.. title: Fix for "undefined reference to clock_gettime"
.. slug: fix-for-undefined-reference-to-clock_gettime
.. date: 2014-08-06 23:10:51
.. tags: linux
.. category:
.. link:
.. description:
.. type: text

While running the build.sh script for SIPp I ran into this error:

::

    src/sipp-time.o: In function getmicroseconds()': /chroot/root/sipp/src/time.cpp:57: undefined reference to clock_gettime'

.. TEASER_END: Read more

The fix is to add LDFLAGS="-ltr" like so:

::

    LDFLAGS=" -lrt " ./configure --with-openssl --with-pcap --with-sctp --with-rtpstream
    LDFLAGS=" -lrt " make

More information about this error: `Ubuntu
Linux C++ error: undefined reference to 'clock_gettime' and
'clock_settime' <http://stackoverflow.com/questions/2418157/ubuntu-linux-c-error-undefined-reference-to-clock-gettime-and-clock-settim>`_; `Untitled pastebin <http://pastebin.com/R98reyLS>`_; `[xymon] Can not compile 4.2.3 on
CentOS 5.2 <http://lists.xymon.com/archive/2010-December/030103.html>`_

Note: I published this post originally at `Fix for "undefined reference to clock_gettime" <https://codeghar.wordpress.com/2014/08/06/fix-for-undefined-reference-to-clock_gettime/>`_. Migrated to Nikola in February 2015.