diff -up libQGLViewer-2.6.3/QGLViewer/QGLViewer.pro.dbg libQGLViewer-2.6.3/QGLViewer/QGLViewer.pro

--- libQGLViewer-2.6.3/QGLViewer/QGLViewer.pro.dbg	2016-02-05 10:13:04.186626319 +0100

+++ libQGLViewer-2.6.3/QGLViewer/QGLViewer.pro	2016-02-05 10:13:12.394783924 +0100

@@ -158,10 +158,6 @@ unix {

 		QMAKE_COPY_FILE = $${QMAKE_COPY_FILE} -P

 	}

-	# Make much smaller libraries (and packages) by removing debugging informations

-	QMAKE_CFLAGS_RELEASE -= -g

-	QMAKE_CXXFLAGS_RELEASE -= -g

-

 	# install header

 	include.path = $${INCLUDE_DIR_}/QGLViewer

 	# Should be $$replace(TRANSLATIONS, .ts, .qm), but 'replace' only appeared in Qt 4.3