From 92468e99f7fb98d1965fc694553ddeb10522ae94 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Sat, 8 Nov 2025 13:04:05 +0800
Subject: [PATCH] fixes #25265; fixes #23453; Unable to build Nim 2.2.6 tools
 from source (#25269)

fixes #25265;
fixes #23453

`(addr deref (ptr object))` generated weak typedesc before, which causes
problems for old GCC versions. As a bonus, by generating a typedesc for
`deref (ptr object)`, it also fixes #23453
---
 compiler/ccgexprs.nim | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler/ccgexprs.nim b/compiler/ccgexprs.nim
index d3e215ea56..8c8a12a327 100644
--- a/compiler/ccgexprs.nim
+++ b/compiler/ccgexprs.nim
@@ -919,6 +919,10 @@ proc genDeref(p: BProc, e: PNode, d: var TLoc) =
       return
     else:
       a = initLocExprSingleUse(p, e[0])
+
+    if e.typ != nil and e.typ.kind == tyObject:
+      # bug #23453 #25265
+      discard getTypeDesc(p.module, e.typ)
     if d.k == locNone:
       # dest = *a;  <-- We do not know that 'dest' is on the heap!
       # It is completely wrong to set 'd.storage' here, unless it's not yet