From 5686ad11f39121113e4f039932f357047ca2713f Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Mon, 16 Sep 2013 10:13:16 +0200
Subject: [PATCH] Fix loop when trying to export a read-only document

---
 src/frontends/qt4/GuiView.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index c9f68f51c2..a5438b930e 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -3307,12 +3307,16 @@ void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 		case LFUN_BUFFER_EXPORT: {
 			if (!doc_buffer)
 				break;
+			FileName target_dir = doc_buffer->fileName().onlyPath();
+			string const dest = cmd.getArg(1);
+			if (!dest.empty() && FileName::isAbsolute(dest))
+				target_dir = FileName(support::onlyPath(dest));
 			// GCC only sees strfwd.h when building merged
 			if (::lyx::operator==(cmd.argument(), "custom")) {
 				dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
 				break;
 			}
-			if (!doc_buffer->fileName().onlyPath().isDirWritable()) {
+			if (!target_dir.isDirWritable()) {
 				exportBufferAs(*doc_buffer);
 				break;
 			}
-- 
2.39.2