editors/cooledit: Adopt/Port improvements

Prepare to new release:

 - Add WWW project url
 - Build with clang
 - Use make instead of gmake
 - Remove unneeded patch (HAVE_MBRTOWC)
 - Clean compiler flags
 - Bump PORTREVISION

editors/cooledit/Makefile

@@ -1,28 +1,27 @@
 PORTNAME=	cooledit
 DISTVERSION=	3.17.28
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	editors
 MASTER_SITES=	SUNSITE/apps/editors/X/cooledit
 
-MAINTAINER=	ports@FreeBSD.org
-COMMENT=	Suite of utilities, including a GUI editor
+MAINTAINER=	eduardo@FreeBSD.org
+COMMENT=	CoolEdit Programmers Code Editor
+WWW=		https://github.com/paulsheer/cooledit
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		gettext gmake libtool python xorg # gettext is linked to despite .mo files having been deleted
-USE_GCC=	yes
+USES=		gettext-runtime libtool:build python xorg # gettext is linked to despite .mo files having been deleted
 USE_LDCONFIG=	yes
 USE_XORG=	x11 xt
+
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 
-CFLAGS+=	-DHAVE_MBRTOWC
-CPPFLAGS+=	-I${LOCALBASE}/include
-LDFLAGS+=	-lpthread -L${LOCALBASE}/lib
+LDFLAGS+=	-lpthread
 
-OPTIONS_DEFINE=	NEXT_LOOK
-NEXT_LOOK_DESC=	Enable NeXT look
+OPTIONS_DEFINE=			NEXT_LOOK
+NEXT_LOOK_DESC=			Enable NeXT look
 NEXT_LOOK_CONFIGURE_ENABLE=	NeXT-look
 
 post-patch: