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fix for the #include_next, v3

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don't give an error and simply ingnore directive
  if we detect a loop of the #include_next.

  With this aproach coreutils-8.24.51-8802e
  compiles, but with errors:
  	lib/libcoreutils.a: error: 'xnmalloc' defined twice
	lib/libcoreutils.a: error: 'xnrealloc' defined twice
This commit is contained in:
seyko 2015-10-19 17:55:26 +03:00
parent 6b9490b6ff
commit ad1c01f96c
1 changed files with 4 additions and 14 deletions
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18
tccpp.c
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@ -1528,7 +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;
int include_next_count = 0;
saved_parse_flags = parse_flags;
parse_flags = PARSE_FLAG_PREPROCESS
@ -1618,7 +1618,6 @@ 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];
@ -1654,19 +1653,13 @@ ST_FUNC void preprocess(int is_bof)
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++;
include_next_count++;
goto include_trynext;
}
} else {
if (0 == PATHCMP(file->filename, buf1)) {
goto include_trynext;
}
}
}
e = search_cached_include(s1, buf1);
@ -1698,11 +1691,8 @@ 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);
if (include_next_count == 0)
tcc_error("include file '%s' not found", buf);
include_done:
break;
case TOK_IFNDEF: