Re: [Gretl-devel] Bar graphs

On Fri, 28 Nov 2008, Talha Yalta wrote: Crash course in diff unified format: Index: gui2/gpt_dialog.c =================================================================== RCS file: /cvsroot/gretl/gretl/gui2/gpt_dialog.c,v retrieving revision 1.109 diff -u -r1.109 gpt_dialog.c --- gui2/gpt_dialog.c 21 Nov 2008 21:56:51 -0000 1.109 +++ gui2/gpt_dialog.c 27 Nov 2008 23:11:11 -0000 @@ -1926,6 +1926,7 @@ stylist = g_list_append(stylist, "impulses"); stylist = g_list_append(stylist, "dots"); stylist = g_list_append(stylist, "steps"); + stylist = g_list_append(stylist, "boxes"); vbox = gp_dialog_vbox(); gtk_widget_show(vbox); The above is called a patch. It tells you that the file that needs modifications in the gretl source tree is "gui2/gpt_dialog.c" (it says so on top). In this case, the only modification is to add the line stylist = g_list_append(stylist, "boxes"); "Adding" is where the "+" in the patch comes from. If there had been any lines to delete from the source, you'd have had a minus sign. You can find the exact point in the source where to do add the line by looking for "@@". In this case, the patch shows you the point where the adding goes by surrounding it with a few context lines. The first line you're shown is line 1926. So, in practice you may apply the patch by - making sure your source tree is up to date - opening the file gui2/gpt_dialog.c with any editor you like - navigating to line 1926 - adding the appropriate line into the appropriate place - building gretl as per usual On a unix system, most of these steps can be automated via a utility called "patch". See "man patch" for details. HTH, Riccardo (Jack) Lucchetti Dipartimento di Economia Università Politecnica delle Marche r.lucchetti(a)univpm.it http://www.econ.univpm.it/lucchetti