This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Silence STDERR grumblings from Borland's math library.
[perl5.git] / makedef.pl
index 61107ff..8070f0a 100644 (file)
@@ -6,62 +6,46 @@
 # and by MacOS Classic.
 #
 # reads global.sym, pp.sym, perlvars.h, intrpvar.h, thrdvar.h, config.h
-# On OS/2 reads miniperl.map as well
+# On OS/2 reads miniperl.map and the previous version of perl5.def as well
 
 my $PLATFORM;
 my $CCTYPE;
 
-my %bincompat5005 =
-      (
-       Perl_call_atexit                =>      "perl_atexit",
-       Perl_eval_sv            =>      "perl_eval_sv",
-       Perl_eval_pv            =>      "perl_eval_pv",
-       Perl_call_argv          =>      "perl_call_argv",
-       Perl_call_method                =>      "perl_call_method",
-       Perl_call_pv            =>      "perl_call_pv",
-       Perl_call_sv            =>      "perl_call_sv",
-       Perl_get_av             =>      "perl_get_av",
-       Perl_get_cv             =>      "perl_get_cv",
-       Perl_get_hv             =>      "perl_get_hv",
-       Perl_get_sv             =>      "perl_get_sv",
-       Perl_init_i18nl10n      =>      "perl_init_i18nl10n",
-       Perl_init_i18nl14n      =>      "perl_init_i18nl14n",
-       Perl_new_collate                =>      "perl_new_collate",
-       Perl_new_ctype          =>      "perl_new_ctype",
-       Perl_new_numeric                =>      "perl_new_numeric",
-       Perl_require_pv         =>      "perl_require_pv",
-       Perl_safesyscalloc      =>      "Perl_safecalloc",
-       Perl_safesysfree                =>      "Perl_safefree",
-       Perl_safesysmalloc      =>      "Perl_safemalloc",
-       Perl_safesysrealloc     =>      "Perl_saferealloc",
-       Perl_set_numeric_local  =>      "perl_set_numeric_local",
-       Perl_set_numeric_standard  =>   "perl_set_numeric_standard",
-       Perl_malloc             =>      "malloc",
-       Perl_mfree              =>      "free",
-       Perl_realloc            =>      "realloc",
-       Perl_calloc             =>      "calloc",
-      );
-
-my $bincompat5005 = join("|", keys %bincompat5005);
-
 while (@ARGV) {
     my $flag = shift;
+    if ($flag =~ s/^CC_FLAGS=/ /) {
+       for my $fflag ($flag =~ /(?:^|\s)-D(\S+)/g) {
+           $fflag     .= '=1' unless $fflag =~ /^(\w+)=/;
+           $define{$1} = $2   if $fflag =~ /^(\w+)=(.+)$/;
+       }
+       next;
+    }
     $define{$1} = 1 if ($flag =~ /^-D(\w+)$/);
     $define{$1} = $2 if ($flag =~ /^-D(\w+)=(.+)$/);
     $CCTYPE   = $1 if ($flag =~ /^CCTYPE=(\w+)$/);
     $PLATFORM = $1 if ($flag =~ /^PLATFORM=(\w+)$/);
-       if ($PLATFORM eq 'netware') {
-               $FILETYPE = $1 if ($flag =~ /^FILETYPE=(\w+)$/);
-       }
+    if ($PLATFORM eq 'netware') {
+       $FILETYPE = $1 if ($flag =~ /^FILETYPE=(\w+)$/);
+    }
 }
 
-my @PLATFORM = qw(aix win32 os2 MacOS netware);
+my @PLATFORM = qw(aix win32 wince os2 MacOS netware);
 my %PLATFORM;
 @PLATFORM{@PLATFORM} = ();
 
 defined $PLATFORM || die "PLATFORM undefined, must be one of: @PLATFORM\n";
 exists $PLATFORM{$PLATFORM} || die "PLATFORM must be one of: @PLATFORM\n";
 
