git: 01c0ddf44a77 - main - exterr: Fix build with GCC on 32-bit architectures

The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=01c0ddf44a770a152a01259fd150fc77d5caac26

commit 01c0ddf44a770a152a01259fd150fc77d5caac26
Author:     John Baldwin <[email protected]>
AuthorDate: 2026-08-20 19:49:36 +0000
Commit:     John Baldwin <[email protected]>
CommitDate: 2026-08-20 19:49:36 +0000

    exterr: Fix build with GCC on 32-bit architectures
    
    Use an intermediate uintptr_t cast to avoid casting a uint64_t value
    directly to void * on 32-bit platforms (including lib32 builds).
    
    lib/libc/gen/uexterr_format.c: In function 'uexterr_format_msg':
    lib/libc/gen/uexterr_format.c:248:35: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
      248 |                         PFMT(fmt, (void *)ARG(nextarg));
          |                                   ^
    lib/libc/gen/uexterr_format.c:144:47: note: in definition of macro 'PFMT'
      144 |                 psz = snprintf(buf, bufsz, f, a);                       \
          |                                               ^
    
    Reported by:    GCC 15
    Fixes:          2f024a7cfddd ("exterr: relax format restrictions")
---
 lib/libc/gen/uexterr_format.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/libc/gen/uexterr_format.c b/lib/libc/gen/uexterr_format.c
index e32776c728bd..c983e71d0af1 100644
--- a/lib/libc/gen/uexterr_format.c
+++ b/lib/libc/gen/uexterr_format.c
@@ -245,7 +245,7 @@ uexterr_format_msg(const struct uexterror *ue, char *buf, size_t bufsz)
 			break;
 
 		case 'p':
-			PFMT(fmt, (void *)ARG(nextarg));
+			PFMT(fmt, (void *)(uintptr_t)ARG(nextarg));
 			break;
 
 		case '%':