From: Karel Zak <kzak@redhat.com>
Date: Thu, 27 Nov 2025 15:46:22 +0000 (+0100)
Subject: whereis: fix const qualifier warnings for C23
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=01018b74163f9122c75179a7c991b0aa0f8c603c;p=thirdparty%2Futil-linux.git

whereis: fix const qualifier warnings for C23

Fix const qualifier discarded warnings in dirlist_add_subdir() and
lookup() functions. These warnings are reported by gcc 15 which
defaults to the C23 standard.

The strchr() and strrchr() functions return pointers into const strings,
so the receiving variables must be declared as const char *.

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/misc-utils/whereis.c b/misc-utils/whereis.c
index f705ac278..2e2ecda9e 100644
--- a/misc-utils/whereis.c
+++ b/misc-utils/whereis.c
@@ -270,7 +270,7 @@ static void dirlist_add_subdir(struct wh_dirlist **ls, int type, const char *dir
 	char buf[PATH_MAX], *d;
 	DIR *dirp;
 	struct dirent *dp;
-	char *postfix;
+	const char *postfix;
 	size_t len;
 
 	postfix = strchr(dir, '*');
@@ -474,11 +474,12 @@ static void lookup(const char *pattern, struct wh_dirlist *ls, int want)
 {
 	char patbuf[PATH_MAX] = { 0 };
 	int count = 0;
-	char *wait = NULL, *p;
+	char *wait = NULL;
+	const char *p;
 
 	/* canonicalize pattern -- remove path suffix etc. */
 	p = strrchr(pattern, '/');
-	p = p ? p + 1 : (char *) pattern;
+	p = p ? p + 1 : pattern;
 	xstrncpy(patbuf, p, PATH_MAX);
 
 	DBG(SEARCH, ul_debug("lookup dirs for '%s' (%s), want: %s %s %s",