+my %exportperlmalloc =
+    (
+       Perl_malloc             =>      "malloc",
+       Perl_mfree              =>      "free",
+       Perl_realloc            =>      "realloc",
+       Perl_calloc             =>      "calloc",
+    );
+
+my $exportperlmalloc = $PLATFORM eq 'os2';
+
 my $config_sh   = "config.sh";
 my $config_h    = "config.h";
 my $thrdvar_h   = "thrdvar.h";
@@ -71,38 +55,50 @@ my $global_sym  = "global.sym";
 my $pp_sym      = "pp.sym";
 my $globvar_sym = "globvar.sym";
 my $perlio_sym  = "perlio.sym";
+my $static_ext = "";
 
 if ($PLATFORM eq 'aix') {
     # Nothing for now.
 }
-elsif ($PLATFORM eq 'win32' || $PLATFORM eq 'netware') {
+elsif ($PLATFORM =~ /^win(?:32|ce)$/ || $PLATFORM eq 'netware') {
     $CCTYPE = "MSVC" unless defined $CCTYPE;
     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
-               $pp_sym, $globvar_sym, $perlio_sym) {
+            $pp_sym, $globvar_sym, $perlio_sym) {
        s!^!..\\!;
     }
 }
 elsif ($PLATFORM eq 'MacOS') {
     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
-               $pp_sym, $globvar_sym, $perlio_sym) {
+            $pp_sym, $globvar_sym, $perlio_sym) {
        s!^!::!;
     }
 }
 
-unless ($PLATFORM eq 'win32' || $PLATFORM eq 'MacOS' || $PLATFORM eq 'netware') {
+unless ($PLATFORM eq 'win32' || $PLATFORM eq 'wince' || $PLATFORM eq 'MacOS' || $PLATFORM eq 'netware') {
     open(CFG,$config_sh) || die "Cannot open $config_sh: $!\n";
     while (<CFG>) {
        if (/^(?:ccflags|optimize)='(.+)'$/) {
            $_ = $1;
            $define{$1} = 1 while /-D(\w+)/g;
        }
+        if (/^(d_(?:mmap|sigaction))='(.+)'$/) {
+            $define{$1} = $2;
+        }
        if ($PLATFORM eq 'os2') {
-           $CONFIG_ARGS = $1 if /^(?:config_args)='(.+)'$/;
-           $ARCHNAME =    $1 if /^(?:archname)='(.+)'$/;
+           $CONFIG_ARGS = $1 if /^config_args='(.+)'$/;
+           $ARCHNAME =    $1 if /^archname='(.+)'$/;
+           $PATCHLEVEL =  $1 if /^perl_patchlevel='(.+)'$/;
        }
     }
     close(CFG);
 }
+if ($PLATFORM eq 'win32' || $PLATFORM eq 'wince') {
+    open(CFG,"<..\\$config_sh") || die "Cannot open ..\\$config_sh: $!\n";
+    if ((join '', <CFG>) =~ /^static_ext='(.*)'$/m) {
+        $static_ext = $1;
+    }
+    close(CFG);
+}
 
 open(CFG,$config_h) || die "Cannot open $config_h: $!\n";
 while (<CFG>) {
@@ -115,6 +111,10 @@ close(CFG);
 
 # perl.h logic duplication begins
 
+if ($define{PERL_IMPLICIT_SYS}) {
+    $define{PL_OP_SLAB_ALLOC} = 1;
+}
+
 if ($define{USE_ITHREADS}) {
     if (!$define{MULTIPLICITY}) {
         $define{MULTIPLICITY} = 1;
@@ -123,26 +123,46 @@ if ($define{USE_ITHREADS}) {
 
 $define{PERL_IMPLICIT_CONTEXT} ||=
     $define{USE_ITHREADS} ||
-    $define{USE_5005THREADS}  ||
     $define{MULTIPLICITY} ;
 
+if ($define{USE_ITHREADS} && $PLATFORM ne 'win32' && $^O ne 'darwin') {
+    $define{USE_REENTRANT_API} = 1;
+}
+
 # perl.h logic duplication ends
 
-if ($PLATFORM eq 'win32') {
+my $sym_ord = 0;
+
+if ($PLATFORM =~ /^win(?:32|ce)$/) {
     warn join(' ',keys %define)."\n";
-    print "LIBRARY Perl57\n";
+    ($dll = ($define{PERL_DLL} || "perl59")) =~ s/\.dll$//i;
+    print "LIBRARY $dll\n";
     print "DESCRIPTION 'Perl interpreter'\n";
     print "EXPORTS\n";
     if ($define{PERL_IMPLICIT_SYS}) {
        output_symbol("perl_get_host_info");
        output_symbol("perl_alloc_override");
-    output_symbol("perl_clone_host");
+    }
+    if ($define{USE_ITHREADS} and $define{PERL_IMPLICIT_SYS}) {
+       output_symbol("perl_clone_host");
     }
 }
 elsif ($PLATFORM eq 'os2') {
+    if (open my $fh, '<', 'perl5.def') {
+      while (<$fh>) {
+       last if /^\s*EXPORTS\b/;
+      }
+      while (<$fh>) {
+       $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
+       # This allows skipping ordinals which were used in older versions
+       $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
+      }
+      $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
+    }
     ($v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
     $v .= '-thread' if $ARCHNAME =~ /-thread/;
     ($dll = $define{PERL_DLL}) =~ s/\.dll$//i;
+    $v .= "\@$PATCHLEVEL" if $PATCHLEVEL;
     $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $CONFIG_ARGS'";
     $d = substr($d, 0, 249) . "...'" if length $d > 253;
     print <<"---EOP---";
@@ -167,14 +187,14 @@ elsif ($PLATFORM eq 'aix') {
 }
 elsif ($PLATFORM eq 'netware') {
        if ($FILETYPE eq 'def') {
-       print "LIBRARY Perl57\n";
+       print "LIBRARY perl59\n";
        print "DESCRIPTION 'Perl interpreter for NetWare'\n";
        print "EXPORTS\n";
        }
        if ($define{PERL_IMPLICIT_SYS}) {
-       output_symbol("perl_get_host_info");
-       output_symbol("perl_alloc_override");
-    output_symbol("perl_clone_host");
+           output_symbol("perl_get_host_info");
+           output_symbol("perl_alloc_override");
+           output_symbol("perl_clone_host");
        }
 }
 
