On 2020-03-20 11:12 p.m., Simon Marchi via lttng-dev wrote:
> So since distutils really wants to compile the Python native modules using all the same
> flags as the Python interpreter was built with, I presume that they really assume that
> you'll be using the exact same toolchain to build your module as was used to build the
> interpreter.  Maybe we could just not pass CC/CFLAGS when building the Python module,
> so it will simply be built with the same compiler/linker as Python was built with, and
> we'll avoid all these problems...

If we want to go this route, here's a patch that implements it.

  https://review.lttng.org/c/babeltrace/+/3257

This makes it so we don't override the compiler or flags (other than necessary includes
flags) when building the native module.  So when configuring with CC=clang, the Python
native module gets built with the Python distribution's default compiler, with just the
flags it wants.

Could you check if that works with CC=icc as well?

Simon