From 433f4621cce73ea3fd5b1b611b5e75c115dc6c68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20K=C3=BCmmel?= <syntheticpp@gmx.net>
Date: Mon, 8 Nov 2010 08:40:12 +0000
Subject: [PATCH] don't eat a CPU core when using Qt < 4.4 or EXPORT_in_THREAD
 == 1

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36208 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/frontends/qt4/GuiView.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 23e9b5e451..66b621f82f 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -2951,13 +2951,15 @@ bool GuiView::GuiViewPrivate::asyncBufferProcessing(
 	// We are asynchronous, so we don't know here anything about the success
 	return true;
 #else
-	bool const update_unincluded =
-		used_buffer->params().maintain_unincluded_children &&
-		!used_buffer->params().getIncludedChildren().empty();
 	if (syncFunc) {
+		// TODO check here if it breaks exporting with Qt < 4.4
+		bool const update_unincluded =
+				used_buffer->params().maintain_unincluded_children &&
+				!used_buffer->params().getIncludedChildren().empty();
 		return (used_buffer->*syncFunc)(format, true, update_unincluded);
 	} else if (previewFunc) {
-		return (used_buffer->*previewFunc)(format, update_unincluded);
+    // TODO includeall must be false or we get a 100% busy thread, a bug?
+		return (used_buffer->*previewFunc)(format, false);
 	}
 	(void) asyncFunc;
 	return false;