From 085fa42b7df25cff3030a8c58547bb6c95d284f5 Mon Sep 17 00:00:00 2001
From: cfillion <cfillion@users.noreply.github.com>
Date: Thu, 27 Apr 2023 19:15:48 +0200
Subject: [PATCH] Adedd workaround for GCC erroneous/zealous warning (#5343)

---
 imgui_draw.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index 313bc0f3e..b76f876d2 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -2623,6 +2623,9 @@ void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opa
 
     ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
     IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
+#ifdef __GNUC__
+    if (user_rects.Size < 1) { __builtin_unreachable(); } // Workaround for GCC bug if IM_ASSERT() is defined to conditionally throw (see #5343)
+#endif
 
     ImVector<stbrp_rect> pack_rects;
     pack_rects.resize(user_rects.Size);