[issue31760] Re-definition of _POSIX_C_SOURCE with Fedora 26.

Martin Panter added the comment: Looks the same as Issue 31374 -- nosy: +martin.panter resolution: -> duplicate stage: -> resolved status: open -> closed superseder: -> expat: warning: "_POSIX_C_SOURCE" redefined ___ Python tracker

[issue31760] Re-definition of _POSIX_C_SOURCE with Fedora 26.

New submission from Stéphane Wirtel : Hi all, Is it problematic ? if it is not the case, we can close it. In file included from /home/stephane/src/github.com/python/cpython/Modules/expat/expat_config.h:8:0, from /home/stephane/src/github.com/python/cpython/Modules/expat/xmlt