--- /dev/null
+commit 5007d7067918fb3d950d34c01d059e5222db679a
+Author: Aric Belsito <lluixhi@gmail.com>
+AuthorDate: Mon Dec 4 00:10:29 2017 +0100
+Commit: Thomas Deutschmann <whissi@gentoo.org>
+CommitDate: Wed Jul 11 01:33:28 2018 +0200
+
+ Fix build on MUSL
+
+ Add missing AI_IDN and NI_IDN declarations.
+
+ Bug: https://bugs.gentoo.org/503914
+ Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>
+
+diff --git a/arping.c b/arping.c
+index c2f2129..d753345 100644
+--- a/arping.c
++++ b/arping.c
+@@ -44,6 +44,13 @@
+
+ #ifdef USE_IDN
+ #include <locale.h>
++
++#ifndef AI_IDN
++#define AI_IDN 0x0040
++#endif
++#ifndef AI_CANONIDN
++#define AI_CANONIDN 0x0080
++#endif
+ #endif
+
+ #include "SNAPSHOT.h"
+diff --git a/ping.h b/ping.h
+index 3e09685..1e51c67 100644
+--- a/ping.h
++++ b/ping.h
+@@ -37,6 +37,17 @@
+
+ #ifdef USE_IDN
+ #include <idn2.h>
++
++#ifndef AI_IDN
++#define AI_IDN 0x0040
++#endif
++#ifndef AI_CANONIDN
++#define AI_CANONIDN 0x0080
++#endif
++#ifndef NI_IDN
++#define NI_IDN 32
++#endif
++
+ #define getaddrinfo_flags (AI_CANONNAME | AI_IDN | AI_CANONIDN)
+ #define getnameinfo_flags NI_IDN
+ #else
+diff --git a/tracepath.c b/tracepath.c
+index 53bda16..9558e49 100644
+--- a/tracepath.c
++++ b/tracepath.c
+@@ -29,6 +29,14 @@
+
+ #ifdef USE_IDN
+ #include <locale.h>
++
++#ifndef AI_IDN
++#define AI_IDN 0x0040
++#endif
++#ifndef NI_IDN
++#define NI_IDN 32
++#endif
++
+ #define getnameinfo_flags NI_IDN
+ #else
+ #define getnameinfo_flags 0
+diff --git a/traceroute6.c b/traceroute6.c
+index a1022f9..ab34615 100644
+--- a/traceroute6.c
++++ b/traceroute6.c
+@@ -246,6 +246,10 @@
+ #ifdef USE_IDN
+ #include <locale.h>
+
++#ifndef NI_IDN
++#define NI_IDN 32
++#endif
++
+ #define ADDRINFO_IDN_FLAGS AI_IDN
+ #define getnameinfo_flags NI_IDN
+ #else
--- /dev/null
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# For released versions, we precompile the man/html pages and store
+# them in a tarball on our mirrors. This avoids ugly issues while
+# building stages, and reduces depedencies.
+# To regenerate man/html pages emerge iputils-99999999[doc] with
+# EGIT_COMMIT set to release tag and tar ${S}/doc folder.
