net/zerotier: build on arm and 10.4 x86/x64 & improve compiler settings

- use improved C++14 settings contributed by jbeich@
- correct LICENSE_FILES via mat@ and jbeich@
- fixes ARM build from PR#231335
- submitted by Vincent Milum <freebsd@darkain.com>
- upstream zerotier/ZeroTierOne#848

Submitted by:	Vincent Milum <freebsd@darkain.com>
Reported by:	jbeich
Approved by:	jrm (mentor)
Obtained from:	zerotier/ZeroTierOne#848
Differential Revision:	https://reviews.freebsd.org/D16880

net/zerotier/Makefile

@@ -3,21 +3,20 @@
 
 PORTNAME=	zerotier
 DISTVERSION=	1.2.12
+PORTREVISION=	1
 CATEGORIES=	net
 
 MAINTAINER=	dch@FreeBSD.org
 COMMENT=	Network virtualization everywhere
 
-LICENSE=	GPLv3 MIT PD BSD3CLAUSE APACHE20
+LICENSE=	GPLv3+ MIT PD
 LICENSE_COMB=	multi
-LICENSE_FILE=	${WRKSRC}/LICENSE.GPL-3
+LICENSE_FILE_GPLv3+ =${WRKSRC}/LICENSE.GPL-3
+LICENSE_FILE_MIT=${WRKSRC}/ext/json/LICENSE.MIT
 
-BROKEN_armv6=		fails to link: Source object ext/arm32-neon-salsa2012-asm/salsa2012.o has EABI version 0, but target zerotier-one has EABI version 5
-BROKEN_armv7=		fails to link: Source object ext/arm32-neon-salsa2012-asm/salsa2012.o has EABI version 0, but target zerotier-one has EABI version 5
 BROKEN_powerpc64=	fails to compile: clang: not found
-BROKEN_FreeBSD_10_i386=	fails to compile: clang++: error: unable to execute command: Segmentation fault (core dumped)
 
-USES=		gmake compiler:c11
+USES=		gmake compiler:c++14-lang
 USE_RC_SUBR=	zerotier
 
 USE_GITHUB=	yes

net/zerotier/files/patch-Makefile

@@ -0,0 +1,11 @@
+--- Makefile.orig	2018-09-13 09:39:16 UTC
++++ Makefile
+@@ -11,8 +11,6 @@ ifeq ($(OSTYPE),Linux)
+ endif
+
+ ifeq ($(OSTYPE),FreeBSD)
+-	CC=clang
+-	CXX=clang++
+ 	ZT_BUILD_PLATFORM=7
+ 	include make-bsd.mk
+ endif

net/zerotier/files/patch-ext_arm32-neon-salsa2012-asm_salsa2012.h

@@ -0,0 +1,14 @@
+--- ext/arm32-neon-salsa2012-asm/salsa2012.h.orig	2018-07-27 21:14:09 UTC
++++ ext/arm32-neon-salsa2012-asm/salsa2012.h
+@@ -5,8 +5,10 @@
+ #include <sys/auxv.h>
+ #include <asm/hwcap.h>
+ #define zt_arm_has_neon() ((getauxval(AT_HWCAP) & HWCAP_NEON) != 0)
+-#else
++#elif defined(__ARM_NEON__) || defined(__ARM_NEON)
+ #define zt_arm_has_neon() (true)
++#else
++#define zt_arm_has_neon() (false)
+ #endif
+
+ #ifdef __cplusplus

net/zerotier/files/patch-make-bsd.mk

@@ -1,11 +1,11 @@
---- make-bsd.mk.orig	2018-05-18 08:50:17 UTC
+--- make-bsd.mk.orig	2018-09-13 10:12:22 UTC
 +++ make-bsd.mk
 @@ -159,7 +159,7 @@ clean:
  	rm -rf *.a *.o node/*.o controller/*.o osdep/*.o service/*.o ext/http-parser/*.o build-* zerotier-one zerotier-idtool zerotier-selftest zerotier-cli $(ONE_OBJS) $(CORE_OBJS)
 
  debug:	FORCE
 -	gmake -j 4 ZT_DEBUG=1
-+	$(MAKE) -j ZT_DEBUG=1
++	$(MAKE) -j 4 ZT_DEBUG=1
 
  install:	one
  	rm -f /usr/local/sbin/zerotier-one