From 9210a56ca4f7a295809f1565dddc5947bcab308a Mon Sep 17 00:00:00 2001
From: heckflosse <heckflosse67@gmx.de>
Date: Mon, 4 Feb 2019 22:18:14 +0100
Subject: [PATCH] Log filename in case mmap failed

---
 rtengine/myfile.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtengine/myfile.cc b/rtengine/myfile.cc
index 920421188..28d187e4c 100644
--- a/rtengine/myfile.cc
+++ b/rtengine/myfile.cc
@@ -107,7 +107,7 @@ IMFILE* fopen (const char* fname)
     void* data = mmap(nullptr, stat_buffer.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 
     if ( data == MAP_FAILED ) {
-        printf("no mmap\n");
+        printf("no mmap %s\n", fname);
         close(fd);
         return nullptr;
     }