# HG changeset patch
# User Rik <rik@octave.org>
# Date 1522646184 25200
# Node ID d3baac355a2cc2c4d3d642c6e12b0a0388bbda93
# Parent  699fe9cd51ca97c49920d9f7fc741d76d2561072
GLCanvas.cc: Catch exception by reference to silence -Wcatch-value warning (bug #53545).

* GLCanvas.cc (do_print): Change catch block to catch reference to
octave::execution_exception.

diff -r 699fe9cd51ca -r d3baac355a2c libgui/graphics/GLCanvas.cc
--- a/libgui/graphics/GLCanvas.cc	Sun Apr 01 22:06:24 2018 -0700
+++ b/libgui/graphics/GLCanvas.cc	Sun Apr 01 22:16:24 2018 -0700
@@ -138,7 +138,7 @@
             octave::gl2ps_print (figObj, file_cmd.toStdString (),
                                  term.toStdString ());
           }
-        catch (octave::execution_exception e)
+        catch (octave::execution_exception& e)
           {
             octave_link::post_exception (std::current_exception ());
             end_rendering ();