From: Kendrew LAU <kendrew AT mtk DOT com DOT hk>
Newsgroups: comp.os.msdos.djgpp
Subject: RSXDJNT 131: ld.exe bug?
Date: Wed, 18 Jun 1997 13:40:09 +0900
Organization: Engineering Faculty CUHK
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The ld.exe program in RSXNTDJ 131 does not print a warning
when linking a program with undefined reference.  A simple
example is:

  /* This is file a.c */
  extern void f();

  int main()
  {
      f();
      return 0;
  }
  /* End of file a.c */

And compile it as:
  gcc a.c

The compilation and linking go silently and produce the a.exe,
which gets killed upon execution:
  Exiting due to signal SIGILL
  Invalid Opcode at eip=00000000
  ...

I try it with the old ld.exe and it gives warning of
  a.o(.text+0x9):a.c: undefined reference to `f'

So, do I do anything wrong, or is it a bug in this ld.exe