Any >undefined reference to 'crypt'< solution?

[IronHand <ironhand@go2.pl>]

Hello!

Could anybody posibly tell me why some source codes using crypt() with
shadowed passwords crush linker?
I get an error:
--------------------------------------------------
xxx.o: In function 'yyy'
ccc.o(.text+0xMMM): undefined reference to 'crypt'
.
.
.
--------------------------------------------------
compiling Pine or Popa3d. Is there any solution?

Best regards
IronHand
-- 
nIck: IronHand of CruX     /GCS d-(++) s:- a18 C++ UL++++ P+++ L++@ E\
maIl: ironhand@go2.pl     { W+++ N+ o? K? w+++ !O M V? PS+ PE- Y PGP- }
                           \t+ 5+ X- R++ tv b+ DI? D+ G++ e- h! r% y-/