package/systemd: add optional support for binfmt

Signed-off-by: Gabe Evans <gabe@hashrabbit.co>
[Thomas: rewrap Config.in help text.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/systemd/Config.in

@@ -84,6 +84,14 @@ config BR2_PACKAGE_SYSTEMD_JOURNAL_GATEWAY
 
 	  http://www.freedesktop.org/software/systemd/man/systemd-journal-gatewayd.service.html
 
+config BR2_PACKAGE_SYSTEMD_BINFMT
+	bool "enable binfmt tool"
+	help
+	  systemd-binfmt is an early boot service that registers
+	  additional binary formats for executables in the kernel.
+
+	  http://www.freedesktop.org/software/systemd/man/systemd-binfmt.service.html
+
 config BR2_PACKAGE_SYSTEMD_NETWORKD
 	bool "enable network manager"
 	help

package/systemd/systemd.mk

@@ -131,6 +131,12 @@ else
 SYSTEMD_CONF_OPTS += --disable-microhttpd
 endif
 
+ifeq ($(BR2_PACKAGE_SYSTEMD_BINFMT),y)
+SYSTEMD_CONF_OPTS += --enable-binfmt
+else
+SYSTEMD_CONF_OPTS += --disable-binfmt
+endif
+
 ifeq ($(BR2_PACKAGE_SYSTEMD_NETWORKD),y)
 SYSTEMD_CONF_OPTS += --enable-networkd
 define SYSTEMD_INSTALL_RESOLVCONF_HOOK