Clean out some IRIX cruft

* etc/MACHINES: Remove obsolete discussion of IRIX.
* src/process.c (allocate_pty) [__sgi]: Remove SGI-specific code.
(create_process) [HAVE_PTYS]: Don't worry about IRIX.
* src/syntax.c (scan_sexps_forward): Remove obsolete comment.
* src/unexelf.c [__sgi]: Don't include <syms.h>.
(unexec) [__sgi]: Remove SGI-specific code.

1 files changed, 0 insertions, 9 deletions

diff --git a/etc/MACHINES b/etc/MACHINES
index 15ac91772e0..7f3c979c3f6 100644
--- a/etc/MACHINES
+++ b/etc/MACHINES
@@ -101,15 +101,6 @@ the list at the end of this file.
     ./configure CC='/usr/sfw/bin/gcc -m64'  # GCC
     ./configure CC='cc -m64'                # Solaris Studio
 
-** Irix 6.5
-
-  Emacs versions later than 24.4 will not compile on Irix by default.
-  (Note that SGI stopped supporting Irix in December 2013.)
-  Older versions of Emacs 24 (and 23?) also had problems on Irix.
-  It *may* be possible to build Emacs <= 24.4 on Irix 6.5 with an old
-  version (3.1) of gcc.  Newer versions of gcc may not work.
-  See <http://bugs.gnu.org/9684>.
-
 
 * Obsolete platforms