x11/gcolor2: fix for -fno-common

adapted from https://svnweb.freebsd.org/ports?view=revision&revision=547510

x11/gcolor2/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.13 2019/07/12 20:51:11 sthen Exp $
+# $OpenBSD: Makefile,v 1.14 2021/02/05 11:53:52 landry Exp $
 #
 COMMENT =		color selector in GTK2
 
 DISTNAME =		gcolor2-0.4
-REVISION =		7
+REVISION =		8
 CATEGORIES =		x11
 
 HOMEPAGE =		http://gcolor2.sourceforge.net/

x11/gcolor2/patches/patch-src_callbacks_h

@@ -0,0 +1,20 @@
+$OpenBSD: patch-src_callbacks_h,v 1.1 2021/02/05 11:53:52 landry Exp $
+
+https://svnweb.freebsd.org/ports?view=revision&revision=547510
+
+Index: src/callbacks.h
+--- src/callbacks.h.orig
++++ src/callbacks.h
+@@ -41,9 +41,9 @@
+                            "\302\267 Usability / user interface enhancements\n" \
+                            "\302\267 Code cleanup"
+ 
+-GtkWidget *gcolor2;
+-GtkWidget *menu;
+-GdkColor   colorvalue;
++extern GtkWidget *gcolor2;
++extern GtkWidget *menu;
++extern GdkColor   colorvalue;
+ 
+ enum
+ {

x11/gcolor2/patches/patch-src_main_c

@@ -1,6 +1,10 @@
-$OpenBSD: patch-src_main_c,v 1.1.1.1 2010/10/17 21:38:05 landry Exp $
---- src/main.c.orig	Sun Oct 17 00:19:56 2010
-+++ src/main.c	Sat Oct 16 22:57:50 2010
+$OpenBSD: patch-src_main_c,v 1.2 2021/02/05 11:53:52 landry Exp $
+
+https://svnweb.freebsd.org/ports?view=revision&revision=547510
+
+Index: src/main.c
+--- src/main.c.orig
++++ src/main.c
 @@ -3,7 +3,12 @@
  #endif
  
@@ -14,9 +18,13 @@ $OpenBSD: patch-src_main_c,v 1.1.1.1 2010/10/17 21:38:05 landry Exp $
  
  #include "interface.h"
  #include "support.h"
-@@ -14,6 +19,7 @@ GdkWindow    *gdkwin;
+@@ -13,7 +18,11 @@ GtkListStore *liststore;
+ GdkWindow    *gdkwin;
  gchar        *user_filename;
  gchar        *sys_filename;
++GtkWidget *gcolor2;
++GtkWidget *menu;
++GdkColor   colorvalue;
  
 +#include "main.h"