@@ -200,7 +220,6 @@ sub emit_symbols {
     }
 }
 
-
 if ($PLATFORM eq 'win32') {
     skip_symbols [qw(
                     PL_statusvalue_vms
@@ -252,6 +271,83 @@ if ($PLATFORM eq 'win32') {
                     Perl_my_popen
                     )];
 }
+else {
+    skip_symbols [qw(
+                    Perl_do_spawn
+                    Perl_do_spawn_nowait
+                    Perl_do_aspawn
+                    )];
+}
+if ($PLATFORM eq 'wince') {
+    skip_symbols [qw(
+                    PL_statusvalue_vms
+                    PL_archpat_auto
+                    PL_cryptseen
+                    PL_DBcv
+                    PL_generation
+                    PL_lastgotoprobe
+                    PL_linestart
+                    PL_modcount
+                    PL_pending_ident
+                    PL_sortcxix
+                    PL_sublex_info
+                    PL_timesbuf
+                    PL_collation_ix
+                    PL_collation_name
+                    PL_collation_standard
+                    PL_collxfrm_base
+                    PL_collxfrm_mult
+                    PL_numeric_compat1
+                    PL_numeric_local
+                    PL_numeric_name
+                    PL_numeric_radix_sv
+                    PL_numeric_standard
+                    PL_vtbl_collxfrm
+                    Perl_sv_collxfrm
+                    setgid
+                    setuid
+                    win32_free_childdir
+                    win32_free_childenv
+                    win32_get_childdir
+                    win32_get_childenv
+                    win32_spawnvp
+                    main
+                    Perl_ErrorNo
+                    Perl_GetVars
+                    Perl_do_exec3
+                    Perl_do_ipcctl
+                    Perl_do_ipcget
+                    Perl_do_msgrcv
+                    Perl_do_msgsnd
+                    Perl_do_semop
+                    Perl_do_shmio
+                    Perl_dump_fds
+                    Perl_init_thread_intern
+                    Perl_my_bzero
+                    Perl_my_bcopy
+                    Perl_my_htonl
+                    Perl_my_ntohl
+                    Perl_my_swap
+                    Perl_my_chsize
+                    Perl_same_dirent
+                    Perl_setenv_getix
+                    Perl_unlnk
+                    Perl_watch
+                    Perl_safexcalloc
+                    Perl_safexmalloc
+                    Perl_safexfree
+                    Perl_safexrealloc
+                    Perl_my_memcmp
+                    Perl_my_memset
+                    PL_cshlen
+                    PL_cshname
+                    PL_opsave
+                    Perl_do_exec
+                    Perl_getenv_len
+                    Perl_my_pclose
+                    Perl_my_popen
+                    )];
+}
 elsif ($PLATFORM eq 'aix') {
     skip_symbols([qw(
                     Perl_dump_fds
@@ -292,6 +388,8 @@ elsif ($PLATFORM eq 'os2') {
                    dlsym
                    dlerror
                    dlclose
+                   dup2
+                   dup
                    my_tmpfile
                    my_tmpnam
                    my_flock
@@ -302,6 +400,8 @@ elsif ($PLATFORM eq 'os2') {
                    my_getpwent
                    my_setpwent
                    my_endpwent
+                   fork_with_resources
+                   croak_with_os2error
                    setgrent
                    endgrent
                    getgrent
@@ -311,6 +411,10 @@ elsif ($PLATFORM eq 'os2') {
                    nthreads_cond
                    os2_cond_wait
                    os2_stat
+                   os2_execname
+                   async_mssleep
+                   msCounter
+                   InfoTable
                    pthread_join
                    pthread_create
                    pthread_detach
@@ -335,7 +439,17 @@ elsif ($PLATFORM eq 'os2') {
                    Perl_hab_GET
                    loadByOrdinal
                    pExtFCN
+                   os2error
+                   ResetWinError
+                   CroakWinError
+                   PL_do_undump
                    )]);
+    emit_symbols([qw(os2_cond_wait
+                    pthread_join
+                    pthread_create
+                    pthread_detach
+                   )])
+      if $define{'USE_5005THREADS'} or $define{'USE_ITHREADS'};
 }
 elsif ($PLATFORM eq 'MacOS') {
     skip_symbols [qw(
@@ -413,6 +527,33 @@ elsif ($PLATFORM eq 'netware') {
                        Perl_getenv_len
                        Perl_my_pclose
                        Perl_my_popen
+                       Perl_sys_intern_init
+                       Perl_sys_intern_dup
+                       Perl_sys_intern_clear
+                       Perl_my_bcopy
+                       Perl_PerlIO_write
+                       Perl_PerlIO_unread
+                       Perl_PerlIO_tell
+                       Perl_PerlIO_stdout
+                       Perl_PerlIO_stdin
+                       Perl_PerlIO_stderr
+                       Perl_PerlIO_setlinebuf
+                       Perl_PerlIO_set_ptrcnt
+                       Perl_PerlIO_set_cnt
+                       Perl_PerlIO_seek
+                       Perl_PerlIO_read
+                       Perl_PerlIO_get_ptr
+                       Perl_PerlIO_get_cnt
+                       Perl_PerlIO_get_bufsiz
+                       Perl_PerlIO_get_base
+                       Perl_PerlIO_flush
+                       Perl_PerlIO_fill
+                       Perl_PerlIO_fileno
+                       Perl_PerlIO_error
+                       Perl_PerlIO_eof
+                       Perl_PerlIO_close
+                       Perl_PerlIO_clearerr
+                       PerlIO_perlio
                        )];
 }
 
