From 5feb04e233e1e6f81c727578ad9eae1367a2562f Mon Sep 17 00:00:00 2001
From: Devin Matthews <damatthews@smu.edu>
Date: Sun, 23 May 2021 18:46:56 -0500
Subject: [PATCH] Add explicit compiler check for Windows.

Check the C compiler for a predefined macro `_WIN32` to indicate (cross-)compilation for Windows. Fixes #463.
---
 configure | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure b/configure
index 67d87a1b01..92a6c229c8 100755
--- a/configure
+++ b/configure
@@ -2373,6 +2373,11 @@ main()
 	fi
 
 	echo "${script_name}: using '${found_cc}' C compiler."
+	
+	# Also check the compiler to see if we are (cross-)compiling for Windows
+	if ${found_cc} -dM -E - < /dev/null 2> /dev/null | grep -q _WIN32; then
+		is_win=yes
+	fi
 
 
 	# -- Find a C++ compiler ---------------------------------------------------