- Fix the usage of 'python' to get rid of the implicit lang/python

dependency
- lang/v8 requires python to build

Approved by:	portmgr (blanket)

lang/gjs/Makefile

@@ -18,7 +18,7 @@ CONFLICTS_BUILD=spidermonkey17-1.7.*
 
 USE_XZ=		yes
 USES=		gettext gmake pathfix pkgconfig shebangfix
-USE_PYTHON_BUILD=yes
+USE_PYTHON_BUILD=2
 USE_AUTOTOOLS=	libtool
 USE_GNOME=	cairo glib20 gnomeprefix introspection:build \
 		intlhack ltverhack
@@ -26,6 +26,8 @@ USE_LDCONFIG=	yes
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
+python_OLD_CMD=	/usr/bin/env python
+python_CMD=	/usr/bin/env python2
 SHEBANG_FILES=	scripts/make-tests
 
 NO_STAGE=	yes

lang/v8/Makefile

@@ -9,6 +9,7 @@ MASTER_SITES=	LOCAL/vanilla
 MAINTAINER=	vanilla@FreeBSD.org
 COMMENT=	Google\'s open source JavaScript engine
 
+BUILD_DEPENDS=	python:${PORTSDIR}/lang/python
 LIB_DEPENDS=	execinfo:${PORTSDIR}/devel/libexecinfo
 
 USES=		gmake