From c95f7b1f388a3de949724dbf50088b616f444fe1 Mon Sep 17 00:00:00 2001
From: Adam Saponara <as@php.net>
Date: Tue, 22 Apr 2025 22:49:32 -0400
Subject: [PATCH] fix bug in `TB_OPT_LIBC_WCHAR`

found by running tests with that option flagged on:

```
$ CFLAGS='-UTB_LIB_OPTS -DTB_OPT_LIBC_WCHAR -DTB_OPT_ATTR_W=64 -DTB_OPT_EGC' make test
```
---
 termbox2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/termbox2.h b/termbox2.h
index 931f1be..d1d2a41 100644
--- a/termbox2.h
+++ b/termbox2.h
@@ -4285,7 +4285,7 @@ static int tb_wcswidth(uint32_t *ch, size_t nch) {
 
 static int tb_iswprint_ex(uint32_t ch, int *w) {
 #ifdef TB_OPT_LIBC_WCHAR
-    if (w) w = wcwidth((wint_t)ch);
+    if (w) *w = wcwidth((wint_t)ch);
     return iswprint(ch);
 #else
     int lo = 0, hi = WCWIDTH_TABLE_LENGTH - 1;
-- 
2.39.5