[Bug c/108978] New: Add __builtin_FILE_NAME() which behaves like the __FILE_NAME__ macro

[i at maskray dot me via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108978

            Bug ID: 108978
           Summary: Add __builtin_FILE_NAME() which behaves like the
                    __FILE_NAME__ macro
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: i at maskray dot me
  Target Milestone: ---

PR c/42579 added __FILE_NAME__. On the Clang side someone is proposing
__builtin_FILE_NAME (https://reviews.llvm.org/D144878) a la __builtin_FILE .