@@ -423,11 +564,17 @@ unless ($define{'DEBUGGING'}) {
                    Perl_debprofdump
                    Perl_debstack
                    Perl_debstackptrs
-                   Perl_runops_debug
                    Perl_sv_peek
                    PL_block_type
                    PL_watchaddr
                    PL_watchok
+                   PL_watch_pvx
+                   )];
+}
+
+if ($define{'PERL_IMPLICIT_CONTEXT'}) {
+    skip_symbols [qw(
+                   PL_sig_sv
                    )];
 }
 
@@ -452,12 +599,11 @@ else {
                    )];
 }
 
-unless ($define{'PERL_FLEXIBLE_EXCEPTIONS'}) {
+unless ($define{'PERL_OLD_COPY_ON_WRITE'}) {
     skip_symbols [qw(
-                   PL_protect
-                   Perl_default_protect
-                   Perl_vdefault_protect
-                   )];
+                   Perl_sv_setsv_cow
+                   Perl_sv_release_IVX
+                 )];
 }
 
 unless ($define{'USE_REENTRANT_API'}) {
@@ -472,8 +618,10 @@ if ($define{'MYMALLOC'}) {
                    Perl_get_mstats
                    Perl_strdup
                    Perl_putenv
+                   MallocCfg_ptr
+                   MallocCfgP_ptr
                    )];
-    if ($define{'USE_5005THREADS'} || $define{'USE_ITHREADS'}) {
+    if ($define{'USE_ITHREADS'}) {
        emit_symbols [qw(
                        PL_malloc_mutex
                        )];
@@ -490,16 +638,24 @@ else {
                    Perl_dump_mstats
                    Perl_get_mstats
                    Perl_malloced_size
+                   MallocCfg_ptr
+                   MallocCfgP_ptr
                    )];
 }
 
-unless ($define{'USE_5005THREADS'} || $define{'USE_ITHREADS'}) {
+unless ($define{'PERL_MALLOC_WRAP'}) {
+    skip_symbols [qw(
+                   PL_memory_wrap
+                   )];
+}
+
+unless ($define{'USE_ITHREADS'}) {
     skip_symbols [qw(
                    PL_thr_key
                    )];
 }
 
