Re: librte_meter compilation fails on IBM Power8

["Chao Zhu" <chaozhu@linux.vnet.ibm.com>]

I can repeat this problem by "export EXTRA_CFLAGS="-O0 -g"" on Power8. But
I'm not sure why this happens. The "-O3 -g" option works properly. I'll
investigate more.

-----Original Message-----
From: Dumitrescu, Cristian [mailto:cristian.dumitrescu@intel.com] 
Sent: 2016年6月24日 1:26
To: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>; Chao Zhu <chaozhu@linux.
vnet.ibm.com>
Cc: dev@dpdk.org
Subject: RE: librte_meter compilation fails on IBM Power8



> -----Original Message-----
> From: Nélio Laranjeiro [mailto:nelio.laranjeiro@6wind.com]
> Sent: Wednesday, June 22, 2016 1:31 PM
> To: Dumitrescu, Cristian <cristian.dumitrescu@intel.com>; Chao Zhu 
> <chaozhu@linux.vnet.ibm.com>
> Cc: dev@dpdk.org
> Subject: librte_meter compilation fails on IBM Power8
> 
> Hi Cristian, Chao,
> 
> I have encountered a compilation failure on IBM Power8 when compiling 
> master branch with EXTRA_CFLAGS='-O0 -g':
> 
>   /root/nl/dpdk.org/build/lib/librte_meter.a(rte_meter.o): In function
> `rte_meter_get_tb_params':
>   /root/nl/dpdk.org/lib/librte_meter/rte_meter.c:57: undefined 
> reference to `ceil'
> 
> Seems related to commit 43f4364d.
> 
> I don't have the time to search more deeply, I hope it can help.
> 
> Regards,
> 
> --
> Nélio Laranjeiro
> 6WIND

I am not sure what the problem might be for IBM Power8.

ceil() is a function defined in math library, we include math.h header file
in rte_meter.c and we also link the library properly in the Makefile by
using LDLIBS += -lm, therefore I do not see any issue in the library code.

Thanks,
Cristian