Document problems with DEC C 5.9.x on Digital Unix 4.0f.

538af1cd · Eli Zaretskii · aef16922 · 538af1cd
Commit 538af1cd authored Apr 15, 2002 by Eli Zaretskii
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--- a/etc/MACHINES
+++ b/etc/MACHINES
@@ -75,6 +75,11 @@ Alpha (DEC) running OSF/1 or GNU/Linux (alpha-dec-osf1, alpha-dec-linux-gnu)

      configure --x-includes=/usr/include --x-libraries=/usr/shlib

+  DEC C compiler version 5.9 (DEC C V5.9-005 on Digital UNIX V4.0f)
+  is reported to produce bogus binaries of Emacs 21.2 when the
+  command-line switches "-O4 -arch ev6 -tune ev6" are used.  Using
+  just -O4 produces a good executable.
+
  For 4.0 revision 564, and 4.0A and 4.0B, Emacs 20 seems to work
  with no special configuration options.  However, if you use GCC as
  your compiler, you will need version 2.8.1 or later, as older