[PATCH 1/4] gprof: Fix discarded-qualifiers problems in source.c

[Calvin Owens]

    ../../gprof/source.c: In function ‘annotate_source’:
    ../../gprof/source.c:126:21: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
      126 |           name_only = strrchr (sf->name, '/');
          |                     ^

Fix this and the similar problem immediately below it by declaring the
local pointer varaibles as const, since they are not modified.

Signed-off-by: Calvin Owens <calvin@wbinvd.org>
---
 gprof/source.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gprof/source.c b/gprof/source.c
index 494f6ecc9b2..322d1fe25a7 100644
--- a/gprof/source.c
+++ b/gprof/source.c
@@ -98,7 +98,8 @@ annotate_source (Source_File *sf, unsigned int max_width,
   bool new_line;
   char buf[8192];
   char *fname;
-  char *annotation, *name_only;
+  char *annotation;
+  const char *name_only;
   FILE *ifp, *ofp;
   Search_List_Elem *sle = src_search_list.head;
 
@@ -126,11 +127,11 @@ annotate_source (Source_File *sf, unsigned int max_width,
 	  name_only = strrchr (sf->name, '/');
 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
 	  {
-	    char *bslash = strrchr (sf->name, '\\');
+	    const char *bslash = strrchr (sf->name, '\\');
 	    if (name_only == NULL || (bslash != NULL && bslash > name_only))
 	      name_only = bslash;
 	    if (name_only == NULL && sf->name[0] != '\0' && sf->name[1] == ':')
-	      name_only = (char *)sf->name + 1;
+	      name_only = (const char *)sf->name + 1;
 	  }
 #endif
 	  if (name_only)
-- 
2.47.3