Chris Shoemaker's gcc4 patches.

[David Hampton]

Log Message:
-----------
Chris Shoemaker's gcc4 patches.

Tags:
----
gnucash-gnome2-dev

Modified Files:
--------------
    gnucash/src/backend/qsf:
        qsf-xml-map.c
    gnucash/src/engine:
        guid.c
    gnucash/src/engine/test-core:
        test-engine-stuff.c