Assume POSIX 1003.1-1988 or later for errno.h.

* lib-src/movemail.c (main): Assume EAGAIN and EBUSY.
* src/dired.c (directory_files_internal, file_name_completion):
Assume EAGAIN and EINTR are defined.
* src/fileio.c (Fcopy_file): Assume EISDIR is defined.
* src/gmalloc.c (ENOMEM, EINVAL): Assume they're defined.
* src/gnutls.c (emacs_gnutls_write): Assume EAGAIN is defined.
* src/lread.c (readbyte_from_file): Assume EINTR is defined.
* src/process.c (wait_reading_process_output, send_process) [subprocesses]:
Assume EIO and EAGAIN are defined.
* src/unexcoff.c (write_segment): Assume EFAULT is defined.

Fixes: debbugs:12968

1 files changed, 0 insertions, 2 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 442c66550d3..98b27035597 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1995,10 +1995,8 @@ on the system, we copy the SELinux context of FILE to NEWNAME.  */)
     {
       if (!(S_ISREG (st.st_mode)) && !(S_ISLNK (st.st_mode)))
         {
-#if defined (EISDIR)
           /* Get a better looking error message. */
           errno = EISDIR;
-#endif /* EISDIR */
           report_file_error ("Non-regular file", Fcons (file, Qnil));
         }
     }