_Py_NO_SANITIZE_UNDEFINED is defined twice when compiling with recent GCC

[collinfunk]

Bug report

Bug description:

When compiling with a recent version of GCC and enabling undefined sanitizer, I see the following warning:

./Modules/faulthandler.c:49:11: warning: "_Py_NO_SANITIZE_UNDEFINED" redefined
   49 | #  define _Py_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize_undefined))
      |           ^~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/faulthandler.c:44:13: note: this is the location of the previous definition
   44 | #    define _Py_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize("undefined")))
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~

The conditions just need some updating to match recent GCC and Clang versions.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-129838: Don't redefine _Py_NO_SANITIZE_UNDEFINED #129839
• [3.12] gh-129838: Don't redefine _Py_NO_SANITIZE_UNDEFINED (GH-129839) #130365
• [3.13] gh-129838: Don't redefine _Py_NO_SANITIZE_UNDEFINED (GH-129839) #130366