undefined reference to ... errors with MinGW gcc compiler

[Yingfu Xie <Yingfu.Xie@sekon.slu.se>]

Hello, all,

I want to build a DLL to be called by .Call in S-plus using MinGW gcc
compiler. The 'makeseq' code in Programmer's Guide p682 is used as a test.
However, unexpected errors occurred. (The command line, error message and
the C code are attached below.) Does anyone have similar experience? 

In fact, I have succeeded building DLLs to be called by .C (thanks to Prof.
Ripley), i.e. C code without tricks such as s-object, S_EVALUATOR etc. But
now it doesn't work. Any helps are highly appreciated!
I am using gcc 3.2.3 (mingw special), S-plus6.2 and Windows 2000.

Regards,
Yingfu

The command line and error message:

D:\s-project\temp>  c:\MinGW\bin\gcc -shared -Wall -I"c:\program
files\insightful\splus62\include" -o S.dll -O2 test-call.c

C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x32):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x4c):test-call.c:
undefined reference to `_imp__coevec'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x7b):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x89):test-call.c:
undefined reference to `_imp__alcvec'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x93):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x9e):test-call.c:
undefined reference to `_imp__set_length2'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0xc6):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0xdb):test-call.c:
undefined reference to `_imp__S_newio_fprintf'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0xe0):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0xea):test-call.c:
undefined reference to `_imp__set_error_buf'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0xef):test-call.c:
undefined reference to `_imp__S_evaluator'
C:\DOCUME~1\yxiadmin\LOCALS~1\Temp/ccQ5aaaa.o(.text+0x106):test-call.c:
undefined reference to `_imp__Recover'

And the C code:

#include <S.h>

s_object *makeseq(s_object *sobjX)
{
  S_EVALUATOR
  long i,n,xmax,*seq,*x;
  s_object *sobjSeq;

  /*Convert the s_object into C type data*/
  sobjX= AS_INTEGER(sobjX);
  x= INTEGER_POINTER(sobjX);
  n=GET_LENGTH(sobjX);

  /*Compute max value*/
  xmax=x[0];
  if (n>1) {
     for (i=1;i<n;i++){
           if (xmax < x[i]) xmax =x[i];
                     }
           }
  if (xmax<0)
    PROBLEM "The maximum value (%ld) is negative.",xmax ERROR;

  /*Create a new s_object, set its length and get a
   C integer pointer to it */
  sobjSeq= NEW_INTEGER(0);
  SET_LENGTH(sobjSeq, xmax);
  seq=INTEGER_POINTER(sobjSeq);

  for (i=0;i<xmax; i++){
    seq[i]=i+1;
                       }
  return(sobjSeq);
}
###########################################

This message has been scanned by F-Secure 
Anti-Virus for Microsoft Exchange.

###########################################