-unless ($define{'USE_5005THREADS'}) {
+# USE_5005THREADS symbols. Kept as reference for easier removal
     skip_symbols [qw(
                    PL_sv_mutex
                    PL_strtab_mutex
@@ -526,16 +682,18 @@ unless ($define{'USE_5005THREADS'}) {
                    Perl_magic_mutexfree
                    Perl_sv_lock
                    )];
-}
 
 unless ($define{'USE_ITHREADS'}) {
     skip_symbols [qw(
                    PL_ptr_table
+                   PL_pte_root
+                   PL_pte_arenaroot
                    PL_op_mutex
                    PL_regex_pad
                    PL_regex_padav
                    PL_sharedsv_space
                    PL_sharedsv_space_mutex
+                   PL_dollarzero_mutex
                    Perl_dirp_dup
                    Perl_cx_dup
                    Perl_si_dup
@@ -547,6 +705,8 @@ unless ($define{'USE_ITHREADS'}) {
                    Perl_mg_dup
                    Perl_re_dup
                    Perl_sv_dup
+                   Perl_rvpv_dup
+                   Perl_hek_dup
                    Perl_sys_intern_dup
                    Perl_ptr_table_clear
                    Perl_ptr_table_fetch
@@ -565,6 +725,7 @@ unless ($define{'USE_ITHREADS'}) {
                    Perl_sharedsv_thrcnt_dec
                    Perl_sharedsv_thrcnt_inc
                    Perl_sharedsv_unlock
+                   Perl_stashpv_hvname_match
                    )];
 }
 
@@ -597,6 +758,51 @@ unless ($define{'FAKE_THREADS'}) {
     skip_symbols [qw(PL_curthr)];
 }
 
+unless ($define{'PL_OP_SLAB_ALLOC'}) {
+    skip_symbols [qw(
+                     PL_OpPtr
+                     PL_OpSlab
+                     PL_OpSpace
+                    Perl_Slab_Alloc
+                    Perl_Slab_Free
+                    )];
+}
+
+unless ($define{'THREADS_HAVE_PIDS'}) {
+    skip_symbols [qw(PL_ppid)];
+}
+
+unless ($define{'PERL_NEED_APPCTX'}) {
+    skip_symbols [qw(
+                   PL_appctx
+                   )];
+}
+
+unless ($define{'PERL_NEED_TIMESBASE'}) {
+    skip_symbols [qw(
+                   PL_timesbase
+                   )];
+}
+
+unless ($define{'d_mmap'}) {
+    skip_symbols [qw(
+                   PL_mmap_page_size
+                   )];
+}
+
+if ($define{'d_sigaction'}) {
+    skip_symbols [qw(
+                   PL_sig_trapped
+                   )];
+}
+
+if ($^O ne 'vms') {
+    # VMS does its own thing for these symbols.
+    skip_symbols [qw(PL_sig_handlers_initted
+                     PL_sig_ignoring
+                     PL_sig_defaulting)];
+}  
+
 sub readvar {
     my $file = shift;
     my $proc = shift || sub { "PL_$_[2]" };
@@ -604,67 +810,119 @@ sub readvar {
     my @syms;
     while (<VARS>) {
        # All symbols have a Perl_ prefix because that's what embed.h
-       # sticks in front of them.
-       push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?C?)\(([IGT])(\w+)/);
+       # sticks in front of them.  The A?I?S?C? is strictly speaking
+       # wrong.
+       push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?S?C?)\(([IGT])(\w+)/);
     }
     close(VARS);
     return \@syms;
 }
 
-if ($define{'USE_5005THREADS'}) {
-    my $thrd = readvar($thrdvar_h);
-    skip_symbols $thrd;
-}
-
 if ($define{'PERL_GLOBAL_STRUCT'}) {
     my $global = readvar($perlvars_h);
     skip_symbols $global;
     emit_symbol('Perl_GetVars');
     emit_symbols [qw(PL_Vars PL_VarsPtr)] unless $CCTYPE eq 'GCC';
+} else {
+    skip_symbols [qw(Perl_init_global_struct Perl_free_global_struct)];
 }
 
