problems with a C program on different machines, using different compilers

This is a discussion on problems with a C program on different machines, using different compilers within the C Programming forums, part of the General Programming Boards category; Hi I have Fedora Core 5 2.6.17-1.2174_FC5 with gcc version: gcc (GCC) 4.1.1 200 60525 (Red Hat 4.1.1-1) everything compiles ...

  1. #1
    Registered User
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    Oct 2006
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    problems with a C program on different machines, using different compilers

    Hi

    I have Fedora Core 5 2.6.17-1.2174_FC5 with gcc version: gcc (GCC) 4.1.1 200
    60525 (Red Hat 4.1.1-1)

    everything compiles well, and run smoothly on my machine. But the actual pro
    duction machine is Linux 2.4.20-46.9.legacysmp
    with gcc version gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)

    on the production machine, I get errors like:
    1) warning #266: function declared implicitly
    while ((read = getline (&line, &len, sfile)) != -1) {

    2) undefined reference to `sem_init'
    3) undefined reference to `sem_destroy'

    while I am using the correct headers:
    #define _GNU_SOURCE
    #include <stdio.h>

    for the getline

    and
    #include <semaphore.h>

    for the sem_init and sem_destroy

    I receive the same "warning #266: function declared implicitly" for my own d
    efined functions as well, while my header is included,

    any ideas where could be the problem,

    sorry for asking a question that might be basic, but it is my first time to
    move code between different machines in linux and compilers versions,

    I appreciate any help,

    thanks,

    Manal

  2. #2
    Reverse Engineer maxorator's Avatar
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    Can't you update your GCC in the production machine?
    "The Internet treats censorship as damage and routes around it." - John Gilmore

  3. #3
    Registered User
    Join Date
    Oct 2006
    Posts
    7
    Hi

    Thank you for your reply,

    I am trying to talk to the administrators to do this, but didn't get a reply yet, and I have deadlines to catch, and afraid they might say they can't because of other users might find it conflicting with their work,

    so, trying to plan for the worst actually, if there is any way I can fix my code to the older versions, I would like to learn it,

    thanks again,
    Manal

  4. #4
    ATH0 quzah's Avatar
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    "getline" appears to be something like fgets, from the arguments, and the way you're using it, so why don't you just use that?


    Quzah.
    Hope is the first step on the road to disappointment.

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