From a363f7075125fa654342c69331e6c075518ec28c Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon, 23 Jan 2023 13:59:31 -0300
Subject: wchar: Define va_list for POSIX (BZ #30035)

This was uncovered by a recent clang change [1].  Different than ISO C,
POSIX states that va_list should be exported by wchar.h [2].

Checked on x86_64-linux-gnu and aarch64-linux-gnu.

[1] https://reviews.llvm.org/D137268
[2] https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/basedefs/wchar.h.html
---
 wcsmbs/wchar.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'wcsmbs')

diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index acc2eb9..d16f2e6 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -37,6 +37,17 @@
 #define __need___va_list
 #include <stdarg.h>
 
+#if defined __USE_XOPEN2K || defined __USE_XOPEN2K8
+# ifdef __GNUC__
+#  ifndef _VA_LIST_DEFINED
+typedef __gnuc_va_list va_list;
+#   define _VA_LIST_DEFINED
+#  endif
+# else
+#  include <stdarg.h>
+# endif
+#endif
+
 #include <bits/wchar.h>
 #include <bits/types/wint_t.h>
 #include <bits/types/mbstate_t.h>
-- 
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