git: 2296c39a9ebc - main - xinstall: Const correctness for C23

The branch main has been updated by ivy:

URL: https://cgit.FreeBSD.org/src/commit/?id=2296c39a9ebc4f081d90b6554d8839e8cde8490a

commit 2296c39a9ebc4f081d90b6554d8839e8cde8490a
Author:     Lexi Winter <ivy@FreeBSD.org>
AuthorDate: 2026-08-03 14:07:09 +0000
Commit:     Lexi Winter <ivy@FreeBSD.org>
CommitDate: 2026-08-03 14:07:09 +0000

    xinstall: Const correctness for C23
    
    On some platforms, e.g. Linux Clang 22.1.8 / glibc 2.43, strchr()
    now implements the C23 behaviour where passing a const pointer to
    strchr() also returns a const pointer.  This breaks xinstall during
    the bootstrap build, since it assumes the return value is always
    a mutable pointer.
    
    As the returned pointer is never used to modify the value, fix this
    by making the temporary variable const.
    
    MFC after:      1 week
    Reviewed by:    ray, markj, emaste
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D58492
---
 usr.bin/xinstall/xinstall.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/usr.bin/xinstall/xinstall.c b/usr.bin/xinstall/xinstall.c
index 7636da20153b..36af3528cae6 100644
--- a/usr.bin/xinstall/xinstall.c
+++ b/usr.bin/xinstall/xinstall.c
@@ -819,7 +819,8 @@ install(const char *from_name, const char *to_name, u_long fset, u_int flags)
 	char backup[MAXPATHLEN], pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN];
 	struct stat from_sb, temp_sb, to_sb;
 	struct timespec tsb[2];
-	char *digestresult, *p;
+	char *digestresult;
+	const char *p;
 	int from_fd, temp_fd, to_fd, serrno;
 	bool devnull, exists, files_match, ispipe, stripped;