openssh unix dev - Jan 2002 - [Bug 75] Error compiling in ssh-agent.c

http://bugzilla.mindrot.org/show_bug.cgi?id=75





------- Additional Comments From djm at mindrot.org  2002-01-23 17:16 -------
AFAIK atexit() should only take one arg. It looks like configure might not be
finding your libc atexit() and is using the compat macro in defines.h. What does
configure report when it looks for atexit()?

Ben, the compat macro looks wrong too. It is currently defined as:

# define atexit(a, NULL) on_exit(a, NULL)

shouldn't it be:

# define atexit(a) on_exit(a, NULL)

??






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------- Additional Comments From adrian at afsthumper.com  2002-01-24 15:21
-------
The configure report has both HAVE_XATEXIT and HAVE_ATEXIT commented out. It
looks like 
so:

/* If you have no atexit() but xatexit(), and want to use xatexit() */
/* #undef 
HAVE_XATEXIT */

and also

/* Define if you have the 'atexit' function. */
/* #undef 
HAVE_ATEXIT */

Is there a library I'm missing? I'm not familiar with the atexit 
function
and I'm not sure what I need to install to satisfy it.



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------- Additional Comments From djm at mindrot.org  2002-01-24 15:39 -------
What linux distribution are you using? What version of libc? Can you grep
through /usr/include/stdlib.h for an atexit() definition?




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------- Additional Comments From adrian at afsthumper.com  2002-01-24 23:18
-------
I am using Peanut Linux 8.4 (http://www.peanutlinux.org), which is just a
stripped down version
of linux that uses BSD-style init scripts. I am running kernel 2.2.19 with
pretty standard
features, nothing strange or experimental compiled in.

I am using GLibc 2.2.4, libc6 
ELF.

The atexit definition(s) I have in stdlib.h are as follows:
(I wasn't sure which one 
was more pertinent)

/* Register a function to be called when 'exit' is called. */
extern int 
atexit __P ((void (*__func) (void)));

/* Call all functions registered with 'atexit' and 
'on_exit',
   in the reverse of the order in which they were registered
   perform stdio cleanup, 
and terminate program execution with STATUS. */
extern void exit __P ((int __status)) 
__attribute__ ((__noreturn__));



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------- Additional Comments From adrian at afsthumper.com  2002-01-27 00:59
-------
After doing some research, and noticing that I get similar errors when compiling
other software
(like the GMP library), it looks like my problem may be GLibc and/or GCC
related. When I try to
compile GMP, I get undefined reference to 'atexit()'. It looks like a
patch for this issue for GCC-
2.95.3 is available. Here are the links I used to come to this 
conclusion

http://www.winehq.com/hypermail/wine-
users/2001/06/0049.html
http://sources.redhat.com/ml/libc-alpha/2001-
03/msg00048.html
http://gcc.gnu.org/ml/gcc-patches/2001-03/msg01187.html

So, in 
short, it looks like the bug may not be with the SSH source, but with the tools
I'm using. I will let
you know if patching GCC resolves this problem so we can get this bug closed
out.



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