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, 1 insertions, 13 deletions

diff --git a/src/gnutls.c b/src/gnutls.c
index e3d84a0b61b..03f753fa8cc 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -359,12 +359,7 @@ emacs_gnutls_write (struct Lisp_Process *proc, const char *buf, ptrdiff_t nbyte)
 
   if (proc->gnutls_initstage != GNUTLS_STAGE_READY)
     {
-#ifdef EWOULDBLOCK
-      errno = EWOULDBLOCK;
-#endif
-#ifdef EAGAIN
       errno = EAGAIN;
-#endif
       return 0;
     }
 
@@ -384,14 +379,7 @@ emacs_gnutls_write (struct Lisp_Process *proc, const char *buf, ptrdiff_t nbyte)
                  appropriately so that send_process retries the
                  correct way instead of erroring out. */
               if (rtnval == GNUTLS_E_AGAIN)
-                {
-#ifdef EWOULDBLOCK
-                  errno = EWOULDBLOCK;
-#endif
-#ifdef EAGAIN
-                  errno = EAGAIN;
-#endif
-                }
+                errno = EAGAIN;
               break;
             }
         }