Compile problem

I'm running slackware 10 with an everything install. 
When i try to compile checkpassword i get this:

( cat warn-auto.sh; \
echo 'main="$1"; shift'; \
echo exec "`head -1 conf-ld`" \
'-o "$main" "$main".o ${1+"$@"}' \
) > load
chmod 755 load
sh find-systype.sh > systype
sh print-cc.sh > compile
chmod 755 compile
( ( ./compile tryspnam.c && ./load tryspnam )
>/dev/null \
2>&1 \
&& echo \#define HASGETSPNAM 1 || exit 0 ) >
hasspnam.h
rm -f tryspnam.o tryspnam
( ( ./compile tryslib.c && \
./load tryslib -ls ) >/dev/null 2>&1 \
&& echo -ls || exit 0 ) > s.lib
rm -f tryslib.o tryslib
( ( ./compile tryuserpw.c \
  && ./load tryuserpw `cat s.lib` ) >/dev/null 2>&1 \
&& echo \#define HASGETUSERPW 1 || exit 0 ) >
hasuserpw.h
rm -f tryuserpw.o tryuserpw
./compile checkpassword.c
cat warn-auto.sh choose.sh \
| sed s}HOME}"`head -1 conf-home`"}g \
> choose
chmod 755 choose
./compile chkshsgr.c
./load chkshsgr
./chkshsgr || ( cat warn-shsgr; exit 1 )
./choose clr tryshsgr hasshsgr.h1 hasshsgr.h2 >
hasshsgr.h
./compile prot.c
( cat warn-auto.sh; \
echo 'main="$1"; shift'; \
echo 'rm -f "$main"'; \
echo 'ar cr "$main" ${1+"$@"}'; \
case "`cat systype`" in \
sunos-5.*) ;; \
unix_sv*) ;; \
irix64-*) ;; \
irix-*) ;; \
dgux-*) ;; \
hp-ux-*) ;; \
sco*) ;; \
*) echo 'ranlib "$main"' ;; \
esac \
) > makelib
chmod 755 makelib
./compile alloc.c
./compile alloc_re.c
./compile buffer.c
./compile buffer_2.c
./compile buffer_copy.c
./compile buffer_get.c
./compile buffer_put.c
./compile env.c
./compile error.c
./compile error_str.c
./compile open_read.c
./compile open_trunc.c
./compile pathexec_env.c
./compile pathexec_run.c
./compile stralloc_cat.c
./compile stralloc_catb.c
./compile stralloc_cats.c
./compile stralloc_eady.c
./compile stralloc_opyb.c
./compile stralloc_opys.c
./compile stralloc_pend.c
./compile strerr_die.c
./compile strerr_sys.c
./makelib unix.a alloc.o alloc_re.o buffer.o
buffer_2.o \
buffer_copy.o buffer_get.o buffer_put.o env.o error.o
\
error_str.o open_read.o open_trunc.o pathexec_env.o \
pathexec_run.o prot.o stralloc_cat.o stralloc_catb.o \
stralloc_cats.o stralloc_eady.o stralloc_opyb.o \
stralloc_opys.o stralloc_pend.o strerr_die.o
strerr_sys.o
./compile byte_copy.c
./compile byte_cr.c
./compile byte_diff.c
./compile str_chr.c
./compile str_len.c
./compile str_start.c
./makelib byte.a byte_copy.o byte_cr.o byte_diff.o \
str_chr.o str_len.o str_start.o
( ( ./compile tryshadow.c && \
./load tryshadow -lshadow ) >/dev/null 2>&1 \
&& echo -lshadow || exit 0 ) > shadow.lib
rm -f tryshadow.o tryshadow
( ( ./compile trycrypt.c && \
./load trycrypt -lcrypt ) >/dev/null 2>&1 \
&& echo -lcrypt || exit 0 ) > crypt.lib
rm -f trycrypt.o trycrypt
./load checkpassword prot.o unix.a byte.a  `cat \
shadow.lib` `cat crypt.lib` `cat s.lib`
checkpassword.o(.text+0x102): In function `main':
: undefined reference to `errno'
checkpassword.o(.text+0x257): In function `main':
: undefined reference to `errno'
checkpassword.o(.text+0x287): In function `main':
: undefined reference to `errno'
unix.a(pathexec_run.o)(.text+0x119): In function
`pathexec_run':
: undefined reference to `errno'
unix.a(pathexec_run.o)(.text+0x15d): In function
`pathexec_run':
: undefined reference to `errno'
unix.a(alloc.o)(.text+0x4c): more undefined references
to `errno' follow
collect2: ld returned 1 exit status
make: *** [checkpassword] Error 1



		
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