From d9f8d73be2ca4a516d2e6f7162921fa5ea02d24b Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Thu, 2 Feb 2023 08:59:36 +0100
Subject: [PATCH] gstring: Avoid warnings from inline functions

The current code for g_string_append_c_inline generates
warnings when used, with -Wnull-dereference. Avoid that.
---
 glib/gstring.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/glib/gstring.h b/glib/gstring.h
index fde18db88..0a6af767a 100644
--- a/glib/gstring.h
+++ b/glib/gstring.h
@@ -187,7 +187,8 @@ static inline GString*
 g_string_append_c_inline (GString *gstring,
                           gchar    c)
 {
-  if (G_LIKELY (gstring->len + 1 < gstring->allocated_len))
+  if (G_LIKELY (gstring != NULL &&
+                gstring->len + 1 < gstring->allocated_len))
     {
       gstring->str[gstring->len++] = c;
       gstring->str[gstring->len] = 0;