From 0c8a3181c0ad21051a291d82cb24979bfa3bf2c4 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 17 Nov 2024 19:29:16 +0900
Subject: Win32: Remove unreferenced COMDAT from object files

Windows 11 SDK Version 10.0.26100.0 introduced a new internal inline
function in ucrt/corecrt_math.h.  Even it appears in object files and
will be included in the DEF file, it will be removed from the DLL and
result in a linker error.
---
 win32/Makefile.sub | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index 8cf0b03a7f..f5b76bbe02 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -158,6 +158,9 @@ OPTFLAGS = -O2b2xg-
 OPTFLAGS = -O2sy-
 !endif
 !endif
+!if $(MSC_VER) >= 1900
+OPTFLAGS = $(OPTFLAGS) -Zc:inline
+!endif
 !if !defined(incflags)
 incflags =
 !endif
-- 
cgit v1.2.3