devel/libsoup: Massage features and options

- From PR 235207 comes a patch from mi@ to use NTLM if it's there.
  Unfortunately, the switch to Meson has made this run-time-option
  a build-time-check, so the original patch isn't directly useful.
  Make samba a build-time dep, so that the code is enabled; there
  is a run-time check if the NTLM executable is available.
- From PR 231160 comes a patch to configure different kinds of
  GSSAPI. That too doesn't apply with the current Meson build,
  but the general idea does.

Build-tested in 8 configurations (but libsoup is nice that everything
is #ifdeffed internally, so there's no plist or other visible changes)

While here, add WWW line.

PR:		235207 231160
Reported by:	mi
Reported by:	Sergey Akhmatov

devel/libsoup/Makefile

@@ -2,6 +2,7 @@
 
 PORTNAME=	libsoup
 PORTVERSION=	2.72.0
+PORTREVISION=	1
 CATEGORIES=	devel gnome
 MASTER_SITES=	GNOME
 DIST_SUBDIR=	gnome
@@ -19,8 +20,23 @@ RUN_DEPENDS=	glib-networking>=2.29.18:net/glib-networking
 
 PORTSCOUT=	limitw:1,even
 
+OPTIONS_SINGLE=			GSSAPI	
+OPTIONS_SINGLE_GSSAPI=		GSSAPI_BASE GSSAPI_HEIMDAL GSSAPI_MIT GSSAPI_NONE
+OPTIONS_DEFAULT=		GSSAPI_${${SSL_DEFAULT} == base :?BASE :NONE}
+
+GSSAPI_BASE_USES=		gssapi
+GSSAPI_MIT_MESON_ON=		-Dgssapi=enabled -Dkrb5_config=${KRB5CONFIG}
+
+GSSAPI_MIT_USES=		gssapi:heimdal
+GSSAPI_MIT_MESON_ON=		-Dgssapi=enabled -Dkrb5_config=${KRB5CONFIG}
+
+GSSAPI_MIT_USES=		gssapi:mit
+GSSAPI_MIT_MESON_ON=		-Dgssapi=enabled -Dkrb5_config=${KRB5CONFIG}
+
+GSSAPI_NONE_MESON_DISABLED=	gssapi
+
 USES=		gettext gnome localbase meson \
-		pkgconfig python:3.6+,build sqlite ssl tar:xz
+		pkgconfig python:3.6+,build samba:build sqlite ssl tar:xz
 USE_GNOME=	glib20 intlhack introspection:build \
 		libxml2
 USE_LDCONFIG=	yes
@@ -29,7 +45,7 @@ MESON_ARGS=	-Dvapi=disabled \
 		-Dtests=false \
 		-Dgnome=true \
 		-Dbrotli=disabled \
-		-Dntlm=disabled
+		-Dntlm=enabled
 
 LIBVERSION=	1.11.0
 PLIST_SUB=	VERSION="2.4" LIBVERSION=${LIBVERSION}

devel/libsoup/pkg-descr

@@ -14,3 +14,5 @@ Features:
   * SSL Support using OpenSSL
   * Apache module server support
   * Client digest authentication
+
+WWW: https://libsoup.org/