1#include "internal.h"
 2
 3#include <ctype.h>
 4#include <string.h>
 5
 6void
 7initspecialtargets(struct SpecialTargets *targets)
 8{
 9	targets->posix = 0;
10	memset(&targets->phony, 0, sizeof(targets->phony));
11	targets->recipeprefix = '\t';
12	targets->export_all = 0;
13}
14
15void
16updatespecialassign(struct SpecialTargets *targets, const char *lhs, const char *rhs)
17{
18	size_t i;
19
20	if (strcmp(lhs, ".RECIPEPREFIX") != 0)
21		return;
22	for (i = 0; rhs[i] && isspace((unsigned char)rhs[i]); i++)
23		;
24	if (rhs[i])
25		targets->recipeprefix = rhs[i];
26}
27
28int
29handlespecialrule(struct SpecialTargets *targets, const struct RuleNode *rule)
30{
31	size_t i;
32
33	if (rule->targets.n == 1 && strcmp(rule->targets.v[0], ".POSIX") == 0) {
34		targets->posix = 1;
35		return 1;
36	}
37	if (rule->targets.n == 1 && strcmp(rule->targets.v[0], ".PHONY") == 0) {
38		for (i = 0; i < rule->prereqs.n; i++) {
39			if (!hasword(&targets->phony, rule->prereqs.v[i]))
40				addstr(&targets->phony, rule->prereqs.v[i]);
41		}
42		return 1;
43	}
44	if (rule->targets.n == 1 && strcmp(rule->targets.v[0], ".EXPORT_ALL_VARIABLES") == 0) {
45		targets->export_all = 1;
46		return 1;
47	}
48	return 0;
49}