error updating Postfix

[Per olof Ljungmark]

cc -DDEF_CONFIG_DIR=\"/usr/local/etc/postfix\" 
-DDEF_DAEMON_DIR=\"/usr/local/libexec/postfix\" 
-DDEF_COMMAND_DIR=\"/usr/local/sbin\" 
-DDEF_SENDMAIL_PATH=\"/usr/local/sbin/sendmail\" 
-DDEF_NEWALIAS_PATH=\"/usr/local/bin/newaliases\" 
-DDEF_MAILQ_PATH=\"/usr/local/bin/mailq\" 
-DDEF_MANPAGE_DIR=\"/usr/local/man\" 
-DDEF_README_DIR=\"/usr/local/share/doc/postfix\" 
-DDEF_HTML_DIR=\"/usr/local/share/doc/postfix\" 
-DDEF_QUEUE_DIR=\"/var/spool/postfix\" 
-DDEF_DATA_DIR=\"/var/db/postfix\" -DDEF_MAIL_OWNER=\"postfix\" 
-DDEF_SGID_GROUP=\"maildrop\" -DHAS_PCRE -I/usr/local/include 
-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/include 
-I/usr/local/include/sasl -DUSE_TLS -I/usr/include  -O2 
-fno-strict-aliasing -pipe -I. -DFREEBSD7 -c attr_clnt.c
In file included from attr_clnt.c:77:
/usr/include/unistd.h:329: error: conflicting types for 'closefrom'
./sys_defs.h:1404: error: previous declaration of 'closefrom' was here
*** Error code 1

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