diff --git a/CMakeLists.txt b/CMakeLists.txt
index aed3e3a5f7b..3d1408c41fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -226,6 +226,11 @@ IF (PEDANTIC)
   ENDIF (MSVC)
 ENDIF (PEDANTIC)
 
+IF(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)")
+  # spatialite crashes on ppc - see bugs.debian.org/603986
+  ADD_DEFINITIONS( -fno-strict-aliasing )
+ENDIF(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)")
+
 IF (CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
   MESSAGE (STATUS "Debug output enabled")
   ADD_DEFINITIONS(-DQGISDEBUG=1)
@@ -403,13 +408,13 @@ IF (WITH_BINDINGS)
   INCLUDE(PyQt4Macros)
 
   # setup SIP variables
-  separate_arguments(PYQT4_SIP_FLAGS) # convert space separated values to a list
-  set(SIP_INCLUDES ${PYQT4_SIP_DIR} ${CMAKE_SOURCE_DIR}/python)
-  set(SIP_CONCAT_PARTS 4)
-  set(SIP_EXTRA_OPTIONS ${PYQT4_SIP_FLAGS})
+  SEPARATE_ARGUMENTS(PYQT4_SIP_FLAGS) # convert space separated values to a list
+  SET(SIP_INCLUDES ${PYQT4_SIP_DIR} ${CMAKE_SOURCE_DIR}/python)
+  SET(SIP_CONCAT_PARTS 4)
+  SET(SIP_EXTRA_OPTIONS ${PYQT4_SIP_FLAGS})
 
   IF (NOT BINDINGS_GLOBAL_INSTALL)
-    set(PYTHON_SITE_PACKAGES_DIR ${QGIS_DATA_DIR}/python)
+    SET(PYTHON_SITE_PACKAGES_DIR ${QGIS_DATA_DIR}/python)
   ENDIF (NOT BINDINGS_GLOBAL_INSTALL)
 
 ENDIF (WITH_BINDINGS)