net-fs/samba: Apply Flatcar changes

- Add a minimal USE flag for only installing libraries
  - Change the Perl and Python run-time deps to build-time only
  - Drop a bunch of dependencies with broken cross-compilation
  - Enable using bundled libraries in their place
  - Disable building libraries requiring Python

Original-by: David Michael <dm0@redhat.com>
https://github.com/flatcar-linux/coreos-overlay/commit/8445f8b4386a

sdk_container/src/third_party/coreos-overlay/net-fs/samba/samba-4.11.13-r1.ebuild

@@ -26,6 +26,7 @@ SLOT="0"
 IUSE="acl addc addns ads ceph client cluster cups debug dmapi fam gpg iprint
 json ldap pam profiling-data python quota selinux snapper syslog
 system-heimdal +system-mitkrb5 systemd test winbind zeroconf"
+IUSE+=" +minimal"  # Flatcar: Only install libraries, not executables.
 
 MULTILIB_WRAPPED_HEADERS=(
 	/usr/include/samba-4.0/policy.h
@@ -40,32 +41,22 @@ MULTILIB_WRAPPED_HEADERS=(
 
 CDEPEND="
 	>=app-arch/libarchive-3.1.2[${MULTILIB_USEDEP}]
-	dev-lang/perl:=
 	dev-libs/libbsd[${MULTILIB_USEDEP}]
-	dev-libs/libtasn1[${MULTILIB_USEDEP}]
+	!minimal? ( dev-libs/libtasn1[${MULTILIB_USEDEP}] )
 	dev-libs/popt[${MULTILIB_USEDEP}]
 	>=net-libs/gnutls-3.2.0[${MULTILIB_USEDEP}]
-	net-libs/libnsl:=[${MULTILIB_USEDEP}]
 	sys-libs/e2fsprogs-libs[${MULTILIB_USEDEP}]
-	>=sys-libs/ldb-2.0.12[ldap(+)?,python?,${PYTHON_SINGLE_USEDEP},${MULTILIB_USEDEP}]
-	<sys-libs/ldb-2.1.0[ldap(+)?,python?,${PYTHON_SINGLE_USEDEP},${MULTILIB_USEDEP}]
 	sys-libs/libcap
 	sys-libs/ncurses:0=
 	sys-libs/readline:0=
-	>=sys-libs/talloc-2.2.0[python?,${PYTHON_SINGLE_USEDEP},${MULTILIB_USEDEP}]
-	>=sys-libs/tdb-1.4.2[python?,${PYTHON_SINGLE_USEDEP},${MULTILIB_USEDEP}]
-	>=sys-libs/tevent-0.10.0[python?,${PYTHON_SINGLE_USEDEP},${MULTILIB_USEDEP}]
 	sys-libs/zlib[${MULTILIB_USEDEP}]
 	virtual/libiconv
 	pam? ( sys-libs/pam )
 	acl? ( virtual/acl )
-	$(python_gen_cond_dep "
+	addns? (
-		dev-python/subunit[\${PYTHON_MULTI_USEDEP},${MULTILIB_USEDEP}]
+		net-dns/bind-tools[gssapi]
-		addns? (
+		dev-python/dnspython
-			net-dns/bind-tools[gssapi]
+	)
-			dev-python/dnspython:=[\${PYTHON_MULTI_USEDEP}]
-		)
-	")
 	ceph? ( sys-cluster/ceph )
 	cluster? (
 		net-libs/rpcsvc-proto
@@ -87,6 +78,7 @@ CDEPEND="
 DEPEND="${CDEPEND}
 	${PYTHON_DEPS}
 	app-text/docbook-xsl-stylesheets
+	dev-lang/perl:=
 	dev-libs/libxslt
 	>=dev-util/cmocka-1.1.1[${MULTILIB_USEDEP}]
 	net-libs/libtirpc[${MULTILIB_USEDEP}]
@@ -166,9 +158,6 @@ src_prepare() {
 		sed -i -e '/"iso8601":/d' "${S}"/third_party/wscript || die
 	fi
 
-	## ugly hackaround for bug #592502
-	#cp /usr/include/tevent_internal.h "${S}"/lib/tevent/ || die
-
 	sed -e 's:<gpgme\.h>:<gpgme/gpgme.h>:' \
 		-i source4/dsdb/samdb/ldb_modules/password_hash.c \
 		|| die
@@ -185,6 +174,9 @@ multilib_src_configure() {
 		bundled_libs="heimbase,heimntlm,hdb,kdc,krb5,wind,gssapi,hcrypto,hx509,roken,asn1,com_err,NONE"
 	fi
 
+	# Flatcar: Don't depend on tons of new packages with broken cross-compilation support.
+	bundled_libs=ALL
+
 	local myconf=(
 		--enable-fhs
 		--sysconfdir="${EPREFIX}/etc"
@@ -198,6 +190,7 @@ multilib_src_configure() {
 		--nopyc
 		--nopyo
 		--without-winexe
+		--disable-python  # Flatcar: Don't build libraries requiring Python.
 		$(multilib_native_use_with acl acl-support)
 		$(multilib_native_usex addc '' '--without-ad-dc')
 		$(multilib_native_use_with addns dnsupdate)
@@ -275,7 +268,9 @@ multilib_src_install() {
 		newinitd "${CONFDIR}/samba4.initd-r1" samba
 		newconfd "${CONFDIR}/samba4.confd" samba
 
-		systemd_dotmpfilesd "${FILESDIR}"/samba.conf
+		if ! use minimal ; then
+			systemd_dotmpfilesd "${FILESDIR}"/samba.conf
+		fi
 		use addc || rm "${D}/$(systemd_get_systemunitdir)/samba.service" || die
 
 		# Preserve functionality for old gentoo-specific unit names
@@ -295,6 +290,19 @@ multilib_src_install() {
 	keepdir /var/lib/ctdb
 	keepdir /var/lib/samba/{bind-dns,private}
 	keepdir /var/log/samba
+
+	rm -f "${ED%/}"/etc/samba/*
+	rm -f "${ED%/}"/usr/lib*/samba/ldb/*
+	if use minimal ; then
+		mv "${ED%/}"/usr/bin/net "${T}"/
+		rm -f "${ED%/}"/usr/bin/* "${ED%/}"/usr/sbin/*
+		mv "${T}"/net "${ED%/}"/usr/bin/net
+		rm -rf ${ED%/}/lib*/security
+		rm -rf ${ED%/}/usr/lib/systemd
+		rm -rf ${ED%/}/usr/lib*/perl*
+		rm -rf ${ED%/}/usr/lib*/python*
+		rm -rf ${ED%/}/var
+	fi
 }
 
 multilib_src_install_all() {