On Mon, Oct 05, 2026 at 03:14:17PM +0200, Morten Brørup wrote: > > If x86_64 is specified as target CPU instruction set (e.g. when > > cross-compiling *to* x86_64), the cpu_instruction_set may be set to > > x86_64, e.g. if it is derived from a Meson crossfile. However, while > > Meson uses "x86_64" as name for the x86_64 architecture, compiler > > options accept only "x86-64". > > > > Introduce a conditional for handling this special case by changing > > cpu_instruction_set to the march-compatible value. > > > > Signed-off-by: Adrian Schollmeyer <[email protected]> > > --- > > config/meson.build | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/config/meson.build b/config/meson.build > > index dcb84ebd13..238d6cae0c 100644 > > --- a/config/meson.build > > +++ b/config/meson.build > > @@ -177,6 +177,11 @@ if not is_ms_compiler > > machine_args += '-mtune=' + cpu_instruction_set > > compiler_arch_support = cc.has_argument('-mcpu=' + > > cpu_instruction_set) > > else > > + # Meson uses x86_64, but compilers expect x86-64. > > + # See https://mesonbuild.com/Reference-tables.html#cpu- > > families > > + if cpu_instruction_set == 'x86_64' > > + cpu_instruction_set = 'x86-64' > > Not sure, but maybe: 'x86-64-v2'? > > Ref: > https://www.phoronix.com/news/GCC-11-x86-64-Feature-Levels > Yes, probably best to use that. We require SSE4 as a minimum instruction set for DPDK build.
/Bruce
