From 56be377cc28452686ac1ee7a75a1c9697fa8efa7 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Wed, 28 Dec 2022 15:40:27 -0500
Subject: [PATCH] attempt to support Windows XP

issue #685
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b705db85c..c563a6cda 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -708,6 +708,10 @@ if (WIN32)
   if (NOT MSVC)
     list(APPEND DEPENDENCIES_LIBRARIES -static)
   endif()
+  # support Windows XP
+  if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+    list(APPEND DEPENDENCIES_DEFINES "_WIN32_WINNT=0x0501")
+  endif()
 elseif (APPLE)
   find_library(COCOA Cocoa REQUIRED)
   list(APPEND DEPENDENCIES_LIBRARIES ${COCOA})