Automoc: get include dirs without stripping implicit include dirs off

This should finally fix #13667 and #13762.
Instead of adding special handling to guess whether implicit include dirs
may have been removed, simply make it possible to query the include dirs
without removing the implicit ones.

Alex

Source/cmLocalGenerator.cxx

@@ -1329,7 +1329,9 @@ std::string cmLocalGenerator::GetIncludeFlags(
 void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
                                              cmGeneratorTarget* target,
                                              const char* lang,
-                                             const char *config)
+                                             const char *config,
+                                             bool stripImplicitInclDirs
+                                            )
 {
   // Need to decide whether to automatically include the source and
   // binary directories at the beginning of the include path.
@@ -1404,18 +1406,21 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
     return;
     }
 
-  // Load implicit include directories for this language.
-  std::string impDirVar = "CMAKE_";
-  impDirVar += lang;
-  impDirVar += "_IMPLICIT_INCLUDE_DIRECTORIES";
-  if(const char* value = this->Makefile->GetDefinition(impDirVar.c_str()))
+  if (stripImplicitInclDirs)
     {
-    std::vector<std::string> impDirVec;
-    cmSystemTools::ExpandListArgument(value, impDirVec);
-    for(std::vector<std::string>::const_iterator i = impDirVec.begin();
-        i != impDirVec.end(); ++i)
+    // Load implicit include directories for this language.
+    std::string impDirVar = "CMAKE_";
+    impDirVar += lang;
+    impDirVar += "_IMPLICIT_INCLUDE_DIRECTORIES";
+    if(const char* value = this->Makefile->GetDefinition(impDirVar.c_str()))
       {
-      emitted.insert(*i);
+      std::vector<std::string> impDirVec;
+      cmSystemTools::ExpandListArgument(value, impDirVec);
+      for(std::vector<std::string>::const_iterator i = impDirVec.begin();
+          i != impDirVec.end(); ++i)
+        {
+        emitted.insert(*i);
+        }
       }
     }
 

Source/cmLocalGenerator.h

@@ -212,7 +212,8 @@ public:
   /** Get the include flags for the current makefile and language.  */
   void GetIncludeDirectories(std::vector<std::string>& dirs,
                              cmGeneratorTarget* target,
-                             const char* lang = "C", const char *config = 0);
+                             const char* lang = "C", const char *config = 0,
+                             bool stripImplicitInclDirs = true);
 
   /** Compute the language used to compile the given source file.  */
   const char* GetSourceFileLanguage(const cmSourceFile& source);

Source/cmQtAutomoc.cxx

@@ -212,36 +212,11 @@ void cmQtAutomoc::SetupAutomocTarget(cmTarget* target)
     }
 
 
-  const char* qtIncDir = 0;
-  const char* qtCoreIncDir = 0;
-
-  // check whether ${QT_INCLUDE_DIR} is part of the implicit include dirs,
-  // see http://public.kitware.com/Bug/view.php?id=13667
-  bool qtIncludeDirMayHaveBeenRemoved = false;
-  if (makefile->IsSet("QT_INCLUDE_DIR"))
-    {
-    qtIncDir = makefile->GetDefinition("QT_INCLUDE_DIR");
-    std::string s =
-         makefile->GetSafeDefinition("CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES");
-    std::vector<std::string> implIncDirs;
-    cmSystemTools::ExpandListArgument(s, implIncDirs);
-    if (std::find(implIncDirs.begin(), implIncDirs.end(),std::string(qtIncDir))
-                                                          != implIncDirs.end())
-      {
-      qtIncludeDirMayHaveBeenRemoved = true;
-      if (makefile->IsSet("QT_QTCORE_INCLUDE_DIR"))
-        {
-        qtCoreIncDir = makefile->GetDefinition("QT_QTCORE_INCLUDE_DIR");
-        }
-      }
-    }
-
-  bool haveQtCoreIncDir = false;
-  bool haveQtIncDir = false;
-
   std::vector<std::string> includeDirs;
   cmGeneratorTarget gtgt(target);
-  localGen->GetIncludeDirectories(includeDirs, &gtgt, "CXX");
+  // Get the include dirs for this target, without stripping the implicit
+  // include dirs off, see http://public.kitware.com/Bug/view.php?id=13667
+  localGen->GetIncludeDirectories(includeDirs, &gtgt, "CXX", 0, false);
   std::string _moc_incs = "";
   const char* sep = "";
   for(std::vector<std::string>::const_iterator incDirIt = includeDirs.begin();
@@ -251,37 +226,6 @@ void cmQtAutomoc::SetupAutomocTarget(cmTarget* target)
     _moc_incs += sep;
     sep = ";";
     _moc_incs += *incDirIt;
-
-    if (qtIncludeDirMayHaveBeenRemoved && qtCoreIncDir && qtIncDir) // #13667
-      {
-      if (*incDirIt == qtIncDir)
-        {
-        haveQtIncDir = true;
-        qtIncludeDirMayHaveBeenRemoved = false; // it's here, i.e. not removed
-        }
-      if (*incDirIt == qtCoreIncDir)
-        {
-        haveQtCoreIncDir = true;
-        }
-      }
-    }
-
-  // Some projects (kdelibs, phonon) query the compiler for its default
-  // include search dirs, and add those to
-  // CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES.
-  // These may include e.g./usr/lib/qt/include . This is typically also part
-  // of ${QT_INCLUDES}. If this directory is then contained in the implicit
-  // include dirs, it is removed from the include dirs returned from the
-  // target above. So we add ${QT_INCLUDE_DIR} manually for moc if we detected
-  // that ${QT_QTCORE_INCLUDE_DIR} is among the include dirs (there shouldn't
-  // be a way to use Qt4 without using ${QT_QTCORE_INCLUDE_DIR} I think.
-  // See #13646 and #13667.
-  if (qtIncludeDirMayHaveBeenRemoved && qtCoreIncDir && qtIncDir
-      && (haveQtCoreIncDir == true) && (haveQtIncDir == false))
-    {
-    _moc_incs += sep;
-    sep = ";";
-    _moc_incs += qtIncDir;
     }
 
   const char* tmp = target->GetProperty("COMPILE_DEFINITIONS");