+$ if archname .eqs. "VMS_AXP"
+$ then
+$!
+$! Case sensitive?
+$ echo ""
+$ echo "By default, perl (and pretty much everything else on VMS) uses
+$ echo "case-insensitive linker symbols. Which is to say, when the
+$ echo "underlying C code makes a call to a routine called Perl_foo in
+$ echo "the source, the name in the object modules or shareable images
+$ echo "is really PERL_FOO. There are some packages that use an
+$ echo "embedded perl interpreter that instead require case-sensitive
+$ echo "linker symbols.
+$ echo ""
+$ echo "If you have no idea what this means, and don't have
+$ echo "any program requiring anything, choose the default.
+$ dflt = be_case_sensitive
+$ rp = "Case-sensitive symbols [''dflt'] "
+$ gosub myread
+$ if ans.eqs."" then ans="''dflt'"
+$ be_case_sensitive = "''ans'"
+$!
+$! IEEE math?
+$ echo ""
+$ echo "Perl normally uses G_FLOAT format floating point numbers
+$ echo "internally, as do most things on VMS. You can, however, build
+$ echo "with IEEE floating point numbers instead if you need to.
+$ dflt = use_ieee_math
+$ rp = "Use IEEE math [''dflt'] "
+$ gosub myread
+$ if ans.eqs."" then ans="''dflt'"
+$ use_ieee_math = "''ans'"
+$ endif
+$! CC Flags
+$ echo ""
+$ echo "You can, if you need to, pass extra flags on to the C
+$ echo "compiler. In general you should only do this if you really,
+$ echo "really know what you're doing.
+$ dflt = user_c_flags
+$ rp = "Extra C flags [''dflt'] "
+$ gosub myread
+$ if ans.eqs."" then ans="''dflt'"
+$ user_c_flags = "''ans'"