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1.1 root 1: #include "mk.h"
2:
3: dorecipe(node)
4: Node *node;
5: {
6: char buf[BIGBLOCK];
7: register Node *n;
8: Rule *r = 0;
9: Arc *a, *aa;
10: Word head, ahead, lp, ln, *w, *ww, *aw;
11: Symtab *s;
12: int did = 0;
13: regexp rmatch[NREGEXP];
14:
15: /*
16: pick up the rule
17: */
18: for(a = node->prereqs; a; a = a->next)
19: if(*a->r->recipe)
20: r = (aa = a)->r;
21: /*
22: no recipe? go to buggery!
23: */
24: if(r == 0){
25: if(!(node->flags&VIRTUAL) && !(node->flags&NORECIPE)){
26: Fprint(2, "mk: no recipe to make '%s'\n", node->name);
27: Exit();
28: }
29: update(0, node);
30: if(tflag){
31: if(!(node->flags&VIRTUAL))
32: touch(node->name);
33: else if(explain)
34: Fprint(1, "no touch of virtual '%s'\n", node->name);
35: }
36: return(did);
37: }
38: /*
39: build the node list
40: */
41: node->next = 0;
42: head.next = 0;
43: ww = &head;
44: ahead.next = 0;
45: aw = &ahead;
46: if(r->attr®EXP){
47: ww->next = newword(node->name);
48: aw->next = newword(node->name);
49: } else {
50: for(w = r->alltargets; w; w = w->next){
51: if(r->attr&META)
52: subst(aa->stem, w->s, buf);
53: else
54: strcpy(buf, w->s);
55: aw->next = newword(buf);
56: aw = aw->next;
57: if((s = symlook(buf, S_NODE, (char *)0)) == 0)
58: continue; /* not a node we are interested in */
59: n = (Node *)s->value;
60: ww->next = newword(buf);
61: ww = ww->next;
62: if(n == node) continue;
63: n->next = node->next;
64: node->next = n;
65: }
66: }
67: for(n = node; n; n = n->next)
68: if((n->flags&READY) == 0)
69: return(did);
70: /*
71: gather the params for the job
72: */
73: lp.next = ln.next = 0;
74: for(n = node; n; n = n->next){
75: for(a = n->prereqs; a; a = a->next){
76: if(a->n){
77: addw(&lp, a->n->name);
78: if(outofdate(n, a, 0)){
79: addw(&ln, a->n->name);
80: if(explain)
81: fprint(1, "%s(%ld) < %s(%ld)\n",
82: n->name, n->time, a->n->name, a->n->time);
83: }
84: } else {
85: if(explain)
86: fprint(1, "%s has no prerequisites\n",
87: n->name);
88: }
89: }
90: MADESET(n, BEINGMADE);
91: }
92: /* print("lt=%s ln=%s lp=%s\n",wtos(head.next),wtos(ln.next),wtos(lp.next));/**/
93: run(newjob(r, node, aa->stem, aa->match, lp.next, ln.next, head.next, ahead.next));
94: return(1);
95: }
96:
97: addw(w, s)
98: register Word *w;
99: char *s;
100: {
101: register Word *lw;
102:
103: for(lw = w; w = w->next; lw = w){
104: if(strcmp(s, w->s) == 0)
105: return;
106: }
107: lw->next = newword(s);
108: }
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