Upgrade to new upstream release 2.57.

Remove support for FreeBSD releases 6.X.

Allow build with IDN but without NLS (this requires that dns/libidn
is also built WITHOUT_NLS) to expose an upstream change. Useful for embedded
devices.

Warn user if this is requested but libidn needs NLS libraries
because in that case dnsmasq inherits the NLS dependencies from libidn.

Remove files/patch-aa, it was a preview patch from a 2.57 test release,
fixing a regression in 2.56 that caused hex constants to be rejected in
the configuratino if they contained the '*' wildcard.

Further upstream changes:
- use own header for DNS protocol, rather than using arpa/nameser.h
- correct ctype.h function argument casts (isdigit(), isxdigit(), etc.)
- Accept extra empty arguments on command line to avoid libvirt breakage.

dns/dnsmasq/Makefile

@@ -6,8 +6,7 @@
 #
 
 PORTNAME=	dnsmasq
-PORTVERSION=	2.56
-PORTREVISION=	1
+PORTVERSION=	2.57
 PORTEPOCH=	1
 CATEGORIES=	dns ipv6
 MASTER_SITES=	http://www.thekelleys.org.uk/dnsmasq/ \
@@ -33,10 +32,9 @@ MAKE_ARGS=	CC="${CC}" CFLAGS="${CFLAGS}" PREFIX="${PREFIX}"
 
 OPTIONS=	IPV6 "IPv6 support" on
 OPTIONS+=	DBUS "DBUS support" off
-OPTIONS+=	NLS  "NLS and IDN support" on
-# unfortunately, NLS and IDN are inseparable in dnsmasq 2.56, this
-# has been reported to Simon Kelley on 2009-10-01 and 2011-02-16
-# by the port maintainer.
+OPTIONS+=	NLS  "National Language Support (NLS, enables IDN)" on
+OPTIONS+=	IDN  "International Domain Names (IDN) WITHOUT NLS" off
+# unfortunately, NLS always enables IDN in dnsmasq 2.57
 
 .include <bsd.port.pre.mk>
 
@@ -53,19 +51,34 @@ USE_GETTEXT=	yes
 USE_GMAKE=	yes
 .else
 PLIST_SUB+=	NLS="@comment "
+.if defined(WITH_IDN)
+MAKE_ARGS+=	COPTS=-DHAVE_IDN
+LIB_DEPENDS+=	idn:${PORTSDIR}/dns/libidn
+.endif
 .endif
 
 .if defined(WITH_DBUS)
 LIB_DEPENDS+=	dbus-1:${PORTSDIR}/devel/dbus
 BUILD_DEPENDS=	pkg-config:${PORTSDIR}/devel/pkg-config
 CFLAGS+=	-DHAVE_DBUS
-.if ${OSVERSION} < 700000
-LDFLAGS+=	${PTHREAD_LIBS}
-.endif
 .endif
 
 USE_RC_SUBR=	dnsmasq.sh
 
+pre-configure:
+	@:
+.if defined(WITH_IDN)
+.if defined(WITHOUT_NLS)
+	@if ${OBJDUMP} -p ${LOCALBASE}/lib/libidn.so \
+		| ${EGREP} -q "NEEDED[[:space:]]+lib(intl|iconv)\.so" ; \
+	then ${ECHO} ; ${ECHO} 'WARNING: dns/libidn was compiled with NLS support!' ; \
+	${ECHO} 'Recompile libidn WITHOUT_NLS to get rid of NLS dependencies.' ; ${ECHO} ; \
+	fi
+.else
+	@${ECHO} 'WARNING: IDN and NLS enabled, building IDN WITH NLS.'
+.endif
+.endif
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/src/dnsmasq ${PREFIX}/sbin
 	${INSTALL_DATA} ${WRKSRC}/dnsmasq.conf.example ${PREFIX}/etc

dns/dnsmasq/distinfo

@@ -1,2 +1,2 @@
-SHA256 (dnsmasq-2.56.tar.lzma) = 36341d2534801cae3463489b79d912f9db8b5dbf5527efd69821a7984def2c33
-SIZE (dnsmasq-2.56.tar.lzma) = 331543
+SHA256 (dnsmasq-2.57.tar.lzma) = b35c5a31afce2b7c4bd62566d5dc87e1ce62d0d2ebd9c2baf15b5ea16bcc279d
+SIZE (dnsmasq-2.57.tar.lzma) = 333348

dns/dnsmasq/files/patch-aa

@@ -1,11 +0,0 @@
---- src/util.c	2011-01-18 22:23:57.000000000 +0000
-+++ src/util.c	2011-02-16 09:37:37.000000000 +0000
-@@ -379,7 +379,7 @@
-   while (maxlen == -1 || i < maxlen)
-     {
-       for (r = in; *r != 0 && *r != ':' && *r != '-'; r++)
--	if (!isxdigit((int)*r))
-+	if (*r != '*' && !isxdigit((int)*r))
- 	  return -1;
-       
-       if (*r == 0)