[ clisp-Bugs-1666851 ] [AIX 5.3] Problem finding connect and libsigsegv

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Bugs item #1666851, was opened at 2007-02-23 03:30
Message generated for change (Comment added) made by sds
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Category: clisp
Group: build problems
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Laurent Vaucher (laurentvaucher)
Assigned to: Bruno Haible (haible)
Summary: [AIX 5.3] Problem finding connect and libsigsegv

Initial Comment:
When building clisp on AIX 5.3, ./configure reports that it can't find connect() on the system.

The function is defined in /usr/include/sys/socket.h.
The complete prototype is:
int     connect(int, const struct sockaddr *, socklen_t);

As Sam asked by e-mail, the definition of socklen_t also lies in the same file:
/usr/include/sys/socket.h:typedef __ulong32_t socklen_t;


---
Another problem encountered by the configure script, is that it could not find libsigsegv. At least, that's what it tells me at the end (see below). I have just  successfully installed libsigsegv-2.4 in /usr/local. The config.log is attached (zipped because it was > 250k).


Configure findings:
  FFI:        yes (user requested: default)
  readline:    (user requested: )
  libsigsegv:
./configure: libsigsegv was not detected, thus some features, such as
  generational garbage collection and
  stack overflow detection in interpreted Lisp code
cannot be provided.
Please do this:
  mkdir tools; cd tools; prefix=`pwd`/powerpc-ibm-aix5.3.0.0
  wget http://ftp.gnu.org/pub/gnu/libsigsegv/libsigsegv-2.4.tar.gz
  tar xfz libsigsegv-2.4.tar.gz
  cd libsigsegv-2.4
  ./configure --prefix=${prefix} && make && make check && make install
  cd ../..
  ./configure --with-libsigsegv-prefix=${prefix}
If you insist on building without libsigsegv, please pass
  --ignore-absence-of-libsigsegv
to this script:
  ./configure --ignore-absence-of-libsigsegv

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>Comment By: Sam Steingold (sds)
Date: 2007-02-25 16:20

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try this:
$ /bin/sh
$ . config.cache
this should generate some errors.

all configure scripts must use the same shell flavor.
look at config.status rerun line to see which shell is being used there.
check your $CONFIG_SHELL

may be the easiest way out is
CONFIG_SHELL=/bin/bash; export CONFIG_SHELL
SHELL=/bin/bash; export SHELL
${SHELL} ./configure --build build-dir


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Comment By: Laurent Vaucher (laurentvaucher)
Date: 2007-02-25 15:21

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Regarding DOS EOL in the file, I guess it's only the ftp transfer between
AIX and my Windows PC that must have chosen ASCII-mode.

Bash is definitely installed on the system. I use it as my main shell. But
it is not installed as /bin/sh. Is there a way I can cell whether configure
uses it?

(Rest of answers tomorrow, when I'm back at work with an AIX machine
available).

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Comment By: Sam Steingold (sds)
Date: 2007-02-23 13:55

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why does you config.log have DOS line endings?

note that it says "cl_cv_lib_sigsegv=yes", so sigsegv is successfully
detected.
apparently config.cache cannot be sourced in the top-level configure 
(I think there was an error right before the "Configure findings:"
message).
this may be caused by different shell flavors.
do you have bash installed?
is it used by configure?

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Comment By: Sam Steingold (sds)
Date: 2007-02-23 11:35

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the connect problems:

/usr/include/sys/socket.h:374: error: syntax error before 'socklen_t'
/usr/include/sys/socket.h:378: error: syntax error before
'msg_controllen'
/usr/include/sys/socket.h:380: error: syntax error before '}' token
/usr/include/sys/socket.h:404: error: syntax error before 'socklen_t'
/usr/include/sys/socket.h:408: error: syntax error before '}' token
...

this means that before including sys/socket.h, something else must be
included.
we do this:

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>

how does your system documentation prescribe including of <sys/socket.h>?

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Comment By: Sam Steingold (sds)
Date: 2007-02-23 11:26

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could you please also attach config.cache?
thanks.

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