pppd: enable ipv6 support if toolchain supports it

Closes #1273

Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

CHANGES

@@ -8,6 +8,10 @@
 	Updated/fixed packages: busybox, dosfstools, e2fsprogs,
 	mtd-utils, squashfs
 
+	Issues resolved (http://bugs.uclibc.org):
+
+	#1273 BR2_INET_IPV6 does not enable IPv6 in pppd
+
 2010.02, Release February 26th, 2010:
 
 	Fixes all over the tree.

package/pppd/pppd.mk

@@ -17,6 +17,7 @@ $(DL_DIR)/$(PPPD_SOURCE):
 
 pppd-source: $(DL_DIR)/$(PPPD_SOURCE)
 
+PPPD_OPTIONS_$(BR2_INET_IPV6) += HAVE_INET6=y
 PPPD_OPTIONS_$(BR2_PACKAGE_PPPD_FILTER) += FILTER=y
 
 $(PPPD_DIR)/.unpacked: $(DL_DIR)/$(PPPD_SOURCE)