x11-toolkits/gtk-sharp*: Unbreak ports for lang/mono6.8

See also:	https://svnweb.freebsd.org/changeset/ports/558398
PR:		272950
Approved by:	portmgr (build fix blanket)
MFH:		2023Q3

x11-toolkits/gtk-sharp20/Makefile

@@ -25,14 +25,8 @@ SHEBANG_FILES=	parser/*.pl
 GNU_CONFIGURE=	yes
 MAKE_ENV=	INSTALL_STRIP_FLAG=${STRIP}
 
-.include <bsd.port.pre.mk>
-
-.if defined(MONO_DEFAULT) && ${MONO_DEFAULT} > 6
-BROKEN=		fails to build with Mono version ${MONO_DEFAULT}: 'Range' is an ambiguous reference between 'System.Range' and 'Gtk.Range'
-.endif
-
 post-patch:
 	@${REINPLACE_CMD} -e 's|glib/.*\.h>|glib.h>|g' \
 		${WRKSRC}/glib/glue/*.c
 
-.include <bsd.port.post.mk>
+.include <bsd.port.mk>

x11-toolkits/gtk-sharp20/files/patch-sample_test_TestRange.cs

+--- sample/test/TestRange.cs.orig	2016-09-21 11:49:20 UTC
++++ sample/test/TestRange.cs
+@@ -32,14 +32,14 @@ namespace WidgetViewer {
+ 
+ 			HScale hscale = new HScale (adjustment);
+ 			hscale.SetSizeRequest (150, -1);
+-			((Range) hscale).UpdatePolicy = UpdateType.Delayed;
++			((Gtk.Range) hscale).UpdatePolicy = UpdateType.Delayed;
+ 
+ 			hscale.Digits = 1;
+ 			hscale.DrawValue = true;
+ 			box2.PackStart (hscale, true, true, 0);
+ 
+ 			HScrollbar hscrollbar = new HScrollbar (adjustment);
+-			((Range) hscrollbar).UpdatePolicy = UpdateType.Continuous;
++			((Gtk.Range) hscrollbar).UpdatePolicy = UpdateType.Continuous;
+ 			box2.PackStart (hscrollbar, true, true, 0);
+ 
+ 			hscale = new HScale (adjustment);
+@@ -59,7 +59,7 @@ namespace WidgetViewer {
+ 			vscale.SetSizeRequest (-1, 200);
+ 			vscale.Digits = 2;
+ 			vscale.DrawValue = true;
+-			((Range) vscale).Inverted = true;
++			((Gtk.Range) vscale).Inverted = true;
+ 			hbox.PackStart (vscale, true, true, 0);
+ 
+ 			vscale = new VScale (adjustment);

x11-toolkits/gtk-sharp30/Makefile

@@ -24,14 +24,8 @@ SHEBANG_FILES=	parser/*.pl
 USE_PERL5=	run
 MAKE_ENV=	INSTALL_STRIP_FLAG=${STRIP}
 
-.include <bsd.port.pre.mk>
-
-.if defined(MONO_DEFAULT) && ${MONO_DEFAULT} > 6
-BROKEN=		fails to build with Mono version ${MONO_DEFAULT}: 'Range' is an ambiguous reference between 'System.Range' and 'Gtk.Range'
-.endif
-
 post-patch:
 	@${REINPLACE_CMD} -e 's|gmcs|mcs|g' \
 		${WRKSRC}/configure
 
-.include <bsd.port.post.mk>
+.include <bsd.port.mk>

x11-toolkits/gtk-sharp30/files/patch-sample_test_TestRange.cs

+--- sample/test/TestRange.cs.orig	2013-08-18 15:32:57 UTC
++++ sample/test/TestRange.cs
+@@ -57,7 +57,7 @@ namespace WidgetViewer {
+ 			vscale.SetSizeRequest (-1, 200);
+ 			vscale.Digits = 2;
+ 			vscale.DrawValue = true;
+-			((Range) vscale).Inverted = true;
++			((Gtk.Range) vscale).Inverted = true;
+ 			hbox.PackStart (vscale, true, true, 0);
+ 
+ 			vscale = new VScale (adjustment);