xref: /onnv-gate/usr/src/cmd/perl/5.8.4/distrib/lib/ExtUtils/MM_Win32.pm (revision 0:68f95e015346)
1package ExtUtils::MM_Win32;
2
3use strict;
4
5
6=head1 NAME
7
8ExtUtils::MM_Win32 - methods to override UN*X behaviour in ExtUtils::MakeMaker
9
10=head1 SYNOPSIS
11
12 use ExtUtils::MM_Win32; # Done internally by ExtUtils::MakeMaker if needed
13
14=head1 DESCRIPTION
15
16See ExtUtils::MM_Unix for a documentation of the methods provided
17there. This package overrides the implementation of these methods, not
18the semantics.
19
20=cut 
21
22use Config;
23use File::Basename;
24use File::Spec;
25use ExtUtils::MakeMaker qw( neatvalue );
26
27use vars qw(@ISA $VERSION $BORLAND $GCC $DMAKE $NMAKE);
28
29require ExtUtils::MM_Any;
30require ExtUtils::MM_Unix;
31@ISA = qw( ExtUtils::MM_Any ExtUtils::MM_Unix );
32$VERSION = '1.09';
33
34$ENV{EMXSHELL} = 'sh'; # to run `commands`
35
36$BORLAND = 1 if $Config{'cc'} =~ /^bcc/i;
37$GCC     = 1 if $Config{'cc'} =~ /^gcc/i;
38$DMAKE = 1 if $Config{'make'} =~ /^dmake/i;
39$NMAKE = 1 if $Config{'make'} =~ /^nmake/i;
40
41
42=head2 Overridden methods
43
44=over 4
45
46=item B<dlsyms>
47
48=cut
49
50sub dlsyms {
51    my($self,%attribs) = @_;
52
53    my($funcs) = $attribs{DL_FUNCS} || $self->{DL_FUNCS} || {};
54    my($vars)  = $attribs{DL_VARS} || $self->{DL_VARS} || [];
55    my($funclist) = $attribs{FUNCLIST} || $self->{FUNCLIST} || [];
56    my($imports)  = $attribs{IMPORTS} || $self->{IMPORTS} || {};
57    my(@m);
58
59    if (not $self->{SKIPHASH}{'dynamic'}) {
60	push(@m,"
61$self->{BASEEXT}.def: Makefile.PL
62",
63     q!	$(PERLRUN) -MExtUtils::Mksymlists \\
64     -e "Mksymlists('NAME'=>\"!, $self->{NAME},
65     q!\", 'DLBASE' => '!,$self->{DLBASE},
66     # The above two lines quoted differently to work around
67     # a bug in the 4DOS/4NT command line interpreter.  The visible
68     # result of the bug was files named q('extension_name',) *with the
69     # single quotes and the comma* in the extension build directories.
70     q!', 'DL_FUNCS' => !,neatvalue($funcs),
71     q!, 'FUNCLIST' => !,neatvalue($funclist),
72     q!, 'IMPORTS' => !,neatvalue($imports),
73     q!, 'DL_VARS' => !, neatvalue($vars), q!);"
74!);
75    }
76    join('',@m);
77}
78
79=item replace_manpage_separator
80
81Changes the path separator with .
82
83=cut
84
85sub replace_manpage_separator {
86    my($self,$man) = @_;
87    $man =~ s,/+,.,g;
88    $man;
89}
90
91
92=item B<maybe_command>
93
94Since Windows has nothing as simple as an executable bit, we check the
95file extension.
96
97The PATHEXT env variable will be used to get a list of extensions that
98might indicate a command, otherwise .com, .exe, .bat and .cmd will be
99used by default.
100
101=cut
102
103sub maybe_command {
104    my($self,$file) = @_;
105    my @e = exists($ENV{'PATHEXT'})
106          ? split(/;/, $ENV{PATHEXT})
107	  : qw(.com .exe .bat .cmd);
108    my $e = '';
109    for (@e) { $e .= "\Q$_\E|" }
110    chop $e;
111    # see if file ends in one of the known extensions
112    if ($file =~ /($e)$/i) {
113	return $file if -e $file;
114    }
115    else {
116	for (@e) {
117	    return "$file$_" if -e "$file$_";
118	}
119    }
120    return;
121}
122
123
124=item B<find_tests>
125
126The Win9x shell does not expand globs and I'll play it safe and assume
127other Windows variants don't either.
128
129So we do it for them.
130
131=cut
132
133sub find_tests {
134    return join(' ', <t\\*.t>);
135}
136
137
138=item B<init_DIRFILESEP>
139
140Using \ for Windows.
