Mark qt4_use_modules and qt4_automoc as obsolete.

The QT_QMAKE_EXECUTABLE has to be passed through the cmake calls because
the executable may not be in the PATH.

Modules/FindQt4.cmake

@@ -100,6 +100,7 @@
 #        because you need a custom filename for the moc file or something similar.
 #
 #  macro QT4_AUTOMOC(sourcefile1 sourcefile2 ... )
+#        The qt4_automoc macro is obsolete.  Use the CMAKE_AUTOMOC feature instead.
 #        This macro is still experimental.
 #        It can be used to have moc automatically handled.
 #        So if you have the files foo.h and foo.cpp, and in foo.h a
@@ -174,6 +175,7 @@
 #        must exist and are not updated in any way.
 #
 # function QT4_USE_MODULES( target [link_type] modules...)
+#        This function is obsolete. Use target_link_libraries with IMPORTED targets instead.
 #        Make <target> use the <modules> from Qt. Using a Qt module means
 #        to link to the library, add the relevant include directories for the module,
 #        and add the relevant compiler defines for using the module.

Modules/Qt4Macros.cmake

@@ -357,6 +357,17 @@ endmacro()
 
 
 macro(QT4_AUTOMOC)
+  if(NOT CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.11)
+    if(CMAKE_WARN_DEPRECATED)
+      set(messageType WARNING)
+    endif()
+    if(CMAKE_ERROR_DEPRECATED)
+      set(messageType FATAL_ERROR)
+    endif()
+    if(messageType)
+      message(${messageType} "The qt4_automoc macro is obsolete. Use the CMAKE_AUTOMOC feature instead.")
+    endif()
+  endif()
   QT4_GET_MOC_FLAGS(_moc_INCS)
 
   set(_matching_FILES )
@@ -467,6 +478,17 @@ macro(QT4_ADD_TRANSLATION _qm_files)
 endmacro()
 
 function(qt4_use_modules _target _link_type)
+  if(NOT CMAKE_MINIMUM_REQUIRED_VERSION VERSION_LESS 2.8.11)
+    if(CMAKE_WARN_DEPRECATED)
+      set(messageType WARNING)
+    endif()
+    if(CMAKE_ERROR_DEPRECATED)
+      set(messageType FATAL_ERROR)
+    endif()
+    if(messageType)
+      message(${messageType} "The qt4_use_modules function is obsolete. Use target_link_libraries with IMPORTED targets instead.")
+    endif()
+  endif()
   if ("${_link_type}" STREQUAL "LINK_PUBLIC" OR "${_link_type}" STREQUAL "LINK_PRIVATE")
     set(modules ${ARGN})
     set(link_type ${_link_type})

Tests/RunCMake/CMakeLists.txt

@@ -101,6 +101,10 @@ find_package(Qt5Core QUIET)
 if (QT4_FOUND AND Qt5Core_FOUND AND NOT Qt5Core_VERSION VERSION_LESS 5.1.0)
   add_RunCMake_test(IncompatibleQt)
 endif()
+if (QT4_FOUND)
+  set(ObsoleteQtMacros_ARGS -DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE})
+  add_RunCMake_test(ObsoleteQtMacros)
+endif()
 
 if("${CMAKE_TEST_GENERATOR}" MATCHES "Visual Studio [^6]")
   add_RunCMake_test(include_external_msproject)

Tests/RunCMake/ObsoleteQtMacros/AutomocMacro-WARN-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/ObsoleteQtMacros/AutomocMacro-WARN-stderr.txt

@@ -0,0 +1,5 @@
+CMake Warning at .*/Modules/Qt4Macros.cmake:[^ ]+ \(message\):
+  The qt4_automoc macro is obsolete.  Use the CMAKE_AUTOMOC feature instead.
+Call Stack \(most recent call first\):
+  AutomocMacro-WARN.cmake:7 \(qt4_automoc\)
+  CMakeLists.txt:3 \(include\)

Tests/RunCMake/ObsoleteQtMacros/AutomocMacro-WARN.cmake

@@ -0,0 +1,7 @@
+
+find_package(Qt4 REQUIRED)
+
+set(CMAKE_WARN_DEPRECATED 1)
+
+add_library(foo SHARED empty.cpp)
+qt4_automoc(foo_moc_srcs empty.cpp)

Tests/RunCMake/ObsoleteQtMacros/CMakeLists.txt

@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.11)
+project(${RunCMake_TEST})
+include(${RunCMake_TEST}.cmake)

Tests/RunCMake/ObsoleteQtMacros/RunCMakeTest.cmake

@@ -0,0 +1,6 @@
+include(RunCMake)
+
+set(RunCMake_TEST_OPTIONS -DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE})
+
+run_cmake(UseModulesMacro-WARN)
+run_cmake(AutomocMacro-WARN)

Tests/RunCMake/ObsoleteQtMacros/UseModulesMacro-WARN-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/ObsoleteQtMacros/UseModulesMacro-WARN-stderr.txt

@@ -0,0 +1,6 @@
+CMake Warning at .*/Modules/Qt4Macros.cmake:[^ ]+ \(message\):
+  The qt4_use_modules function is obsolete.  Use target_link_libraries with
+  IMPORTED targets instead.
+Call Stack \(most recent call first\):
+  UseModulesMacro-WARN.cmake:[^ ]+ \(qt4_use_modules\)
+  CMakeLists.txt:3 \(include\)

Tests/RunCMake/ObsoleteQtMacros/UseModulesMacro-WARN.cmake

@@ -0,0 +1,7 @@
+
+find_package(Qt4 REQUIRED)
+
+set(CMAKE_WARN_DEPRECATED 1)
+
+add_library(foo SHARED empty.cpp)
+qt4_use_modules(foo LINK_PRIVATE Core)

Tests/RunCMake/ObsoleteQtMacros/empty.cpp

@@ -0,0 +1,7 @@
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int empty(void)
+{
+  return 0;
+}