 # functions from *.sym files
 
 my @syms = ($global_sym, $globvar_sym); # $pp_sym is not part of the API
 
+# Symbols that are the public face of the PerlIO layers implementation
+# These are in _addition to_ the public face of the abstraction
+# and need to be exported to allow XS modules to implement layers
 my @layer_syms = qw(
-                        PerlIOBase_clearerr
-                        PerlIOBase_close
-                        PerlIOBase_dup
-                        PerlIOBase_eof
-                        PerlIOBase_error
-                        PerlIOBase_fileno
-                        PerlIOBase_setlinebuf
-                        PerlIOBase_pushed
-                        PerlIOBase_read
-                        PerlIOBase_unread
-                        PerlIOBuf_bufsiz
-                        PerlIOBuf_fill
-                        PerlIOBuf_flush
-                        PerlIOBuf_get_cnt
-                        PerlIOBuf_get_ptr
-                        PerlIOBuf_open
-                        PerlIOBuf_pushed
-                        PerlIOBuf_read
-                        PerlIOBuf_seek
-                        PerlIOBuf_set_ptrcnt
-                        PerlIOBuf_tell
-                        PerlIOBuf_unread
-                        PerlIOBuf_write
-                        PerlIO_define_layer
-                        PerlIO_arg_fetch
-                        PerlIO_pending
-                        PerlIO_allocate
-                        PerlIO_push
-                        PerlIO_sv_dup
-                        PerlIO_unread
+                   PerlIOBase_binmode
+                   PerlIOBase_clearerr
+                   PerlIOBase_close
+                   PerlIOBase_dup
+                   PerlIOBase_eof
+                   PerlIOBase_error
+                   PerlIOBase_fileno
+                   PerlIOBase_noop_fail
+                   PerlIOBase_noop_ok
+                   PerlIOBase_popped
+                   PerlIOBase_pushed
+                   PerlIOBase_read
+                   PerlIOBase_setlinebuf
+                   PerlIOBase_unread
+                   PerlIOBuf_bufsiz
+                   PerlIOBuf_close
+                   PerlIOBuf_dup
+                   PerlIOBuf_fill
+                   PerlIOBuf_flush
+                   PerlIOBuf_get_base
+                   PerlIOBuf_get_cnt
+                   PerlIOBuf_get_ptr
+                   PerlIOBuf_open
+                   PerlIOBuf_popped
+                   PerlIOBuf_pushed
+                   PerlIOBuf_read
+                   PerlIOBuf_seek
+                   PerlIOBuf_set_ptrcnt
+                   PerlIOBuf_tell
+                   PerlIOBuf_unread
+                   PerlIOBuf_write
+                   PerlIO_allocate
+                   PerlIO_apply_layera
+                   PerlIO_apply_layers
+                   PerlIO_arg_fetch
+                   PerlIO_debug
+                   PerlIO_define_layer
+                   PerlIO_isutf8
+                   PerlIO_layer_fetch
+                   PerlIO_list_free
+                   PerlIO_modestr
+                   PerlIO_parse_layers
+                   PerlIO_pending
+                   PerlIO_perlio
+                   PerlIO_pop
+                   PerlIO_push
+                   PerlIO_sv_dup
+                   Perl_PerlIO_clearerr
+                   Perl_PerlIO_close
+                   Perl_PerlIO_eof
+                   Perl_PerlIO_error
+                   Perl_PerlIO_fileno
+                   Perl_PerlIO_fill
+                   Perl_PerlIO_flush
+                   Perl_PerlIO_get_base
+                   Perl_PerlIO_get_bufsiz
+                   Perl_PerlIO_get_cnt
+                   Perl_PerlIO_get_ptr
+                   Perl_PerlIO_read
+                   Perl_PerlIO_seek
+                   Perl_PerlIO_set_cnt
+                   Perl_PerlIO_set_ptrcnt
+                   Perl_PerlIO_setlinebuf
+                   Perl_PerlIO_stderr
+                   Perl_PerlIO_stdin
+                   Perl_PerlIO_stdout
+                   Perl_PerlIO_tell
+                   Perl_PerlIO_unread
+                   Perl_PerlIO_write
 );
+if ($PLATFORM eq 'netware') {
+    push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
+}
 
