_isterm is substituted instead of isatty, s?random instead of srand.
`register' disabled if -DDEBUGGING and not AOUT build: stupid SD386.
3-argument select() was stomping over memory.
+
+after 5.003_21:
+ Can start scripts by executing 'dir/script' and
+ 'script.sh'. Form without extension will call shell only if
+ the specified file exists (will not look on path) (to prohibit
+ trying to run shell commands directly). - Needed by magic.t.
+
+after 5.003_27:
+ ALTERNATE_SHEBANG="extproc " supported, thus options on this
+ line are processed (possibly twice). -S is made legal on such
+ a line. This -S -x is not needed any more.
+ perl.dll may be used from non-EMX programs (via PERL_SYS_INIT
+ - the caller should have valid variable "env" with
+ environment). Known problems: $$ does not work - is 0, waitpid
+ returns immediately, thus Perl cannot wait for completion of
+ started programs.