From 168db157bfb7e28cc0e49199eaf7a4c54db5fea2 Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Wed, 15 Apr 2020 17:21:41 +0100
Subject: [PATCH] more dbg output

---
 libvips/iofuncs/mapfile.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libvips/iofuncs/mapfile.c b/libvips/iofuncs/mapfile.c
index 9b4b74d7..8dda21e6 100644
--- a/libvips/iofuncs/mapfile.c
+++ b/libvips/iofuncs/mapfile.c
@@ -341,6 +341,10 @@ vips_remapfilerw( VipsImage *image )
 {
 	void *baseaddr;
 
+#ifdef DEBUG
+	printf( "vips_remapfilerw:\n" ); 
+#endif /*DEBUG*/
+
 #ifdef OS_WIN32
 {
 	HANDLE hFile = (HANDLE) _get_osfhandle( image->fd );