gtk-sharp: fix build

srcpkgs/gtk-sharp/patches/ftbfs.patch

@@ -0,0 +1,11 @@
+--- sample/test/TestRange.cs
++++ sample/test/TestRange.cs
+@@ -9,6 +9,8 @@
+ using System;
+ 
+ using Gtk;
++// disambiguate, Gtk.Range vs System.Range
++using Range=Gtk.Range;
+ 
+ namespace WidgetViewer {
+ 

srcpkgs/gtk-sharp/template

@@ -14,6 +14,12 @@ short_desc="Graphical User Interface Toolkit for mono and .Net (Gtk#)"
 distfiles="${GNOME_SITE}/${pkgname}/${version%.*}/${pkgname}-${version}.tar.xz"
 checksum=6440f571416267ae0cb5698071d087b31e3084693fa2c829b1db37ca7ea2c3a2
 
+if [ "$XBPS_TARGET_ENDIAN" = "be" ]; then
+	_have_mdoc="no"
+elif [[ $XBPS_TARGET_MACHINE == ppc* ]]; then
+	_have_mdoc="no"
+fi
+
 pre_configure() {
 	# Use mcs instead of the dead gmcs compiler
 	sed "s/gmcs/mcs/" -i configure.ac
@@ -21,5 +27,10 @@ pre_configure() {
 	# Don't build broken threadcheck module
 	sed "s/ENABLE_THREADCHECK, true/ENABLE_THREADCHECK, false/" -i configure.ac
 
+	# mdoc is not shipped on ppc64le and all BE because it needs roslyn
+	if [ "$_have_mdoc" = "no" ]; then
+		sed "s/enable_monodoc=yes/enable_monodoc=no/" -i configure.ac
+	fi
+
 	autoreconf -if
 }