QtAutogen: Fix AUTOGEN depends on custom command output with VS.

Visual Studio is handled as a special case for autogen depends. However,
the special handling works only for target dependencies, not file
dependencies output by a custom command.

Use a PRE_BUILD step only if all depends are targets.

3 files changed, 24 insertions, 3 deletions

diff --git a/Tests/QtAutogen/CMakeLists.txt b/Tests/QtAutogen/CMakeLists.txt
index 4da125f..0821b45 100644
--- a/Tests/QtAutogen/CMakeLists.txt
+++ b/Tests/QtAutogen/CMakeLists.txt
@@ -58,11 +58,17 @@ add_custom_target(generate_moc_input
   COMMAND ${CMAKE_COMMAND} -E rename "${CMAKE_CURRENT_BINARY_DIR}/myinterface.h.in" "${CMAKE_CURRENT_BINARY_DIR}/myinterface.h"
 )
 
+add_custom_command(
+  OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/myotherinterface.h"
+  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_SOURCE_DIR}/myotherinterface.h.in" "${CMAKE_CURRENT_BINARY_DIR}/myotherinterface.h"
+  DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/myotherinterface.h.in"
+)
+
 add_executable(QtAutogen main.cpp calwidget.cpp foo.cpp blub.cpp bar.cpp abc.cpp
                xyz.cpp yaf.cpp gadget.cpp $<TARGET_OBJECTS:privateSlot>
                test.qrc resourcetester.cpp generated.cpp
 )
-set_property(TARGET QtAutogen APPEND PROPERTY AUTOGEN_TARGET_DEPENDS generate_moc_input)
+set_property(TARGET QtAutogen APPEND PROPERTY AUTOGEN_TARGET_DEPENDS generate_moc_input "${CMAKE_CURRENT_BINARY_DIR}/myotherinterface.h")
 
 set_target_properties(QtAutogen codeeditorLib privateSlot PROPERTIES AUTOMOC TRUE)
 
diff --git a/Tests/QtAutogen/generated.h b/Tests/QtAutogen/generated.h
index dd22489..b6c2711 100644
--- a/Tests/QtAutogen/generated.h
+++ b/Tests/QtAutogen/generated.h
@@ -5,11 +5,12 @@
 #include <QObject>
 
 #include "myinterface.h"
+#include "myotherinterface.h"
 
-class Generated : public QObject, MyInterface
+class Generated : public QObject, MyInterface, MyOtherInterface
 {
   Q_OBJECT
-  Q_INTERFACES(MyInterface)
+  Q_INTERFACES(MyInterface MyOtherInterface)
 public:
   explicit Generated(QObject *parent = 0);
 };
diff --git a/Tests/QtAutogen/myotherinterface.h.in b/Tests/QtAutogen/myotherinterface.h.in
new file mode 100644
index 0000000..d21e7af
--- /dev/null
+++ b/Tests/QtAutogen/myotherinterface.h.in
@@ -0,0 +1,14 @@
+
+#ifndef MYOTHERINTERFACE_H
+#define MYOTHERINTERFACE_H
+
+#include <QObject>
+
+class MyOtherInterface
+{
+
+};
+
+Q_DECLARE_INTERFACE(MyOtherInterface, "org.cmake.example.MyOtherInterface")
+
+#endif