[PATCH 3/4] ld: Fix discarded-qualifiers problems in ldlang.c

[Calvin Owens]

    ../../ld/ldlang.c: In function ‘archive_path’:
    ../../ld/ldlang.c:347:5: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
      347 |   p = strchr (pattern, link_info.path_separator);
          |     ^

Because the prior patch refactored input_statement_is_archive_path() to
take a constant pointer as its second argument, fix this by making the
return type of archive_path() const, and fixing up its two callers.

Signed-off-by: Calvin Owens <calvin@wbinvd.org>
---
 ld/ldlang.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/ld/ldlang.c b/ld/ldlang.c
index b52ca2c4b03..1a18b8f5674 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -337,10 +337,10 @@ stat_ldirname (const char *name)
 /* If PATTERN is of the form archive:file, return a pointer to the
    separator.  If not, return NULL.  */
 
-static char *
+static const char *
 archive_path (const char *pattern)
 {
-  char *p = NULL;
+  const char *p = NULL;
 
   if (link_info.path_separator == 0)
     return p;
@@ -423,7 +423,7 @@ walk_wild_file_in_exclude_list (struct name_list *exclude_list,
        list_tmp;
        list_tmp = list_tmp->next)
     {
-      char *p = archive_path (list_tmp->name);
+      const char *p = archive_path (list_tmp->name);
 
       if (p != NULL)
 	{
@@ -479,7 +479,7 @@ walk_wild_section_match (lang_wild_statement_type *ptr,
 {
   struct wildcard_list *sec;
   const char *file_spec = ptr->filename;
-  char *p;
+  const char *p;
 
   /* Check if filenames match.  */
   if (file_spec == NULL)
-- 
2.47.3