While valgrinding Picasa, I came across the following valgrind error in winefile. (My daily valgrind runs only run the conformance suite, which is why I've never seen this before.) The lines involved seem unchanged since Martin Fuchs' winefile code was merged back in 2002.
I have sent a fix to wine-patches
Alexander N. Sørnes
Conditional jump or move depends on uninitialised value(s) at calc_widths (winefile.c:2711) by create_tree_window (winefile.c:2974) by InitChildWindow (winefile.c:2984) by ChildWndProc (winefile.c:4259) by ??? (library.h:136) by call_window_proc (winproc.c:457) by WINPROC_call_window (winproc.c:2198) by call_window_proc (message.c:1610) by send_message (message.c:2434) by SendMessageW (message.c:2557) by WIN_CreateWindowEx (win.c:1164) by CreateWindowExW (win.c:1362) by MDIClientWndProc_common (mdi.c:1140) by MDIClientWndProcW (mdi.c:1307) by ??? (library.h:136) by call_window_proc (winproc.c:457) by WINPROC_call_window (winproc.c:2198) by call_window_proc (message.c:1610) by send_message (message.c:2434) by SendMessageW (message.c:2557) by create_child_window (winefile.c:1789) by show_frame (winefile.c:4839) by winefile_main (winefile.c:4931) by WinMain (winefile.c:4965) by main (exe_main.c:48) Uninitialised value was created by a stack allocation at calc_widths (winefile.c:2645)