Oh, yes, "configure" checks for compiler warning support, so if you change the compiler it is necessary to re-run configure.
On Tue, Jun 04, 2019 at 07:38:52AM +0000, Yanqin Wei (Arm Technology China) wrote: > Hi Ben, > > After reconfigure the compiler: CC=gcc , this issue is solved. I tried to > reproduce it and found reproducing condition is to switch default gcc version > after running configure script. > 1. default gcc is gcc-8, running the configure script. > 2. change the default gcc to gcc-6 > 3. building <--- compiling error > > 4. specific C compiler by configure script: compiler CC=gcc <-- building > success > 5. change default gcc to gcc-8 and running the configure script > 6 change default gcc to gcc-6 & building <-- compiling error > > In the config.log after step 3, the detected gcc version is 8.2, so it choose > some unsupported compiler option for gcc-6. > configure:4038: checking for C compiler version > configure:4047: gcc --version >&5 > gcc (GCC) 8.2.0 > Copyright (C) 2018 Free Software Foundation, Inc. > > So I think it should not be a bug. It is a configure issue. Thanks for your > support. > > Best Regards, > Wei Yanqin > > -----Original Message----- > From: Ben Pfaff <b...@ovn.org> > Sent: Tuesday, June 4, 2019 7:11 AM > To: Yanqin Wei (Arm Technology China) <yanqin....@arm.com> > Cc: ovs-discuss@openvswitch.org; d...@openvswitch.org > Subject: Re: [ovs-dev] OVS compiling issue(gcc version 6.5.0 ) > > On Mon, Jun 03, 2019 at 11:18:23AM +0000, Yanqin Wei (Arm Technology China) > wrote: > > I am trying to compile OVS(master branch) via gcc 6.5.0, but there is gcc > > option error. > > gcc: error: unrecognized command line option '-Wmultistatement-macros'; did > > you mean '-Wunused-macros'? > > What's in config.log? > > IMPORTANT NOTICE: The contents of this email and any attachments are > confidential and may also be privileged. If you are not the intended > recipient, please notify the sender immediately and do not disclose the > contents to any other person, use it for any purpose, or store or copy the > information in any medium. Thank you. _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
