#############################################################
#
# netsnmp
#
#############################################################
NETSNMP_VERSION:=5.4.2.1
NETSNMP_SITE:=http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/net-snmp/
NETSNMP_DIR:=$(BUILD_DIR)/net-snmp-$(NETSNMP_VERSION)
NETSNMP_SOURCE:=net-snmp-$(NETSNMP_VERSION).tar.gz

NETSNMP_WO_TRANSPORT:=
ifneq ($(BR2_INET_IPX),y)
NETSNMP_WO_TRANSPORT+= IPX
endif
ifneq ($(BR2_INET_IPV6),y)
NETSNMP_WO_TRANSPORT+= UDPIPv6 TCPIPv6
endif

$(DL_DIR)/$(NETSNMP_SOURCE):
	$(call DOWNLOAD,$(NETSNMP_SITE),$(NETSNMP_SOURCE))

$(NETSNMP_DIR)/.unpacked: $(DL_DIR)/$(NETSNMP_SOURCE)
	$(ZCAT) $(DL_DIR)/$(NETSNMP_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
	toolchain/patch-kernel.sh $(NETSNMP_DIR) package/netsnmp/ \*$(NETSNMP_VERSION)\*.patch
	$(CONFIG_UPDATE) $(@D)
	touch $@

ifeq ($(BR2_ENDIAN),"BIG")
NETSNMP_ENDIAN=big
else
NETSNMP_ENDIAN=little
endif

ifeq ($(BR2_HAVE_PERL),y)
NETSNMP_CONFIGURE_PERL_ENV:=\
		PERLCC="$(TARGET_CC)"
NETSNMP_CONFIGURE_PERL:=\
		--disable-embedded-perl \
		--disable-perl-cc-checks \
		--enable-as-needed
else
NETSNMP_CONFIGURE_PERL_ENV:=
NETSNMP_CONFIGURE_PERL:=\
		--disable-embedded-perl \
		--disable-perl-cc-checks \
		--without-perl-modules
endif

ifeq ($(BR2_PACKAGE_OPENSSL),y)
NETSNMP_CONFIGURE_OPENSSL:=--with-openssl=$(STAGING_DIR)/usr/include/openssl
else
NETSNMP_CONFIGURE_OPENSSL:=--without-openssl
endif

ifneq ($(findstring y,$(BR2_HAVE_MANPAGES)$(BR2_HAVE_INFOPAGES)),y)
NETSNMP_DOCS:=--disable-manuals
endif

$(NETSNMP_DIR)/.configured: $(NETSNMP_DIR)/.unpacked
	(cd $(NETSNMP_DIR); rm -f config.cache; \
		autoconf && \
		ac_cv_NETSNMP_CAN_USE_SYSCTL=yes \
		$(NETSNMP_CONFIGURE_PERL_ENV) \
		$(TARGET_CONFIGURE_OPTS) \
		$(TARGET_CONFIGURE_ARGS) \
		./configure \
		--target=$(GNU_TARGET_NAME) \
		--host=$(GNU_TARGET_NAME) \
		--build=$(GNU_HOST_NAME) \
		--with-cc=$(TARGET_CROSS)gcc \
		--with-linkcc=$(TARGET_CROSS)gcc \
		--with-ar=$(TARGET_CROSS)ar \
		--with-cflags="$(TARGET_CFLAGS)" \
		--with-ldflags="$(TARGET_LDFLAGS)" \
		--with-endianness=$(NETSNMP_ENDIAN) \
		--with-persistent-directory=/var/lib/snmp \
		--enable-ucd-snmp-compatibility \
		--enable-shared \
		--disable-static \
		--with-logfile=none \
		--without-rpm \
		$(NETSNMP_CONFIGURE_OPENSSL) \
		$(NETSNMP_DOCS) \
		$(NETSNMP_CONFIGURE_PERL) \
		--without-dmalloc \
		--without-efence \
		--without-rsaref \
		--with-sys-contact="root" \
		--with-sys-location="Unknown" \
		--with-mib-modules="host smux ucd-snmp/dlmod" \
		--with-out-transports="$(NETSNMP_WO_TRANSPORT)" \
		--with-defaults \
		--disable-debugging \
		--prefix=/usr \
		--sysconfdir=/etc \
		--enable-mini-agent \
		--without-kmem-usage \
		$(DISABLE_IPV6) \
	)
	touch $@

