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Thread: "error: 'clock_gettime' was not declared in this scope" and "error: 'CLOCK_MONOTONIC"

  1. #1
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    Default "error: 'clock_gettime' was not declared in this scope" and "error: 'CLOCK_MONOTONIC"

    Usung qt 4.8.1 unde windows. compiling "pure" c++ code i get the following errors:

    Qt Code:
    1. trigwiz.h:149: error: 'CLOCK_MONOTONIC' was not declared in this scope
    2. trigwiz.h:149: error: 'clock_gettime' was not declared in this scope
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    I know clock_gettime is in rt library and so i modified the .pro file as following:

    Qt Code:
    1. TEMPLATE = app
    2. CONFIG += console
    3. CONFIG -= qt
    4.  
    5. SOURCES += main.cpp \
    6. trigwiz.cpp
    7.  
    8. HEADERS += \
    9. trigwiz.h
    10.  
    11. LIBS += -lpthread -lrt
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    unfortunately it was unsuccessfull...

  2. #2
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    Default Re: "error: 'clock_gettime' was not declared in this scope" and "error: 'CLOCK_MONOTO

    you have a compiler error. so address the c++ compiler error. This has nothing to do with Qt.

    http://linux.die.net/man/3/clock_gettime
    If you have a problem, CUT and PASTE your code. Do not retype or simplify it. Give a COMPLETE and COMPILABLE example of your problem. Otherwise we are all guessing the problem from a fabrication where relevant details are often missing.

  3. #3
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    Default Re: "error: 'clock_gettime' was not declared in this scope" and "error: 'CLOCK_MONOTO

    It has to do with the windows qt environment and the way it spread the file in the filesystem....
    How can I check wether the lib is correctly reachable (presence/lib path) by the linker?
    Moreover the time.h include should contain the CLOCK_MONOTONIC define. Where can I find it ?


    Quote Originally Posted by amleto View Post
    you have a compiler error. so address the c++ compiler error. This has nothing to do with Qt.

    http://linux.die.net/man/3/clock_gettime

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    Default Re: "error: 'clock_gettime' was not declared in this scope" and "error: 'CLOCK_MONOTO

    Quote Originally Posted by brunialti View Post
    It has to do with the windows qt environment and the way it spread the file in the filesystem....
    Qt environment doesn't spread any files anywhere.

    How can I check wether the lib is correctly reachable (presence/lib path) by the linker?
    You can compile a program that uses it. If it fails, then it is not reachable.

    Moreover the time.h include should contain the CLOCK_MONOTONIC define. Where can I find it ?
    time.h? Probably in the place where you had put it. I don't see what Qt has to do with it. You're not even using Qt anywhere:
    qmake Code:
    1. CONFIG -= qt
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