From: Frank Lichtenheld <frank@lichtenheld.com>
Date: Mon, 8 Dec 2025 11:36:30 +0000 (+0100)
Subject: CMake: For VS build, switch from /W2 to /W3
X-Git-Tag: v2.7_rc4~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a2420fd63265166d1b60a38e8180aa360473ddc;p=thirdparty%2Fopenvpn.git

CMake: For VS build, switch from /W2 to /W3

But exclude the added checks that currently have failures
so that we can keep /WX enabled.
Basically this excludes -Wconversion and -Wsign-compare,
as expected from our GCC/Clang flags.

Github: #382
Change-Id: Iffc114939cb37129057e9c4864fae9e09c3c7fe4
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Gerrit URL: https://gerrit.openvpn.net/c/openvpn/+/1417
Message-Id: <20251208113636.9650-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg34876.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3142e454..906fa04c1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,9 +85,12 @@ if (MSVC)
     if (USE_WERROR)
         add_compile_options(/WX)
     endif ()
+    # C4018: signed/unsigned mismatch
+    # C4244: conversion from 'type1' to 'type2', possible loss of data
+    # C4267: conversion from 'size_t' to 'type', possible loss of data
     add_compile_options(
         /MP
-        /W2
+        /W3 /wd4018 /wd4267 /wd4244
         /sdl
         /Qspectre
         /guard:cf