From e45c0adefff0882d074454b613f9cffdc9687987 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Tue, 19 May 2015 15:39:15 +0100
Subject: Better error.

---
 src/lib/poznan_encoder.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/lib/poznan_encoder.cc b/src/lib/poznan_encoder.cc
index 2f82655c2..3d063be18 100644
--- a/src/lib/poznan_encoder.cc
+++ b/src/lib/poznan_encoder.cc
@@ -28,6 +28,7 @@
 #include "i18n.h"
 
 using std::string;
+using std::cout;
 using boost::shared_ptr;
 
 PoznanEncoder::PoznanEncoder ()
@@ -67,11 +68,11 @@ void *
 PoznanEncoder::open_library (string library_name)
 {
 	/* XXX: need cross-platform implementation of dlopen etc. */
-	
+
 	library_name = "libdcpomatic-" + library_name + ".so";
 	void* lib = dlopen (library_name.c_str(), RTLD_LAZY | RTLD_GLOBAL);
 	if (!lib) {
-		throw JPEG2000EncoderUnavailableException (name(), "could not find " + library_name);
+		throw JPEG2000EncoderUnavailableException (name(), "could not find " + library_name + " (" + dlerror() + ")");
 	}
 	return lib;
 }
-- 
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