141
142=cut
143
144sub init_DIRFILESEP {
145    my($self) = shift;
146
147    # The ^ makes sure its not interpreted as an escape in nmake
148    $self->{DIRFILESEP} = $NMAKE ? '^\\' :
149                          $DMAKE ? '\\\\'
150                                 : '\\';
151}
152
153=item B<init_others>
154
155Override some of the Unix specific commands with portable
156ExtUtils::Command ones.
157
158Also provide defaults for LD and AR in case the %Config values aren't
159set.
160
161LDLOADLIBS's default is changed to $Config{libs}.
162
163Adjustments are made for Borland's quirks needing -L to come first.
164
165=cut
166
167sub init_others {
168    my ($self) = @_;
169
170    # Used in favor of echo because echo won't strip quotes. :(
171    $self->{ECHO}     ||= $self->oneliner('print qq{@ARGV}', ['-l']);
172    $self->{ECHO_N}   ||= $self->oneliner('print qq{@ARGV}');
173
174    $self->{TOUCH}    ||= '$(PERLRUN) -MExtUtils::Command -e touch';
175    $self->{CHMOD}    ||= '$(PERLRUN) -MExtUtils::Command -e chmod';
176    $self->{CP}       ||= '$(PERLRUN) -MExtUtils::Command -e cp';
177    $self->{RM_F}     ||= '$(PERLRUN) -MExtUtils::Command -e rm_f';
178    $self->{RM_RF}    ||= '$(PERLRUN) -MExtUtils::Command -e rm_rf';
179    $self->{MV}       ||= '$(PERLRUN) -MExtUtils::Command -e mv';
180    $self->{NOOP}     ||= 'rem';
181    $self->{TEST_F}   ||= '$(PERLRUN) -MExtUtils::Command -e test_f';
182    $self->{DEV_NULL} ||= '> NUL';
183
184    $self->{LD}     ||= $Config{ld} || 'link';
185    $self->{AR}     ||= $Config{ar} || 'lib';
186
187    $self->SUPER::init_others;
188
189    # Setting SHELL from $Config{sh} can break dmake.  Its ok without it.
190    delete $self->{SHELL};
191
192    $self->{LDLOADLIBS} ||= $Config{libs};
193    # -Lfoo must come first for Borland, so we put it in LDDLFLAGS
194    if ($BORLAND) {
195        my $libs = $self->{LDLOADLIBS};
196        my $libpath = '';
197        while ($libs =~ s/(?:^|\s)(("?)-L.+?\2)(?:\s|$)/ /) {
198            $libpath .= ' ' if length $libpath;
199            $libpath .= $1;
200        }
201        $self->{LDLOADLIBS} = $libs;
202        $self->{LDDLFLAGS} ||= $Config{lddlflags};
203        $self->{LDDLFLAGS} .= " $libpath";
204    }
205
206    return 1;
207}
208
209
210=item init_platform (o)
211
212Add MM_Win32_VERSION.
213
214=item platform_constants (o)
215
216=cut
217
218sub init_platform {
219    my($self) = shift;
220
221    $self->{MM_Win32_VERSION} = $VERSION;
222}
223
224sub platform_constants {
225    my($self) = shift;
226    my $make_frag = '';
227
228    foreach my $macro (qw(MM_Win32_VERSION))
229    {
230        next unless defined $self->{$macro};
231        $make_frag .= "$macro = $self->{$macro}\n";
232    }
233
234    return $make_frag;
235}
236
237
238=item special_targets (o)
239
240Add .USESHELL target for dmake.
241
242=cut
243
244sub special_targets {
245    my($self) = @_;
246
247    my $make_frag = $self->SUPER::special_targets;
248
249    $make_frag .= <<'MAKE_FRAG' if $DMAKE;
250.USESHELL :
251MAKE_FRAG
252
253    return $make_frag;
254}
255
256
257=item static_lib (o)
258
259Changes how to run the linker.
260
261The rest is duplicate code from MM_Unix.  Should move the linker code
262to its own method.
263
264=cut
265
266sub static_lib {
267    my($self) = @_;
268    return '' unless $self->has_link_code;
269
270    my(@m);
271    push(@m, <<'END');
272$(INST_STATIC): $(OBJECT) $(MYEXTLIB) $(INST_ARCHAUTODIR)$(DIRFILESEP).exists
273	$(RM_RF) $@
274END
275
276    # If this extension has its own library (eg SDBM_File)
277    # then copy that to $(INST_STATIC) and add $(OBJECT) into it.
