Weird bmake behaviour from within installworld

[Ollivier Robert]

According to Ollivier Robert on Sun, Aug 03, 2014 at 09:35:57PM +0200:
> I'm source upgrading a machine from 9.2-RC3 up to stable/10.  buildworld, buildkernel and installkernel went fine.  "installworld" is failing with this weird issue:
> http://pastebin.com/gDpee7Ws
> 
> /etc/{make,src}.conf
> http://pastebin.com/hQxPJvML

OK, after updating my sources up to stable/10 as of yesterday, buildworld is now failing with this:

===> usr.sbin/unbound/daemon (all)
cc  -I/usr/src/usr.sbin/unbound/daemon/../../../contrib/unbound -I/usr/src/usr.sbin/unbound/daemon/../../../contrib/ldns -std=gnu99 -Qunused-arguments  -fstack-protector -Wsystem-headers -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wmissing-variable-declarations -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable  -L/usr/obj/usr/src/tmp/usr/lib/private -rpath /usr/lib/private -o unbound acl_list.o cachedump.o daemon.o remote.o stats.o unbound.o worker.o -lunbound -lldns -lutil -lssl -lcrypto -lpthread
daemon.o: In function `daemon_delete':
/usr/src/usr.sbin/unbound/daemon/../../../contrib/unbound/daemon/daemon.c:(.text+0xf72): undefined reference to `ub_c_lex_destroy'
cc: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

Stop.
bmake[4]: stopped in /usr/src/usr.sbin/unbound/daemon

Do I have to resort to using freebsd-update and to give up source updating from 9 to 10 :( ?

-- 
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto at keltia.net
In memoriam to Ondine, our 2nd child: http://ondine.keltia.net/