sys-process/anacron: Port to C23, fix musl build

Incorrect signal handler defs, missing compatibility dependency
on musl

Closes: https://bugs.gentoo.org/943949
Closes: https://bugs.gentoo.org/715952
Signed-off-by: NHOrus <jy6x2b32pie9@yahoo.com>
Part-of: https://codeberg.org/gentoo/gentoo/pulls/248
Merges: https://codeberg.org/gentoo/gentoo/pulls/248
Signed-off-by: Sam James <sam@gentoo.org>

sys-process/anacron/anacron-2.3-r6.ebuild

@@ -0,0 +1,77 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs flag-o-matic
+
+DESCRIPTION="A periodic command scheduler"
+HOMEPAGE="https://anacron.sourceforge.net/"
+SRC_URI="https://downloads.sourceforge.net/${PN}/${P}.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~riscv ~x86"
+
+DEPEND="
+	acct-group/cron
+	sys-process/cronbase
+	elibc_musl? ( sys-libs/obstack-standalone )
+"
+
+RDEPEND="
+	${DEPEND}
+	virtual/mta
+"
+
+BDEPEND="acct-group/cron"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-compile-fix-from-debian.patch
+	"${FILESDIR}"/${P}-headers.patch
+	"${FILESDIR}"/${P}-sighandlers.patch
+	"${FILESDIR}"/${P}-makefile.patch
+)
+
+src_prepare() {
+	default
+
+	sed -i \
+		-e '/^CFLAGS/{s:=:+=:;s:-O2::}' \
+		Makefile || die
+}
+
+src_configure() {
+	#715952
+	use elibc_musl && append-libs -lobstack
+
+	tc-export CC
+}
+
+src_install() {
+	# This does not work if the directory already exists.
+	diropts -m0750 -o root -g cron
+	keepdir /var/spool/${PN}
+
+	doman ${PN}tab.5 ${PN}.8
+	newinitd "${FILESDIR}/${PN}.rc6" "${PN}"
+	dodoc ChangeLog README TODO
+	dosbin "${PN}"
+
+	insinto /etc
+	doins "${FILESDIR}/${PN}tab"
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]] ; then
+		elog "Schedule the command \"anacron -s\" as a daily cron-job (preferably"
+		elog "at some early morning hour).  This will make sure that jobs are run"
+		elog "when the systems is left running for a night."
+		echo
+		elog "Update /etc/anacrontab to include what you want anacron to run."
+		echo
+		elog "You may wish to read the Gentoo Linux Cron Guide, which can be"
+		elog "found online at:"
+		elog "    https://wiki.gentoo.org/wiki/Cron"
+	fi
+}

sys-process/anacron/files/anacron-2.3-makefile.patch

@@ -0,0 +1,14 @@
+https://bugs.gentoo.org/715952
+Need to append `-lobstack` for musl build, can't stuff it in
+LDFLAGS due to `--as-needed`
+--- a/Makefile
++++ b/Makefile
+@@ -57,7 +57,7 @@
+ include $(csources:.c=.d)
+ 
+ anacron: $(objects)
+-	$(CC) $(LDFLAGS) $^ $(LOADLIBES) -o $@
++	$(CC) $(LDFLAGS) $^ $(LOADLIBES) $(LIBS) -o $@
+ 
+ %.o : %.c
+ 	$(CC) -c $(ALL_CPPFLAGS) $(CFLAGS) $< -o $@

sys-process/anacron/files/anacron-2.3-sighandlers.patch

@@ -0,0 +1,41 @@
+https://bugs.gentoo.org/943949
+Correct signal handler signatures.
+Also prevent unexpected environment modification
+by strdup'ing new environment. Mutes const qualifier
+discard warning, too.
+--- a/main.c
++++ b/main.c
+@@ -214,19 +214,19 @@
+ }
+ 
+ void
+-handle_sigalrm()
++handle_sigalrm(int)
+ {
+     got_sigalrm = 1;
+ }
+ 
+ void
+-handle_sigchld()
++handle_sigchld(int)
+ {
+     got_sigchld = 1;
+ }
+ 
+ void
+-handle_sigusr1()
++handle_sigusr1(int)
+ {
+     got_sigusr1 = 1;
+ }
+--- a/runjob.c
++++ b/runjob.c
+@@ -86,7 +86,7 @@
+ static void
+ xputenv(const char *s)
+ {
+-    if (putenv(s)) die_e("Can't set the environment");
++    if (putenv(strdup(s))) die_e("Can't set the environment");
+ }
+ 
+ static void