net-misc/radvd: fix modern c issue in configure

Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 122 insertions, 0 deletions

diff --git a/net-misc/radvd/files/radvd-2.19-configure-c99.patch b/net-misc/radvd/files/radvd-2.19-configure-c99.patch
new file mode 100644
index 000000000000..38a6d070657f
--- /dev/null
+++ b/net-misc/radvd/files/radvd-2.19-configure-c99.patch
@@ -0,0 +1,46 @@
+https://github.com/radvd-project/radvd/commit/5acb1c64766dfaf37c9745632f99feecf11d1403
+
+From 5acb1c64766dfaf37c9745632f99feecf11d1403 Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Fri, 3 Feb 2023 02:33:13 +0000
+Subject: [PATCH] configure.ac: Fix -Wint-conversion warnings
+
+These become fatal with Clang 15 and may lead to incorrect configure
+test results.
+
+```
+-ignoreme: warning: incompatible pointer to integer conversion initializing 'int' with an expression of type 'uint16_t[8]' (aka 'unsigned short[8]') [-Wint-conversion]
++ignoreme: error: incompatible pointer to integer conversion initializing 'int' with an expression of type 'uint16_t[8]' (aka 'unsigned short[8]') [-Wint-conversion]
+ int u =  in6_u.s6_addr16;
+     ^    ~~~~~~~~~~~~~~~
+```
+
+Signed-off-by: Sam James <sam@gentoo.org>
+--- a/configure.ac
++++ b/configure.ac
+@@ -178,15 +178,19 @@ AC_HEADER_TIME
+ 
+ dnl Checks for typedefs, structures, and compiler characteristics.
+ AC_MSG_CHECKING(whether struct sockaddr_in6 has sin6_scope_id)
+-AC_TRY_COMPILE([#include <sys/types.h>
+-#include <netinet/in.h>], [static struct sockaddr_in6 ac_sin6; int ac_size = 
+-sizeof (ac_sin6.sin6_scope_id);], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_SIN6_SCOPE_ID],
++AC_TRY_COMPILE([#include <stdint.h>
++#include <sys/types.h>
++#include <netinet/in.h>], [
++static struct sockaddr_in6 ac_sin6;
++uint32_t ac_size = sizeof (ac_sin6.sin6_scope_id);
++], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_SIN6_SCOPE_ID],
+ 1, [whether struct sockaddr_in6 has sin6_scope_id])],
+ AC_MSG_RESULT(no))
+ 
+ AC_MSG_CHECKING(whether struct in6_addr has u6_addrXX and defines s6_addrXX)
+-AC_TRY_COMPILE([#include <netinet/in.h>], [static struct in6_addr in6_u; 
+-int u =  in6_u.s6_addr16;], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_IN6_ADDR_S6_ADDR],
++AC_TRY_COMPILE([#include <stdint.h>
++#include <netinet/in.h>], [static struct in6_addr in6_u;
++uint16_t u =  in6_u.s6_addr16[0];], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_IN6_ADDR_S6_ADDR],
+ 1, [whether struct in6_addr has u6_addrXX and defines s6_addrXX])],
+ AC_MSG_RESULT(no))
+ 
+
diff --git a/net-misc/radvd/radvd-2.19-r6.ebuild b/net-misc/radvd/radvd-2.19-r6.ebuild
new file mode 100644
index 000000000000..1d81dd69fda5
--- /dev/null
+++ b/net-misc/radvd/radvd-2.19-r6.ebuild
@@ -0,0 +1,76 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools readme.gentoo-r1 systemd toolchain-funcs
+
+DESCRIPTION="Linux IPv6 Router Advertisement Daemon"
+HOMEPAGE="https://radvd.litech.org/"
+SRC_URI="https://v6web.litech.org/radvd/dist/${P}.tar.xz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~riscv ~sparc ~x86"
+IUSE="selinux test"
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	sys-devel/bison
+	sys-devel/flex
+	virtual/pkgconfig"
+DEPEND="test? ( dev-libs/check )"
+RDEPEND="
+	acct-group/radvd
+	acct-user/radvd
+	selinux? ( sec-policy/selinux-radvd )"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-musl-include.patch
+	"${FILESDIR}"/${P}-clang16.patch
+	"${FILESDIR}"/${P}-configure-c99.patch
+)
+
+src_prepare() {
+	default
+
+	# Drop once clang16 patch is in a release
+	eautoreconf
+}
+
+src_configure() {
+	# Needs reentrant functions (yyset_in), bug #884375
+	export LEX=flex
+
+	econf --with-pidfile=/run/radvd/radvd.pid \
+		--with-systemdsystemunitdir=no \
+		$(use_with test check)
+}
+
+src_compile() {
+	emake AR="$(tc-getAR)"
+}
+
+src_install() {
+	HTML_DOCS=( INTRO.html )
+	default
+	dodoc radvd.conf.example
+
+	newinitd "${FILESDIR}"/${PN}-2.15.init ${PN}
+	newconfd "${FILESDIR}"/${PN}.conf ${PN}
+
+	systemd_dounit "${FILESDIR}"/${PN}.service
+
+	DISABLE_AUTOFORMATTING=1
+	local DOC_CONTENTS="Please create a configuration file ${EPREFIX}/etc/radvd.conf.
+See ${EPREFIX}/usr/share/doc/${PF} for an example.
+
+grsecurity users should allow a specific group to read /proc
+and add the radvd user to that group, otherwise radvd may
+segfault on startup."
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	readme.gentoo_print_elog
+}