -624,24 +614,33 @@ IF (QT4_QMAKE_FOUND)
 
   # ask qmake for the plugins directory
   IF (QT_LIBRARY_DIR AND NOT QT_PLUGINS_DIR  OR  QT_QMAKE_CHANGED)
-    EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-      ARGS "-query QT_INSTALL_PLUGINS"
-      OUTPUT_VARIABLE qt_plugins_dir )
-    # make sure we have / and not \ as qmake gives on windows
-    FILE(TO_CMAKE_PATH "${qt_plugins_dir}" qt_plugins_dir)
+    _qt4_query_qmake(QT_INSTALL_PLUGINS qt_plugins_dir)
     SET(QT_PLUGINS_DIR ${qt_plugins_dir} CACHE PATH "The location of the Qt plugins" FORCE)
   ENDIF (QT_LIBRARY_DIR AND NOT QT_PLUGINS_DIR  OR  QT_QMAKE_CHANGED)
 
   # ask qmake for the translations directory
   IF (QT_LIBRARY_DIR AND NOT QT_TRANSLATIONS_DIR  OR  QT_QMAKE_CHANGED)
-    EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE}
-      ARGS "-query QT_INSTALL_TRANSLATIONS"
-      OUTPUT_VARIABLE qt_translations_dir )
-    # make sure we have / and not \ as qmake gives on windows
-    FILE(TO_CMAKE_PATH "${qt_translations_dir}" qt_translations_dir)
+    _qt4_query_qmake(QT_INSTALL_TRANSLATIONS qt_translations_dir)
     SET(QT_TRANSLATIONS_DIR ${qt_translations_dir} CACHE PATH "The location of the Qt translations" FORCE)
   ENDIF (QT_LIBRARY_DIR AND NOT QT_TRANSLATIONS_DIR  OR  QT_QMAKE_CHANGED)
 
+  # ask qmake for the imports directory
+  IF (QT_LIBRARY_DIR AND NOT QT_IMPORTS_DIR OR QT_QMAKE_CHANGED)
+    _qt4_query_qmake(QT_INSTALL_IMPORTS qt_imports_dir)
+    if(qt_imports_dir)
+      SET(QT_IMPORTS_DIR NOTFOUND)
+      foreach(qt_cross_path ${CMAKE_FIND_ROOT_PATH})
+        set(qt_cross_paths ${qt_cross_paths} "${qt_cross_path}/imports")
+      endforeach(qt_cross_path)
+      FIND_PATH(QT_IMPORTS_DIR NAMES Qt
+        HINTS ${qt_cross_paths} ${qt_imports_dir}
+        DOC "The location of the Qt imports"
+        NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH NO_SYSTEM_ENVIRONMENT_PATH
+        NO_CMAKE_SYSTEM_PATH)
+      mark_as_advanced(QT_IMPORTS_DIR)
+    endif(qt_imports_dir)
+  ENDIF (QT_LIBRARY_DIR AND NOT QT_IMPORTS_DIR  OR  QT_QMAKE_CHANGED)
+
   # Make variables changeble to the advanced user
   MARK_AS_ADVANCED( QT_LIBRARY_DIR QT_DOC_DIR QT_MKSPECS_DIR
                     QT_PLUGINS_DIR QT_TRANSLATIONS_DIR)