Re: [dpdk-dev] pktgen-2.9.13 not compiling with gcc 4.9 because of -Wdiscarded-qualifiers / 2.9.12 fine

["Wiles, Keith" <keith.wiles@intel.com>]

>Hi,
>
>pktgen-2.9.13 is not compiling with gcc 4.9, see below
>
>2.9.12 is compiling fine with gcc 4.9, so looks like new
>IPv6 code recently added is the culprit.
>
>I think -Wdiscarded-qualifiers is available only with gcc 5+ 
>https://gcc.gnu.org/gcc-5/changes.html

Thanks I have fixed the problem on Ubuntu 15.10 using gcc 4.9 and 5.x plus pushed a new version. Please give it a try.
>
>Sincerely,
>
>Laurent
>
>root@dpdk3:~/pktgen-2.9.13# make
>== lib
>== common
>  CC wr_copyright_info.o
>  CC wr_port_config.o
>  CC wr_core_info.o
>  CC wr_lscpu.o
>  CC wr_utils.o
>  CC wr_coremap.o
>  CC wr_pcap.o
>In file included from /root/pktgen-2.9.13/lib/common/wr_pcap.c:122:0:
>/root/pktgen-2.9.13/lib/common/wr_inet.h:755:9: error: unknown option
>after ‘#pragma GCC diagnostic’ kind [-Werror=pragmas]
> #pragma GCC diagnostic ignored "-Wdiscarded-qualifiers"
>         ^
>/root/pktgen-2.9.13/lib/common/wr_inet.h: In function ‘inet_ntop6’:
>/root/pktgen-2.9.13/lib/common/wr_inet.h:758:2: error: return discards
>‘const’ qualifier from pointer target type [-Werror]
>  return inet_ntop(AF_INET6, ip6, buff, len);
>  ^
>cc1: all warnings being treated as errors
>/root/dpdk-2.2.0/mk/internal/rte.compile-pre.mk:126: recipe for target
>'wr_pcap.o' failed
>make[3]: *** [wr_pcap.o] Error 1
>/root/dpdk-2.2.0/mk/rte.extlib.mk:44: recipe for target 'all' failed
>make[2]: *** [all] Error 2
>/root/dpdk-2.2.0/mk/rte.extsubdir.mk:46: recipe for target 'common'
>failed
>make[1]: *** [common] Error 2
>/root/dpdk-2.2.0/mk/rte.extsubdir.mk:46: recipe for target 'lib' failed
>make: *** [lib] Error 2
>
>
>


Regards,
Keith