I just tried to compile package jfsutils-1.1.10-2 with the Intel C compiler 

It said

dirindex.c(203): warning #1011: missing return statement at end of non-void function "dirty_index_page"
dirindex.c(200): warning #117: non-void function "dirty_index_page" should return a value

The source code is

static int dirty_index_page(struct dir_table_slot *table)
{
        /* Should only be called on most recent page */
        if (table != mru_di_page->table) {
                /* Really shoudn't happen. */
                printf("You messed up, Shaggy.  write_index_page mismatch.\n");
                return;
        }
        mru_di_page->flag |= DIPAGE_DIRTY;
}

So the return statement is missing an expression, and there is a missing
return statement at the end of the routine.