pre-fixpak22 configuration (calling getpriority() on
non-existing process triggers a system-wide bug).
+
+ PrfDB was using a bug in processing XSUBs returning U32.
+
Variable $OS2::emx_rev implemented (string and numberic values
are the same as C variables _emx_rev and _emx_vprt).
Variable $OS2::emx_env implemented (same as C variable _emx_env).
If the only shell-metachars of a command are ' 2>&1' at the
end of a command, it is executed without calling the external shell.
+
+after 5.005_57:
+ Make UDP sockets return correct caller address (OS2 API bug);
+ Enable TCPIPV4 defines (works with Warp 3 IAK too?!);
+ Force Unix-domain sockets to start with "/socket", convert
+ '/' to '\' in the calls;
+ Make C<system 1, $cmd> to treat $cmd as in C<system $cmd>;
+ Autopatch Configure;
+ Find name and location of g[nu]patch.exe;
+ Autocopy perl????.dll to t/ when testing;
+
+after 5.005_62:
+ Extract a lightweight DLL access module OS2::DLL from OS2::REXX
+ which would not load REXX runtime system;
+ Allow compile with os2.h which loads os2tk.h instead of os2emx.h;
+ Put the version of EMX CRTL into -D define;
+ Use _setsyserror() to store last error of OS/2 API for $^E;
+ New macro PERL_SYS_INIT3(argvp, argcp, envp);
+ Make Dynaloader return info on the failing module after failed dl_open();
+ OS2::REXX test were done for interactive testing (were writing
+ "ok" to stderr);
+ system() and friends return -1 on failure (was 0xFF00);
+ Put the full name of executable into $^X
+ (alas, uppercased - but with /);
+ t/io/fs.t was failing on HPFS386;
+ Remove extra ';' from defines for MQ operations.