winebuild: Cast-qual warning fix.

tools/winebuild/import.c

diff --git a/tools/winebuild/import.c b/tools/winebuild/import.c
index 634eb07..2241fa5 100644
--- a/tools/winebuild/import.c
+++ b/tools/winebuild/import.c
@@ -147,10 +147,11 @@
 {
     ORDDEF func, *odp, **res = NULL;
 
-    func.name = (char *)name;
+    func.name = xstrdup(name);
     func.ordinal = -1;
     odp = &func;
     if (table) res = bsearch( &odp, table, size, sizeof(*table), func_cmp );
+    free( func.name );
     return res ? *res : NULL;
 }