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fix for the #include_next, v2

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A more correct fix. This one don't break old logic.
    But if include file is not found, we try to search
    again with the new compare rule.

    A description of the problem:
    http://permalink.gmane.org/gmane.comp.compilers.tinycc.devel/2769
This commit is contained in:
seyko 2015-10-17 15:48:10 +03:00
parent ad524bb6c7
commit 6b9490b6ff
1 changed files with 15 additions and 1 deletions
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16
tccpp.c
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@ -1528,6 +1528,7 @@ ST_FUNC void preprocess(int is_bof)
int i, c, n, saved_parse_flags;
char buf[1024], *q;
Sym *s;
int include_next_first_try = 1;
saved_parse_flags = parse_flags;
parse_flags = PARSE_FLAG_PREPROCESS
@ -1617,6 +1618,7 @@ ST_FUNC void preprocess(int is_bof)
/* store current file in stack, but increment stack later below */
*s1->include_stack_ptr = file;
search_again:
n = s1->nb_include_paths + s1->nb_sysinclude_paths;
for (i = -2; i < n; ++i) {
char buf1[sizeof file->filename];
@ -1650,14 +1652,22 @@ ST_FUNC void preprocess(int is_bof)
pstrcat(buf1, sizeof(buf1), buf);
if (tok == TOK_INCLUDE_NEXT)
if (tok == TOK_INCLUDE_NEXT) {
for (f = s1->include_stack_ptr; f >= s1->include_stack; --f)
if (include_next_first_try) {
if (0 == PATHCMP((*f)->filename, buf1)) {
#ifdef INC_DEBUG
printf("%s: #include_next skipping %s\n", file->filename, buf1);
#endif
include_next_first_try++;
goto include_trynext;
}
} else {
if (0 == PATHCMP(file->filename, buf1)) {
goto include_trynext;
}
}
}
e = search_cached_include(s1, buf1);
if (e && (define_find(e->ifndef_macro) || e->ifndef_macro == TOK_once)) {
@ -1688,6 +1698,10 @@ include_trynext:
ch = file->buf_ptr[0];
goto the_end;
}
if (include_next_first_try > 1) {
include_next_first_try = 0;
goto search_again;
}
tcc_error("include file '%s' not found", buf);
include_done:
break;