🚀 go-pugleaf

    I have an application that has to use some of the functions of
re-entrant library (libc_r.a). But when I try to link this application
it would complain in the following way.

-------------------------------------------------------------------------------
cc -o timop_client timop_client.o timop_cstub.o timop_caux.o -L/opt/dcelocal/lib
 -ldce -lc_r -lc -lbsd 
-------------------------------------------------------------------------------
ld: multiple definitions of symbol `setpwfile'.  Files:
 /lib/libc.a(getpwent.o)
ld: multiple definitions of symbol `setpwent'.  Files:
 /lib/libc.a(getpwent.o)
ld: multiple definitions of symbol `endpwent'.  Files:
 /lib/libc.a(getpwent.o)
ld: multiple definitions of symbol `mktime'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `tzset'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `timezone'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `daylight'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `longjmp'.  Files:
 /lib/libc.a(setjmp.o)
ld: multiple definitions of symbol `ds_in_effect'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `tzname'.  Files:
 /lib/libc.a(ctime.o)
ld: multiple definitions of symbol `_pw_file'.  Files:
 /lib/libc.a(getpwent.o)
*** Exit 1


    When I switch the order of -lc_r and -lc, it would complain like
this.

-------------------------------------------------------------------------------
cc -o timop_client timop_client.o timop_cstub.o timop_caux.o -L/opt/dcelocal/lib
 -ldce -lc -lc_r -lbsd 
-------------------------------------------------------------------------------
ld: multiple definitions of symbol `mktime'.  Files:
 /lib/libc_r.a(ctime.o)
ld: multiple definitions of symbol `tzset'.  Files:
 /lib/libc_r.a(ctime.o)
ld: multiple definitions of symbol `timezone'.  Files:
 /lib/libc_r.a(ctime.o)
ld: multiple definitions of symbol `daylight'.  Files:
 /lib/libc_r.a(ctime.o)
ld: multiple definitions of symbol `ds_in_effect'.  Files:
 /lib/libc_r.a(ctime.o)
ld: multiple definitions of symbol `tzname'.  Files:
 /lib/libc_r.a(ctime.o)
*** Exit 1
Stop.


    Not specifying -lc at all would produce the same result as the first
case.

    Is this caused because,

1. I am trying to link in a wrong way, or
2. My libc.a or libc_r.a was built the wrong way, or
3. It's something to do with the gcc(and/or ld) itself, or
4. Something else.

    I quite don't understand why it says, "multiple definitions of ...",
because, I would assume that the linker fetches the first symbol it
finds in the command line and just ignores the ones with the same name
that come up later in its search.

    Any information will be greatly appreciated.

    I am using "gcc version 1.37.1 OSF 1.8.1.12 OSF/1 Dec Mips Oct 31
1990" on OSF/1 1.0

===============================================================================

          Gyota Yasoda [yasoda@hri.com]

     Horizon Research Institute, Massachusetts

===============================================================================