From a47cb9bd10322ea19d77106a534d7a59491e0a55 Mon Sep 17 00:00:00 2001
From: Karl Williamson <khw@cpan.org>
Date: Tue, 25 Nov 2025 05:02:00 -0700
Subject: [PATCH] Revert "win32/perllib.c: Omit unused formal parameter name"

This reverts commit 6fb21d69a83e1c194e85e936ab62dea5c142a51d and changes
to use PERL_UNUSED_ARG to silence the compiler warning that commit was
intended to silence

Fixes #23952.
---
 win32/perllib.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/win32/perllib.c b/win32/perllib.c
index 15cef6ebb731..eb330f4f8cf0 100644
--- a/win32/perllib.c
+++ b/win32/perllib.c
@@ -261,8 +261,10 @@ EXTERN_C		/* GCC in C++ mode mangles the name, otherwise */
 BOOL APIENTRY
 DllMain(HINSTANCE hModule,	/* DLL module handle */
         DWORD fdwReason,	/* reason called */
-        LPVOID)                 /* reserved */
+        LPVOID lpvReserved)	/* reserved */
 { 
+    PERL_UNUSED_ARG(lpvReserved);
+
     switch (fdwReason) {
         /* The DLL is attaching to a process due to process
          * initialization or a call to LoadLibrary.