automoc: add special handling for including basename_p.moc, with test

Alex

Source/cmQtAutomoc.cxx

@@ -650,13 +650,38 @@ void cmQtAutomoc::ParseCppFile(const std::string& absFilename,
         {
         if (basename != scannedFileBasename)
           {
-          std::cerr << "AUTOMOC: error: " << absFilename << ": The file "
-                    << "includes the moc file \"" << currentMoc
-                    << "\", which seems to be the moc file from a different "
-                    << "source file. This is not supported. "
-                    << "Include \"" << scannedFileBasename << ".moc\" to run "
-                    << "moc on this source file." << std::endl;
-          ::exit(EXIT_FAILURE);
+          bool fail = true;
+          if ((this->QtMajorVersion == "4")
+                                    && (basename == scannedFileBasename +"_p"))
+            {
+            std::string mocSubDir = extractSubDir(absPath, currentMoc);
+            std::string headerToMoc = findMatchingHeader(
+                               absPath, mocSubDir, basename, headerExtensions);
+            if (!headerToMoc.empty())
+              {
+              // this is for KDE4 compatibility:
+              fail = false;
+              includedMocs[headerToMoc] = currentMoc;
+              std::cerr << "AUTOMOC: warning: " << absFilename << ": The file "
+                           "includes the moc file \"" << currentMoc <<
+                           "\" instead of \"moc_" << basename << ".cpp\". "
+                           "Running moc on "
+                        << "\"" << headerToMoc << "\" ! Better include \"moc_"
+                        << basename << ".cpp\" for a robust build."
+                        << std::endl;
+              }
+            }
+
+          if (fail)
+            {
+            std::cerr <<"AUTOMOC: error: " << absFilename << ": The file "
+                        "includes the moc file \"" << currentMoc <<
+                        "\", which seems to be the moc file from a different "
+                        "source file. This is not supported. "
+                        "Include \"" << scannedFileBasename << ".moc\" to run "
+                        "moc on this source file." << std::endl;
+            ::exit(EXIT_FAILURE);
+            }
           }
         includedMocs[absFilename] = currentMoc;
         dotMocIncluded = true;

Tests/QtAutomoc/CMakeLists.txt

@@ -13,7 +13,7 @@ add_definitions(-DFOO)
 # create an executable and a library target, both requiring automoc:
 add_library(codeeditorLib STATIC codeeditor.cpp)
 
-add_executable(foo main.cpp calwidget.cpp foo.cpp blub.cpp bar.cpp abc.cpp xyz.cpp)
+add_executable(foo main.cpp calwidget.cpp foo.cpp blub.cpp bar.cpp abc.cpp xyz.cpp yaf.cpp)
 
 set_target_properties(foo codeeditorLib PROPERTIES AUTOMOC TRUE)
 

Tests/QtAutomoc/main.cpp

@@ -47,6 +47,7 @@
 #include "sub/bar.h"
 #include "abc.h"
 #include "xyz.h"
+#include "yaf.h"
 
 int main(int argv, char **args)
 {
@@ -74,5 +75,8 @@ int main(int argv, char **args)
   Xyz xyz;
   xyz.doXyz();
 
+  Yaf yaf;
+  yaf.doYaf();
+
   return app.exec();
 }

Tests/QtAutomoc/yaf.cpp

@@ -0,0 +1,32 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2004-2011 Kitware, Inc.
+  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+
+
+#include "yaf.h"
+#include "yaf_p.h"
+
+#include <stdio.h>
+
+Yaf::Yaf()
+{
+}
+
+
+void Yaf::doYaf()
+{
+  YafP yafP;
+  yafP.doYafP();
+}
+
+// check that including a moc file from a private header the wrong way works:
+#include "yaf_p.moc"

Tests/QtAutomoc/yaf.h

@@ -0,0 +1,25 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2004-2011 Kitware, Inc.
+  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+
+#ifndef YAF_H
+#define YAF_H
+
+class Yaf
+{
+  public:
+    Yaf();
+  public:
+    void doYaf();
+};
+
+#endif

Tests/QtAutomoc/yaf_p.h

@@ -0,0 +1,30 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2004-2011 Kitware, Inc.
+  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+
+#ifndef YAF_P_H
+#define YAF_P_H
+
+#include <QObject>
+
+#include <stdio.h>
+
+class YafP : public QObject
+{
+  Q_OBJECT
+  public:
+    YafP() {}
+  public slots:
+    void doYafP() { printf("I am yet another file !\n"); }
+};
+
+#endif