mydns fails to build

[Yury Michurin]

Hello,
I were trying to build /usr/ports/dns/mydns , the build failed with:

---snip---
/bin/sh ../../libtool --mode=link cc  -O2 -fno-strict-aliasing -pipe
-fomit-frame-pointer -finline-functions -ffast-math -funsigned-char
-rpath=/usr/lib:/usr/local/lib -static -o mydns  alias.o axfr.o cache.o
conf.o data.o db.o encode.o  error.o listen.o main.o  queue.o recursive.o
reply.o  resolve.o rr.o sort.o status.o  task.o tcp.o udp.o update.o
../../src/lib/libmydns.a ../../lib/libmydnsutil.a /usr/local/lib/libintl.so
-L/usr/local/lib /usr/local/lib/libiconv.so -Wl,-rpath -Wl,/usr/local/lib
-L/usr/local/lib/mysql -lmysqlclient -L/usr/lib -lz -L/usr/lib -lssl
-lcrypto   -lm
mkdir .libs
libtool: link: cannot find the library `'
*** Error code 1

Stop in /usr/ports/dns/mydns/work/mydns-1.1.0/src/mydns.
*** Error code 1

Stop in /usr/ports/dns/mydns/work/mydns-1.1.0/src.
*** Error code 1

Stop in /usr/ports/dns/mydns/work/mydns-1.1.0.
*** Error code 1

Stop in /usr/ports/dns/mydns/work/mydns-1.1.0.
*** Error code 1

Stop in /usr/ports/dns/mydns.
---snip---

After that happened, if i perform:
cd work/mydns-1.1.0/
rm libtool
ln -s /usr/local/bin/libtool libtool

and return to the build it completes succefully.
Is anyone encountered such behavior or it's just my bad luck?

system is: FreeBSD delta.somedomain 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE
#1: Thu Nov 27 21:54:38 IST 2008
yury at delta.somedomain:/usr/obj/usr/src/sys/delta
amd64
phenom 9650 if it's matter.


Best regards,
Yury.

config.log attached.
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