> Hi,
> Can anybody have any idea how to fix the following error message out of
> executing the configure script of OVS.
> 
> root at sdnhubvm:/home/rct/sdnexp# ../sdn/ovs/configure --enable-Werror CC=gcc
> CFLAGS="-g -O2 -march=native" > output
> {standard input}: Assembler messages:
> {standard input}:1: Error: operand type mismatch for `vpgatherqq'
> rm: cannot remove 'build-aux/binutils_avx512_check.o': No such file or
> directory

Hi.  Does it cause the configure script to fail or is it just annoying
that it is printed while everything else is working fine?

In general, there seems to be an issue with your compiler, i.e. it
may be too old to correctly understand AVX512 instructions.  But that
should not cause configuration to fail.  You should still be able to
build OVS just fine, but support for AVX512 optimizations will be
disabled in the build.  So, if ./configure doesn't fail, you may just
ignore this error.   Or try upgrading your compiler.  You seem to use
some very old system.

Best regards, Ilya Maximets.
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