+ We have only tested with DEC C (a.k.a HP VMS C / VSI C) and require
+ version 7.1 or later. 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 ODS-5 directory names and Perl
+ ------------------------------------
+
+ It seems that the perl function canonpath() in the File::Spec module
+ doesn't treat file specifications where the last directory name
+ contains periods very well. Unfortunately, some versions of VMS tar
+ will keep the periods in the OpenSSL source directory instead of
+ converting them to underscore, thereby leaving your source in
+ something like [.openssl-1^.1^.0]. This will lead to issues when
+ configuring and building OpenSSL.
+
+ We have no replacement for Perl's canonpath(), so the best workaround
+ for now is to rename the OpenSSL source directory, as follows (please
+ adjust for the actual source directory name you have):
+
+ $ rename openssl-1^.1^.0.DIR openssl-1_1_0.DIR
+
+
+ About MMS and DCL
+ -----------------
+
+ MMS has certain limitations when it comes to line length, and DCL has
+ certain limitations when it comes to total command length. We do
+ what we can to mitigate, but there is the possibility that it's not
+ enough. Should you run into issues, a very simple solution is to set
+ yourself up a few logical names for the directory trees you're going
+ to use.