Error

Hi all

Well hope you all can help me.
I have just installed qmail and I am trying to get pop3 to work. Now I did
download checkpassword program
But when I try to install it I get this error. Please could somewone help
me.

I am running Redhat 9


[[email protected]]# make
./load checkpassword prot.o unix.a byte.a  `cat \
shadow.lib` `cat crypt.lib` `cat s.lib`
checkpassword.o(.text+0xfa): In function `main':
: undefined reference to `errno'
checkpassword.o(.text+0x243): In function `main':
: undefined reference to `errno'
checkpassword.o(.text+0x265): In function `main':
: undefined reference to `errno'
unix.a(pathexec_run.o)(.text+0xf6): In function `pathexec_run':
: undefined reference to `errno'
unix.a(pathexec_run.o)(.text+0x13a): In function `pathexec_run':
: undefined reference to `errno'
unix.a(alloc.o)(.text+0x48): more undefined references to `errno' follow
collect2: ld returned 1 exit status
make: *** [checkpassword] Error 1

Eugene