Problem with portupgrade of clamav-0.86

[Robert Fitzpatrick]

I just did a portupgrade of this port to 0.85 a little while back. Now 
when I try the portupgrade to 0.86, I get:

clamav-milter.o: In function `clamfi_gethostbyname':
clamav-milter.o(.text+0x58df): undefined reference to `gethostbyname_r'
*** Error code 1

Stop in /usr/ports/security/clamav/work/clamav-0.86/clamav-milter.
*** Error code 1

Stop in /usr/ports/security/clamav/work/clamav-0.86.
*** Error code 1

Stop in /usr/ports/security/clamav/work/clamav-0.86.
*** Error code 1

Stop in /usr/ports/security/clamav.
** Command failed [exit code 1]: /usr/bin/script -qa 
/tmp/portupgrade80106.0 make
** Fix the problem and try again.
** Listing the failed packages (*:skipped / !:failed)

Anyone know what can cause this problem, I have not been able to nail it 
down using the archives or net.

--
Robert