$(NETSNMP_DIR)/agent/snmpd: $(NETSNMP_DIR)/.configured
	$(MAKE1) -C $(NETSNMP_DIR)
	touch -c $@

$(TARGET_DIR)/usr/sbin/snmpd: $(NETSNMP_DIR)/agent/snmpd
	$(MAKE) PREFIX=$(TARGET_DIR)/usr \
	    prefix=$(TARGET_DIR)/usr \
	    exec_prefix=$(TARGET_DIR)/usr \
	    persistentdir=$(TARGET_DIR)/var/lib/snmp \
	    includedir=$(STAGING_DIR)/usr/include/net-snmp \
	    ucdincludedir=$(STAGING_DIR)/usr/include/ucd-snmp \
	    -C $(NETSNMP_DIR) install
	rm -rf $(TARGET_DIR)/usr/share/doc
ifneq ($(BR2_HAVE_MANPAGES),y)
	rm -rf $(TARGET_DIR)/usr/share/man
endif
ifneq ($(BR2_HAVE_INFOPAGES),y)
	rm -rf $(TARGET_DIR)/usr/share/info
endif
	# Copy the .conf files.
	$(INSTALL) -D -m 0644 $(NETSNMP_DIR)/EXAMPLE.conf $(TARGET_DIR)/etc/snmp/snmpd.conf
	-mv $(TARGET_DIR)/usr/share/snmp/mib2c*.conf $(TARGET_DIR)/etc/snmp
	# Remove the unsupported snmpcheck program
	rm -f $(TARGET_DIR)/usr/bin/snmpcheck
	# Install the "broken" headers
	$(INSTALL) -D -m 0644 $(NETSNMP_DIR)/agent/mibgroup/struct.h $(STAGING_DIR)/usr/include/net-snmp/agent/struct.h
	$(INSTALL) -D -m 0644 $(NETSNMP_DIR)/agent/mibgroup/util_funcs.h $(STAGING_DIR)/usr/include/net-snmp/util_funcs.h
	$(INSTALL) -D -m 0644 $(NETSNMP_DIR)/agent/mibgroup/mibincl.h $(STAGING_DIR)/usr/include/net-snmp/library/mibincl.h
	$(INSTALL) -D -m 0644 $(NETSNMP_DIR)/agent/mibgroup/header_complex.h $(STAGING_DIR)/usr/include/net-snmp/agent/header_complex.h
	$(INSTALL) -D -m 0755 package/netsnmp/S59snmpd $(TARGET_DIR)/etc/init.d/S59snmpd

netsnmp: $(if $(BR2_PACKAGE_OPENSSL),openssl) $(TARGET_DIR)/usr/sbin/snmpd

netsnmp-headers: $(TARGET_DIR)/usr/include/net-snmp/net-snmp-config.h
	$(INSTALL) -d $(TARGET_DIR)/usr/include/net-snmp
	cp -a $(STAGING_DIR)/usr/include/net-snmp $(TARGET_DIR)/usr/include/net-snmp
	cp -a $(STAGING_DIR)/usr/include/ucd-snmp $(TARGET_DIR)/usr/include/net-snmp

netsnmp-source: $(DL_DIR)/$(NETSNMP_SOURCE)

netsnmp-clean:
	-$(MAKE) PREFIX=$(TARGET_DIR) INSTALL_PREFIX=$(TARGET_DIR) DESTDIR=$(TARGET_DIR) CC=$(TARGET_CC) -C $(NETSNMP_DIR) uninstall
	-$(MAKE) -C $(NETSNMP_DIR) clean
	-rm -rf $(TARGET_DIR)/etc/snmp/{snmpd{,trapd},mib2c*}.conf \
		$(TARGET_DIR)/etc/default/snmpd \
		$(TARGET_DIR)/usr/include/net-snmp

netsnmp-dirclean:
	rm -rf $(NETSNMP_DIR)

#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(BR2_PACKAGE_NETSNMP),y)
TARGETS+=netsnmp
endif