 if ($define{'USE_PERLIO'}) {
+    # Export the symols that make up the PerlIO abstraction, regardless
+    # of its implementation - read from a file
     push @syms, $perlio_sym;
+
+    # This part is then dependent on how the abstraction is implemented
     if ($define{'USE_SFIO'}) {
+       # Old legacy non-stdio "PerlIO"
        skip_symbols \@layer_syms;
+       skip_symbols [qw(perlsio_binmode)];
        # SFIO defines most of the PerlIO routines as macros
+       # So undo most of what $perlio_sym has just done - d'oh !
+       # Perhaps it would be better to list the ones which do exist
+       # And emit them
        skip_symbols [qw(
                         PerlIO_canset_cnt
                         PerlIO_clearerr
@@ -707,11 +965,51 @@ if ($define{'USE_PERLIO'}) {
                         PerlIO_ungetc
                         PerlIO_vprintf
                         PerlIO_write
+                        PerlIO_perlio
+                        Perl_PerlIO_clearerr
+                        Perl_PerlIO_close
+                        Perl_PerlIO_eof
+                        Perl_PerlIO_error
+                        Perl_PerlIO_fileno
+                        Perl_PerlIO_fill
+                        Perl_PerlIO_flush
+                        Perl_PerlIO_get_base
+                        Perl_PerlIO_get_bufsiz
+                        Perl_PerlIO_get_cnt
+                        Perl_PerlIO_get_ptr
+                        Perl_PerlIO_read
+                        Perl_PerlIO_seek
+                        Perl_PerlIO_set_cnt
+                        Perl_PerlIO_set_ptrcnt
+                        Perl_PerlIO_setlinebuf
+                        Perl_PerlIO_stderr
+                        Perl_PerlIO_stdin
+                        Perl_PerlIO_stdout
+                        Perl_PerlIO_tell
+                        Perl_PerlIO_unread
+                        Perl_PerlIO_write
+                         PL_def_layerlist
+                         PL_known_layers
+                         PL_perlio
                         )];
     }
+    else {
+       # PerlIO with layers - export implementation
+       emit_symbols \@layer_syms;
+       emit_symbols [qw(perlsio_binmode)];
+    }
 } else {
-       # Skip the PerlIO New Generation symbols.
+       # -Uuseperlio
+       # Skip the PerlIO layer symbols - although
+       # nothing should have exported them anyway.
        skip_symbols \@layer_syms;
+       skip_symbols [qw(perlsio_binmode)];
+        skip_symbols [qw(PL_def_layerlist PL_known_layers PL_perlio)];
+
+       # Also do NOT add abstraction symbols from $perlio_sym
+       # abstraction is done as #define to stdio
+       # Remaining remnants that _may_ be functions
+       # are handled in <DATA>
 }
 
 for my $syms (@syms) {
@@ -736,7 +1034,7 @@ if ($define{'MULTIPLICITY'}) {
        emit_symbols $glob;
     }
     # XXX AIX seems to want the perlvars.h symbols, for some reason
-    if ($PLATFORM eq 'aix') {
+    if ($PLATFORM eq 'aix' or $PLATFORM eq 'os2') {    # OS/2 needs PL_thr_key
        my $glob = readvar($perlvars_h);
        emit_symbols $glob;
     }
@@ -750,7 +1048,7 @@ else {
        my $glob = readvar($intrpvar_h);
        emit_symbols $glob;
     }
-    unless ($define{'MULTIPLICITY'} || $define{'USE_5005THREADS'}) {
+    unless ($define{'MULTIPLICITY'}) {
        my $glob = readvar($thrdvar_h);
        emit_symbols $glob;
     }
@@ -771,7 +1069,7 @@ while (<DATA>) {
     try_symbol($_);
 }
 
-if ($PLATFORM eq 'win32') {
+if ($PLATFORM =~ /^win(?:32|ce)$/) {
     foreach my $symbol (qw(
                            setuid
                            setgid
@@ -779,7 +1077,9 @@ if ($PLATFORM eq 'win32') {
                            Perl_init_os_extras
                            Perl_thread_create
                            Perl_win32_init
+                           Perl_win32_term
                            RunPerl
+                           win32_async_check
                            win32_errno
                            win32_environ
                            win32_abort
@@ -790,6 +1090,7 @@ if ($PLATFORM eq 'win32') {
                            win32_pclose
                            win32_rename
                            win32_setmode
+                           win32_chsize
                            win32_lseek
                            win32_tell
                            win32_dup
@@ -867,6 +1168,7 @@ if ($PLATFORM eq 'win32') {
                            win32_link
                            win32_unlink
                            win32_utime
+                           win32_gettimeofday
                            win32_uname
                            win32_wait
                            win32_waitpid
@@ -883,7 +1185,11 @@ if ($PLATFORM eq 'win32') {
                            win32_getpid
                            win32_crypt
                            win32_dynaload
-
+                           win32_get_childenv
+                           win32_free_childenv
+                           win32_clearenv
+                           win32_get_childdir
+                           win32_free_childdir
                            win32_stdin
                            win32_stdout
                            win32_stderr
@@ -928,14 +1234,18 @@ if ($PLATFORM eq 'win32') {
     {
        try_symbol($symbol);
     }
+    if ($CCTYPE eq "BORLAND") {
+       try_symbol('_matherr');
+    }
 }
 elsif ($PLATFORM eq 'os2') {
     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
     close MAP or die 'Cannot close miniperl.map';
 
