http://www.winehq.org/hypermail/wine-devel/2003/04/0300.html

Index: tools/winebuild/import.c
===================================================================
RCS file: /home/wine/wine/tools/winebuild/import.c,v
retrieving revision 1.48
diff -r1.48 wine/tools/winebuild/import.c
664a665,667
>    if (*p == 'U') {
>            if (p[1] == ' ') p+=2;
>    }