Porting - link error

["Campbell Fethers" <cf at cannex dot com dot au>]

Trying to port heyu2. (Command line interface for x10 home automation. See
http://heyu.tanj.com/heyu2/. Basically, it just sends commands to a serial
port, and spawns a daemon to listen for responses.)

Achieved clean compile after adding a few #include<>'s and changing timezone
to _timezone.

When attempting to link:

gcc  -o heyu2 date.o erase.o info.o message.o relay.o monitor.o reset.o
setclock.o stop.o tty.o turn.o x10.o xread.o xwrite.o status.o cm11a.o
eeprom.o preset.o process.o sun.o -lm -lc
fu000001.o(.idata$3+0xc): undefined reference to
`__cygnus_netrel_build_cygwin_1_3_22_1_i686_pc_cygwin_winsup_cygwin_libc_a_i
name'
fu000002.o(.idata$3+0xc): undefined reference to
`__cygnus_netrel_build_cygwin_1_3_22_1_i686_pc_cygwin_winsup_cygwin_libc_a_i
name'
fu000005.o(.idata$3+0xc): undefined reference to
`__cygnus_netrel_build_cygwin_1_3_22_1_i686_pc_cygwin_winsup_cygwin_libc_a_i
name'
fu000006.o(.idata$3+0xc): undefined reference to
`__cygnus_netrel_build_cygwin_1_3_22_1_i686_pc_cygwin_winsup_cygwin_libc_a_i
name'
nmth000000.o(.idata$4+0x0): undefined reference to `__nm___tzname'
Info: resolving __tzname by linking to __imp___tzname (auto-import)
collect2: ld returned 1 exit status
make: *** [heyu2] Error 1

nm lists a symbol
___cygnus_netrel_build_cygwin_1_3_22_1_i686_pc_cygwin_winsup_cygwin_libc_a_i
name in /lib/libc.a with three leading underscores.

I looked in man ld, but couldn't find anything to help.

Any suggestions would be appreciated

Thank you.



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