Hi,
checking "man clock_gettime" I see: "Link with -lrt (only for glibc
versions before 2.17)."

RH 6.7 is at glibc 2.12, I haven't check the build, but you might easily
run the make with V=1 and see the call.
Check if it contains -lrt for the linking step.




Christian Ehrhardt
Software Engineer, Ubuntu Server
Canonical Ltd

On Tue, Jul 12, 2016 at 12:02 PM, Raslan Darawsheh <rasland at mellanox.com>
wrote:

> Hi,
>
> When trying to compile DPDK on Red Hat Enterprise Linux Server release 6.7
> (Santiago) it fails to compile.
>
> This is the compilation error that is being seen:
> LD test
> /download/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.a(eal_timer.o):
> In function `get_tsc_freq':
> eal_timer.c:(.text+0x152): undefined reference to `clock_gettime'
> eal_timer.c:(.text+0x190): undefined reference to `clock_gettime'
> /download/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.a(eal_alarm.o):
> In function `rte_eal_alarm_set':
> eal_alarm.c:(.text+0x382): undefined reference to `clock_gettime'
> /download/dpdk/x86_64-native-linuxapp-gcc/lib/librte_eal.a(eal_alarm.o):
> In function `eal_alarm_callback':
> eal_alarm.c:(.text+0x5e2): undefined reference to `clock_gettime'
> collect2: ld returned 1 exit status
> make[5]: *** [test] Error 1
> make[4]: *** [test] Error 2
> make[3]: *** [app] Error 2
> make[2]: *** [all] Error 2
> make[1]: *** [pre_install] Error 2
> make: *** [install] Error 2
>
> Kindest regards
> Raslan Darawsheh
>

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