Hi Jim, On 2020-05-14 21:09, Jim Wilson wrote:
On Thu, May 14, 2020 at 5:26 AM <i.nixman@xxxxxxxxxxxxx> wrote:if (ecx & bit_AVX512VNNI) ^~~~~~~~~~~~~~ bit_AVX512VBMIThese bit_* macros are in cpuid.h. Maybe you have more than one copy of this file, and are accidentally using an older version than the one in the gcc source tree?
even if this is the case, I have not copied any files to the gcc source tree.
I see that you have lots of -I and -isystem options which normally should not be needed.
but as you can see I did not specify -I and -isystem arguments in the gcc/configure options.
In general, you can find some useful info about cross building toolchains in the crosstool-ng project. https://crosstool-ng.github.io/
thank you! will read.
Note that gmp, mpfr, mpc, and isil can just be dropped into the gcc source tree, alongside the other libraries like libgcc and libstdc++, and the gcc Makefile will build them for you as part of the gcc build. That should also work for zlib but I haven't tried that in a while. For libiconv, it is simpler to just use --disable-nls, but it looks like the toplevel makefile has support for that too, so adding that into the gcc source tree looks like it would work too.
ok, I will check this case! thank you!
