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Groups > comp.lang.forth > #59824

Re: illustration of syscalls fork and mmap

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: illustration of syscalls fork and mmap
Date 2017-05-25 11:27 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2017May25.132726@mips.complang.tuwien.ac.at> (permalink)
References (3 earlier) <d7db8fbc-10f2-4e2a-a546-58af93e9fa1a@googlegroups.com> <2017May24.121336@mips.complang.tuwien.ac.at> <518d792d-3b3f-4088-9609-f83332ba97fd@googlegroups.com> <2017May25.104725@mips.complang.tuwien.ac.at> <9a3e5f9a-b134-44cf-812a-0f214b3ff9d4@googlegroups.com>

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krishna.myneni@ccreweb.org writes:
>On Thursday, May 25, 2017 at 4:32:04 AM UTC-5, Anton Ertl wrote:
>...
>> That you get the exception indicates a Gforth bug in a code path that
>> I don't exercise (this works for me).  We will look into the bug, but
>> you have some other problem as well, or you would not be exercising
>> this code path.  My guess is that you don't have libltdl installed.
>> Gforth's build works around missing features, but that means that the
>> features are then missing in the resulting Gforth system.
>> 
>
>I checked and found libltdl to be installed on my CentOS 7 system:
>
>$ ls libltdl*
>libltdl.so.7  libltdl.so.7.3.0
>
>I checked the messages from ./configure and the following seem to indicate the problem: some necessary package(s) to support the C library interface appear to be missing.
...
>checking for ltdl.h... no
...
>checking for lt_dlinit in -lltdl... no

libltdl is apparently not there in a way that is found by Gforth's build.

>./configure: line 16026: test: too many arguments
>configure: WARNING: No LIBTOOL found, skip pre-building libcc-based libraries
>configure: WARNING: No LIBTOOL found, skip building library

That also indicates a problem.  Debian-based distros don't install the
real libtool with the libtool-package; you have to install
libtool-bin.  Maybe Red Hat based distros have a similar problem.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2017: http://www.euroforth.org/ef17/

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illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-13 12:25 -0700
  Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-22 16:00 -0700
    Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-23 12:01 +0000
      Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-23 16:30 -0700
        Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-24 10:13 +0000
          Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-24 13:59 -0700
            Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-25 08:47 +0000
              Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 04:04 -0700
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 04:29 -0700
                Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-25 11:27 +0000
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 05:23 -0700
    Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 16:54 -0700
      Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 19:19 -0700
        Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-25 19:34 -0700
          Re: illustration of syscalls fork and mmap Roelf Toxopeus <rt4all@nothishetnet.nl> - 2017-05-26 11:03 +0200
            Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-26 05:15 -0700
              Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-26 15:22 +0000
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-26 17:13 -0700
                Re: illustration of syscalls fork and mmap josv@planet.nl - 2017-05-26 23:26 -0700
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-27 06:20 -0700
                Re: illustration of syscalls fork and mmap josv@planet.nl - 2017-05-27 07:41 -0700
                Re: illustration of syscalls fork and mmap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-27 06:21 +0000
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-27 06:32 -0700
                Re: illustration of syscalls fork and mmap Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-27 01:17 -0500
                Re: illustration of syscalls fork and mmap josv@planet.nl - 2017-05-26 23:43 -0700
                Re: illustration of syscalls fork and mmap Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-27 01:49 -0500
                Re: illustration of syscalls fork and mmap mhx@iae.nl - 2017-05-28 03:25 -0700
                Re: illustration of syscalls fork and mmap josv@planet.nl - 2017-05-28 04:56 -0700
                Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-27 06:53 -0700
                Re: illustration of syscalls fork and mmap Roelf Toxopeus <rt4all@nothishetnet.nl> - 2017-05-27 10:23 +0200
          Re: illustration of syscalls fork and mmap krishna.myneni@ccreweb.org - 2017-05-27 12:07 -0700

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