VMS: add a note about DECC$* logical names

These logical names are used to make the C RTL change certain
behaviors, sometimes to make it act more like Unix.  While they can
make life easier in some cases, they can be disruptive as well.  When
building and testing OpenSSL, the latter is the case, so we ask people
to avoid using them.

Reviewed-by: Tim Hudson <tjh@openssl.org>

diff --git a/NOTES.VMS b/NOTES.VMS
index 034ecf4c6bb4593f5fbcf303a8ddc3fcc944567d..ba1dbb475daf7c71821eeaa8f5535c0177016db5 100644 (file)
--- a/NOTES.VMS
+++ b/NOTES.VMS
@@ -15,11 +15,15 @@
  About ANSI C compiler
  ---------------------
 
- An ANSI C compiled is needed among other things.  This means that VAX C
- is not and will not be supported.
+ An ANSI C compiled is needed among other things.  This means that
+ VAX C is not and will not be supported.
 
- We have only tested with DEC C (a.k.a HP VMS C / VSI C), compiling with
- a different ANSI C compiler may require some work.
+ We have only tested with DEC C (a.k.a HP VMS C / VSI C), compiling
+ with a different ANSI C compiler may require some work.
+
+ Please avoid using C RTL feature logical names DECC$* when building
+ and testing OpenSSL.  Most of all, they can be disruptive when
+ running the tests, as they affect the Perl interpreter.
 
 
  About MMS and DCL