-    @missing = grep { !exists $mapped{$_} and !exists $bincompat5005{$_} }
+    @missing = grep { !exists $mapped{$_} }
                    keys %export;
+    @missing = grep { !exists $exportperlmalloc{$_} } @missing;
     delete $export{$_} foreach @missing;
 }
 elsif ($PLATFORM eq 'MacOS') {
@@ -1054,6 +1364,7 @@ foreach my $symbol (qw(
                        nw_setprotoent
                        nw_setservent
                        nw_setsockopt
+                       nw_inet_ntoa
                        nw_shutdown
                        nw_crypt
                        nw_execvp
@@ -1077,12 +1388,27 @@ foreach my $symbol (qw(
                        fnInsertHashListAddrs
                        fnGetHashListAddrs
                        Perl_deb
+                       Perl_sv_setsv
+                       Perl_sv_catsv
+                       Perl_sv_catpvn
+                       Perl_sv_2pv
+                       nw_freeenviron
+                       Remove_Thread_Ctx
                           ))
     {
        try_symbol($symbol);
     }
 }
 
+# records of type boot_module for statically linked modules (except Dynaloader)
+$static_ext =~ s/\//__/g;
+$static_ext =~ s/\bDynaLoader\b//;
+my @stat_mods = map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext;
+foreach my $symbol (@stat_mods)
+    {
+       try_symbol($symbol);
+    }
+
 # Now all symbols should be defined because
 # next we are going to output them.
 
@@ -1090,11 +1416,15 @@ foreach my $symbol (sort keys %export) {
     output_symbol($symbol);
 }
 
-if ($PLATFORM eq 'netware') {
-       # This may not be the right way to do.  This is to make sure
-       # that the last symbol will not contain a comma else
-       # Watcom linker cribs
-       print "\tdummy\n";
+if ($PLATFORM eq 'os2') {
+       print <<EOP;
+    dll_perlmain=main
+    fill_extLibpath
+    dir_subst
+    Perl_OS2_handler_install
+
+; LAST_ORDINAL=$sym_ord
+EOP
 }
 
 sub emit_symbol {
@@ -1103,13 +1433,9 @@ sub emit_symbol {
     $export{$symbol} = 1;
 }
 
-my $sym_ord = 0;
-
 sub output_symbol {
     my $symbol = shift;
-    $symbol = $bincompat5005{$symbol}
-       if $define{PERL_BINCOMPAT_5005} and $symbol =~ /^($bincompat5005)$/;
-    if ($PLATFORM eq 'win32') {
+    if ($PLATFORM =~ /^win(?:32|ce)$/) {
        $symbol = "_$symbol" if $CCTYPE eq 'BORLAND';
        print "\t$symbol\n";
 # XXX: binary compatibility between compilers is an exercise
@@ -1135,7 +1461,12 @@ sub output_symbol {
 #      }
     }
     elsif ($PLATFORM eq 'os2') {
-       printf qq(    %-31s \@%s\n), qq("$symbol"), ++$sym_ord;
+       printf qq(    %-31s \@%s\n),
+         qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
+       printf qq(    %-31s \@%s\n),
+         qq("$exportperlmalloc{$symbol}" = "$symbol"),
+         $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
+         if $exportperlmalloc and exists $exportperlmalloc{$symbol};
     }
     elsif ($PLATFORM eq 'aix' || $PLATFORM eq 'MacOS') {
        print "$symbol\n";
@@ -1158,43 +1489,12 @@ perl_destruct
 perl_free
 perl_parse
 perl_run
-PerlIOBase_clearerr
-PerlIOBase_close
-PerlIOBase_dup
-PerlIOBase_eof
-PerlIOBase_error
-PerlIOBase_fileno
-PerlIOBase_pushed
-PerlIOBase_read
-PerlIOBase_setlinebuf
-PerlIOBase_unread
-PerlIOBuf_bufsiz
-PerlIOBuf_fill
-PerlIOBuf_flush
-PerlIOBuf_get_cnt
-PerlIOBuf_get_ptr
-PerlIOBuf_open
-PerlIOBuf_pushed
-PerlIOBuf_read
-PerlIOBuf_seek
-PerlIOBuf_set_ptrcnt
-PerlIOBuf_tell
-PerlIOBuf_unread
-PerlIOBuf_write
-PerlIO_allocate
-PerlIO_apply_layers
-PerlIO_arg_fetch
+# Oddities from PerlIO
 PerlIO_binmode
-PerlIO_define_layer
-PerlIO_define_layer
 PerlIO_getpos
 PerlIO_init
-PerlIO_pending
-PerlIO_push
 PerlIO_setpos
 PerlIO_sprintf
 PerlIO_sv_dup
 PerlIO_tmpfile
-PerlIO_unread
 PerlIO_vsprintf
-perlsio_binmode