Revert the poisoning for now

Author: encukou

Include/pyport.h

@@ -83,17 +83,6 @@
 // locking needed in for free-threaded interpreters builds.
 #    define Py_GIL_DISABLED
 #  endif
-#  if defined(_Py_IS_TESTCEXT)
-// When compiling for  abi3t, contents of Python.h should not depend
-// on Py_GIL_DISABLED.
-// We ask GCC to error if it sees the macro from this point on.
-// Since users are free to the macro, and there's no way to undo the poisoning
-// at the end of Python.h, we only do this in a test module.
-#    ifdef __GNUC__
-#      undef Py_GIL_DISABLED
-#      pragma GCC poison Py_GIL_DISABLED
-#    endif
-#  endif
 #endif
 
 

Lib/test/test_cext/setup.py

@@ -18,11 +18,6 @@
         # The purpose of test_cext extension is to check that building a C
         # extension using the Python C API does not emit C compiler warnings.
         '-Werror',
-        # Enable extra checks for header files, which:
-        #  - need to be enabled somewhere inside Python headers (rather than
-        #    before including Python.h)
-        #  - should not be checked for user code
-        '-D_Py_IS_TESTCEXT',
     ]
 
     # C compiler flags for GCC and clang