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(before_system, last_before_system): New variables.

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(main): Handle -isystem option.  Insert -isystem directories in
search chain at first_system_include.

From-SVN: r6812
This commit is contained in:
Jim Wilson 1994-03-18 12:35:42 -08:00
parent 5ea7a4ae88
commit b0866c745a
1 changed files with 28 additions and 1 deletions
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29
gcc/cccp.c
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@ -619,6 +619,10 @@ static struct file_name_list *last_include = 0; /* Last in chain */
static struct file_name_list *after_include = 0; static struct file_name_list *after_include = 0;
static struct file_name_list *last_after_include = 0; /* Last in chain */ static struct file_name_list *last_after_include = 0; /* Last in chain */
/* Chain to put at the start of the system include files. */
static struct file_name_list *before_system = 0;
static struct file_name_list *last_before_system = 0; /* Last in chain */
/* List of included files that contained #pragma once. */ /* List of included files that contained #pragma once. */
static struct file_name_list *dont_repeat_files = 0; static struct file_name_list *dont_repeat_files = 0;
@ -1177,6 +1181,27 @@ main (argc, argv)
else else
include_prefix = argv[++i]; include_prefix = argv[++i];
} }
if (!strcmp (argv[i], "-isystem")) {
struct file_name_list *dirtmp;
if (i + 1 == argc)
fatal ("Filename missing after `-isystem' option");
dirtmp = (struct file_name_list *)
xmalloc (sizeof (struct file_name_list));
dirtmp->next = 0;
dirtmp->control_macro = 0;
dirtmp->c_system_include_path = 1;
dirtmp->fname = (char *) xmalloc (strlen (argv[i+1]) + 1);
strcpy (dirtmp->fname, argv[++i]);
dirtmp->got_name_map = 0;
if (before_system == 0)
before_system = dirtmp;
else
last_before_system->next = dirtmp;
last_before_system = dirtmp; /* Tail follows the last one */
}
/* Add directory to end of path for includes, /* Add directory to end of path for includes,
with the default prefix at the front of its name. */ with the default prefix at the front of its name. */
if (!strcmp (argv[i], "-iwithprefix")) { if (!strcmp (argv[i], "-iwithprefix")) {
@ -1733,7 +1758,9 @@ main (argc, argv)
} }
} }
first_system_include = 0; append_include_chain (before_system, last_before_system);
first_system_include = before_system;
/* Unless -fnostdinc, /* Unless -fnostdinc,
tack on the standard include file dirs to the specified list */ tack on the standard include file dirs to the specified list */
if (!no_standard_includes) { if (!no_standard_includes) {