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Sun Forte 6.1 + groff problems

From: Werner LEMBERG
Subject: Sun Forte 6.1 + groff problems
Date: Fri, 08 Feb 2002 09:03:37 +0100 (CET)

> >> [...] Sun Forte 6.1 (fails)

There is the following code for groff's configure script to test
whether global destructors in C++ are called:

  extern "C" {
    void _exit(int);
  int i;
  struct A {
    char dummy;
    A() { i = 1; }
    ~A() { if (i == 1) _exit(0); }
  A a;
  int main() { return 1; }
  AC_MSG_RESULT(no);AC_MSG_ERROR([a working C++ compiler is required]),

This fails with Sun's Forte 6.1 compiler on that platform:

  uname -m = sun4u
  uname -r = 5.7
  uname -s = SunOS
  uname -v = Generic_106541-18

giving the following error message (from config.log):

  configure:1914: CC -o conftest -g   conftest.cc  >&5
  Undefined           first referenced
   symbol                 in file
  void __Crun::register_exit_code(void(*)()extern"C") conftest.o
  ld: fatal: Symbol referencing errors. No output written to conftest

Until now I never got a report like this, so I wonder whether this is
a real problem with groff's code or a problem with the 6.1 version of
this compiler.

Any clues?  I know that this is not directly related to autoconf, but
this is the group of experts which probably has most knowledge of
such issues.  Thanks in advance for any help.


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