linkage fails on freebsd <7

[M. Yu. Brazhnikov]

Hi,

The port I maintaint fails on link stage on freebsd 5.x and 6.x (you can find 
build log at miwi tinderbox 
http://head.miwibox.org/tb/index.php?action=describe_port&id=2417)
In short it complains on undefined function from libc. I've compared work dirs 
on 6.x and 7.x and found no essential difference. The only note -- if I pass 
LDFLAGS=-shared-libgcc to 'make' then the build goes fine.

Could someone more experienced clarify the situation?

Thanks,
Max