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exterr: Fix build with GCC on 32-bit architectures

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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:		2f024a7cfd ("exterr: relax format restrictions")
This commit is contained in:
John Baldwin committed 2026-08-20 15:49:36 -04:00
1 parent c4bca1f883
commit 01c0ddf44a
1 file changed
+1 -1
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lib/libc/gen/uexterr_format.c
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@@ -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 '%':