From a41ba055a5eb0d2dc584fe3046b4ed527b1cd934 Mon Sep 17 00:00:00 2001
From: kervala <none@none>
Date: Mon, 5 Aug 2013 10:32:17 +0200
Subject: [PATCH] Fixed: PCH with Qt 5 and CMake 2.8.11

---
 code/CMakeModules/PCHSupport.cmake | 52 ++++++++++++++++++++++--------
 1 file changed, 39 insertions(+), 13 deletions(-)

diff --git a/code/CMakeModules/PCHSupport.cmake b/code/CMakeModules/PCHSupport.cmake
index 042f6b0cc..bcca9d877 100644
--- a/code/CMakeModules/PCHSupport.cmake
+++ b/code/CMakeModules/PCHSupport.cmake
@@ -10,7 +10,6 @@
 
 IF(MSVC)
   SET(PCHSupport_FOUND TRUE)
-  SET(_PCH_include_prefix "/I")
 ELSE(MSVC)
   IF(CMAKE_COMPILER_IS_GNUCXX)
     EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
@@ -26,16 +25,14 @@ ELSE(MSVC)
     # TODO: make tests for other compilers than GCC
     SET(PCHSupport_FOUND TRUE)
   ENDIF(CMAKE_COMPILER_IS_GNUCXX)
-
-  SET(_PCH_include_prefix "-I")
 ENDIF(MSVC)
 
 # Set PCH_FLAGS for common flags, PCH_ARCH_XXX_FLAGS for specific archs flags and PCH_ARCHS for archs
 MACRO(PCH_SET_COMPILE_FLAGS _target)
   SET(PCH_FLAGS)
-  SET(PCH_ARCHS) 
+  SET(PCH_ARCHS)
+
   SET(_FLAGS)
-  
   LIST(APPEND _FLAGS ${CMAKE_CXX_FLAGS})
 
   STRING(TOUPPER "${CMAKE_BUILD_TYPE}" _UPPER_BUILD)
@@ -46,24 +43,33 @@ MACRO(PCH_SET_COMPILE_FLAGS _target)
     IF(${_targetType} STREQUAL SHARED_LIBRARY OR ${_targetType} STREQUAL MODULE_LIBRARY)
       LIST(APPEND _FLAGS " -fPIC")
     ENDIF(${_targetType} STREQUAL SHARED_LIBRARY OR ${_targetType} STREQUAL MODULE_LIBRARY)
+
+    GET_TARGET_PROPERTY(_pic ${_target} POSITION_INDEPENDENT_CODE)
+    IF(_pic)
+      LIST(APPEND _FLAGS " -fPIE")
+    ENDIF(_pic)
   ENDIF(NOT MSVC)
 
   GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES)
   FOREACH(item ${DIRINC})
-    LIST(APPEND _FLAGS " ${_PCH_include_prefix}\"${item}\"")
+    LIST(APPEND _FLAGS " -I\"${item}\"")
   ENDFOREACH(item)
 
   # Required for CMake 2.6
   SET(GLOBAL_DEFINITIONS)
   GET_DIRECTORY_PROPERTY(DEFINITIONS COMPILE_DEFINITIONS)
-  FOREACH(item ${DEFINITIONS})
-    LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
-  ENDFOREACH(item)
+  IF(DEFINITIONS)
+    FOREACH(item ${DEFINITIONS})
+      LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
+    ENDFOREACH(item)
+  ENDIF(DEFINITIONS)
 
   GET_DIRECTORY_PROPERTY(DEFINITIONS COMPILE_DEFINITIONS_${_UPPER_BUILD})
-  FOREACH(item ${DEFINITIONS})
-    LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
-  ENDFOREACH(item)
+  IF(DEFINITIONS)
+    FOREACH(item ${DEFINITIONS})
+      LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
+    ENDFOREACH(item)
+  ENDIF(DEFINITIONS)
 
   GET_TARGET_PROPERTY(oldProps ${_target} COMPILE_FLAGS)
   IF(oldProps)
@@ -75,6 +81,27 @@ MACRO(PCH_SET_COMPILE_FLAGS _target)
     LIST(APPEND _FLAGS " ${oldPropsBuild}")
   ENDIF(oldPropsBuild)
 
+  GET_TARGET_PROPERTY(DIRINC ${_target} INCLUDE_DIRECTORIES)
+  IF(DIRINC)
+    FOREACH(item ${DIRINC})
+      LIST(APPEND _FLAGS " -I\"${item}\"")
+    ENDFOREACH(item)
+  ENDIF(DIRINC)
+
+  GET_TARGET_PROPERTY(DEFINITIONS ${_target} COMPILE_DEFINITIONS)
+  IF(DEFINITIONS)
+    FOREACH(item ${DEFINITIONS})
+      LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
+    ENDFOREACH(item)
+  ENDIF(DEFINITIONS)
+
+  GET_TARGET_PROPERTY(DEFINITIONS ${_target} COMPILE_DEFINITIONS_${_UPPER_BUILD})
+  IF(DEFINITIONS)
+    FOREACH(item ${DEFINITIONS})
+      LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
+    ENDFOREACH(item)
+  ENDIF(DEFINITIONS)
+
   GET_DIRECTORY_PROPERTY(_directory_flags DEFINITIONS)
   GET_DIRECTORY_PROPERTY(_directory_definitions DIRECTORY ${CMAKE_SOURCE_DIR} DEFINITIONS)
   LIST(APPEND _FLAGS " ${GLOBAL_DEFINITIONS}")
@@ -90,7 +117,6 @@ MACRO(PCH_SET_COMPILE_FLAGS _target)
     SEPARATE_ARGUMENTS(_FLAGS)
   ENDIF(MSVC)
 
-
   IF(CLANG)
     # Determining all architectures and get common flags
     SET(_ARCH_NEXT)