From 00525a38807f6d771c5b1012ae08169b64745397 Mon Sep 17 00:00:00 2001
From: markoburcul <marko@status.im>
Date: Mon, 9 Feb 2026 14:33:28 +0100
Subject: [PATCH] makefile: allow multiple definitions flag for Nim
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Rust includes compiler_builtins crate in rln.lib for low-level ops
GCC (mingw-winlibs) also provides its own implementation of these same builtins
Both are being linked together → conflict
---
 Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Makefile b/Makefile
index 37341792c..6b258861d 100644
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,12 @@ ifeq ($(detected_OS),Windows)
 
   LIBS = -lws2_32 -lbcrypt -liphlpapi -luserenv -lntdll -lminiupnpc -lnatpmp -lpq
   NIM_PARAMS += $(foreach lib,$(LIBS),--passL:"$(lib)")
+
+  # Allow multiple definitions when linking Rust static library with GCC
+  NIM_PARAMS += --passL:"-Wl,--allow-multiple-definition"
+
+  export PATH := /c/msys64/usr/bin:/c/msys64/mingw64/bin:/c/msys64/usr/lib:/c/msys64/mingw64/lib:$(PATH)
+
 endif
 
 ##########