Function make0rescan

v2/engine/make.c:228–264

int make0rescan( TARGET * t, TARGET * rescanning )
{
    int result = 0;
    TARGETS * c;

    /* Check whether we have already found a cycle. */
    if ( target_scc( t ) == rescanning )
        return 1;

    /* If we have already visited this node, ignore it. */
    if ( t->rescanning == rescanning )
        return 0;

    /* If t is already updated, ignore it. */
    if ( t->scc_root == NULL && t->progress > T_MAKE_ACTIVE )
        return 0;

    t->rescanning = rescanning;
    for ( c = t->depends; c; c = c->next )
    {
        TARGET * dependency = c->target;
        /* Always start at the root of each new strongly connected component. */
        if ( target_scc( dependency ) != target_scc( t ) )
            dependency = target_scc( dependency );
        result |= make0rescan( dependency, rescanning );

        /* Make sure that we pick up the new include node. */
        if ( c->target->includes == rescanning )
            result = 1;
    }
    if ( result && t->scc_root == NULL )
    {
        t->scc_root = rescanning;
        rescanning->depends = targetentry( rescanning->depends, t );
    }
    return result;
}


/*