+
+EAPI="6"
+
+inherit flag-o-matic toolchain-funcs fcaps
+
+MY_PV="${PV/_pre/}"
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-20180629-musl.patch
+)
+
+if [[ ${PV} == "99999999" ]] ; then
+ EGIT_REPO_URI="https://github.com/iputils/iputils.git"
+ inherit git-r3
+else
+ SRC_URI="https://github.com/iputils/iputils/archive/s${MY_PV}.tar.gz -> ${P}.tar.gz
+ https://dev.gentoo.org/~whissi/dist/iputils/${PN}-manpages-${MY_PV}.tar.xz"
+ KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~ppc-aix ~amd64-linux ~x86-linux"
+fi
+
+DESCRIPTION="Network monitoring tools including ping and ping6"
+HOMEPAGE="https://wiki.linuxfoundation.org/networking/iputils"
+
+LICENSE="BSD GPL-2+ rdisc"
+SLOT="0"
+IUSE="+arping caps clockdiff doc gcrypt idn ipv6 libressl nettle rarpd rdisc SECURITY_HAZARD ssl static tftpd tracepath traceroute"
+
+LIB_DEPEND="caps? ( sys-libs/libcap[static-libs(+)] )
+ idn? ( net-dns/libidn2:=[static-libs(+)] )
+ ipv6? (
+ ssl? (
+ gcrypt? ( dev-libs/libgcrypt:0=[static-libs(+)] )
+ !gcrypt? (
+ nettle? ( dev-libs/nettle[static-libs(+)] )
+ !nettle? (
+ libressl? ( dev-libs/libressl:0=[static-libs(+)] )
+ !libressl? ( dev-libs/openssl:0=[static-libs(+)] )
+ )
+ )
+ )
+ )
+"
+RDEPEND="arping? ( !net-misc/arping )
+ rarpd? ( !net-misc/rarpd )
+ traceroute? ( !net-analyzer/traceroute )
+ !static? ( ${LIB_DEPEND//\[static-libs(+)]} )"
+DEPEND="${RDEPEND}
+ static? ( ${LIB_DEPEND} )
+ virtual/os-headers
+"
+if [[ ${PV} == "99999999" ]] ; then
+ DEPEND+="app-text/docbook-xml-dtd:4.2
+ app-text/docbook-xml-dtd:4.5
+ app-text/docbook-xsl-stylesheets
+ dev-libs/libxslt:0
+ "
+fi
+
+[ "${PV}" = "99999999" ] || S="${WORKDIR}/${PN}-s${PV}"
+
+src_prepare() {
+ use SECURITY_HAZARD && PATCHES+=( "${FILESDIR}"/${PN}-20150815-nonroot-floodping.patch )
+
+ default
+}
+
+src_configure() {
+ use static && append-ldflags -static
+
+ TARGETS=(
+ ping
+ $(for v in arping clockdiff rarpd rdisc tftpd tracepath ; do usev ${v} ; done)
+ )
+ if use ipv6 ; then
+ TARGETS+=(
+ $(usex traceroute 'traceroute6' '')
+ )
+ fi
+
+ myconf=(
+ USE_CRYPTO=no
+ USE_GCRYPT=no
+ USE_NETTLE=no
+ )
+
+ if use ipv6 && use ssl ; then
+ myconf=(
+ USE_CRYPTO=yes
+ USE_GCRYPT=$(usex gcrypt)
+ USE_NETTLE=$(usex nettle)
+ )
+ fi
+}
+
+src_compile() {
+ tc-export CC
+ emake \
+ USE_CAP=$(usex caps) \
+ USE_IDN=$(usex idn) \
+ IPV4_DEFAULT=$(usex ipv6 'no' 'yes') \
+ TARGETS="${TARGETS[*]}" \
+ ${myconf[@]}
+
+ if [[ ${PV} == "99999999" ]] ; then
+ emake man
+
+ use doc && emake html
+ fi
+}
+
+src_install() {
+ into /
+ dobin ping
+ dosym ping /bin/ping4
+ if use ipv6 ; then
+ dosym ping /bin/ping6
+ dosym ping.8 /usr/share/man/man8/ping6.8
+ fi
+ doman doc/ping.8
+
+ if use arping ; then
+ dobin arping
+ doman doc/arping.8
+ fi
+
+ into /usr
+
+ if use tracepath ; then
+ dosbin tracepath
+ doman doc/tracepath.8
+ dosym tracepath /usr/sbin/tracepath4
+ fi
+
+ local u
+ for u in clockdiff rarpd rdisc tftpd ; do
+ if use ${u} ; then
+ case ${u} in
+ clockdiff) dobin ${u};;
+ *) dosbin ${u};;
+ esac
+ doman doc/${u}.8
+ fi
+ done
+
+ if use tracepath && use ipv6 ; then
+ dosym tracepath /usr/sbin/tracepath6
+ dosym tracepath.8 /usr/share/man/man8/tracepath6.8
+ fi
+
+ if use traceroute && use ipv6 ; then
+ dosbin traceroute6
+ doman doc/traceroute6.8
+ fi
+
+ if use rarpd ; then
+ newinitd "${FILESDIR}"/rarpd.init.d rarpd
+ newconfd "${FILESDIR}"/rarpd.conf.d rarpd
+ fi
+
+ dodoc INSTALL.md
+
+ use doc && dodoc doc/*.html
+}
+
+pkg_postinst() {
+ fcaps cap_net_raw \
+ bin/ping \
+ $(usex arping 'bin/arping' '') \
+ $(usex clockdiff 'usr/bin/clockdiff' '')
+}