278    push @m, <<'MAKE_FRAG' if $self->{MYEXTLIB};
279	$(CP) $(MYEXTLIB) $@
280MAKE_FRAG
281
282    push @m,
283q{	$(AR) }.($BORLAND ? '$@ $(OBJECT:^"+")'
284			  : ($GCC ? '-ru $@ $(OBJECT)'
285			          : '-out:$@ $(OBJECT)')).q{
286	$(CHMOD) $(PERM_RWX) $@
287	$(NOECHO) $(ECHO) "$(EXTRALIBS)" > $(INST_ARCHAUTODIR)\extralibs.ld
288};
289
290    # Old mechanism - still available:
291    push @m, <<'MAKE_FRAG' if $self->{PERL_SRC} && $self->{EXTRALIBS};
292	$(NOECHO) $(ECHO) "$(EXTRALIBS)" >> $(PERL_SRC)\ext.libs
293MAKE_FRAG
294
295    push @m, "\n", $self->dir_target('$(INST_ARCHAUTODIR)');
296    join('', @m);
297}
298
299
300=item dynamic_lib (o)
301
302Complicated stuff for Win32 that I don't understand. :(
303
304=cut
305
306sub dynamic_lib {
307    my($self, %attribs) = @_;
308    return '' unless $self->needs_linking(); #might be because of a subdir
309
310    return '' unless $self->has_link_code;
311
312    my($otherldflags) = $attribs{OTHERLDFLAGS} || ($BORLAND ? 'c0d32.obj': '');
313    my($inst_dynamic_dep) = $attribs{INST_DYNAMIC_DEP} || "";
314    my($ldfrom) = '$(LDFROM)';
315    my(@m);
316
317# one thing for GCC/Mingw32:
318# we try to overcome non-relocateable-DLL problems by generating
319#    a (hopefully unique) image-base from the dll's name
320# -- BKS, 10-19-1999
321    if ($GCC) {
322	my $dllname = $self->{BASEEXT} . "." . $self->{DLEXT};
323	$dllname =~ /(....)(.{0,4})/;
324	my $baseaddr = unpack("n", $1 ^ $2);
325	$otherldflags .= sprintf("-Wl,--image-base,0x%x0000 ", $baseaddr);
326    }
327
328    push(@m,'
329# This section creates the dynamically loadable $(INST_DYNAMIC)
330# from $(OBJECT) and possibly $(MYEXTLIB).
331OTHERLDFLAGS = '.$otherldflags.'
332INST_DYNAMIC_DEP = '.$inst_dynamic_dep.'
333
334$(INST_DYNAMIC): $(OBJECT) $(MYEXTLIB) $(BOOTSTRAP) $(INST_ARCHAUTODIR)$(DIRFILESEP).exists $(EXPORT_LIST) $(PERL_ARCHIVE) $(INST_DYNAMIC_DEP)
335');
336    if ($GCC) {
337      push(@m,
338       q{	dlltool --def $(EXPORT_LIST) --output-exp dll.exp
339	$(LD) -o $@ -Wl,--base-file -Wl,dll.base $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) $(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) dll.exp
340	dlltool --def $(EXPORT_LIST) --base-file dll.base --output-exp dll.exp
341	$(LD) -o $@ $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) $(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) dll.exp });
342    } elsif ($BORLAND) {
343      push(@m,
344       q{	$(LD) $(LDDLFLAGS) $(OTHERLDFLAGS) }.$ldfrom.q{,$@,,}
345       .($DMAKE ? q{$(PERL_ARCHIVE:s,/,\,) $(LDLOADLIBS:s,/,\,) }
346		 .q{$(MYEXTLIB:s,/,\,),$(EXPORT_LIST:s,/,\,)}
347		: q{$(subst /,\,$(PERL_ARCHIVE)) $(subst /,\,$(LDLOADLIBS)) }
348		 .q{$(subst /,\,$(MYEXTLIB)),$(subst /,\,$(EXPORT_LIST))})
349       .q{,$(RESFILES)});
350    } else {	# VC
351      push(@m,
352       q{	$(LD) -out:$@ $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) }
353      .q{$(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) -def:$(EXPORT_LIST)});
354    }
355    push @m, '
356	$(CHMOD) $(PERM_RWX) $@
357';
358
359    push @m, $self->dir_target('$(INST_ARCHAUTODIR)');
360    join('',@m);
361}
362
363=item clean
364
365Clean out some extra dll.{base,exp} files which might be generated by
366gcc.  Otherwise, take out all *.pdb files.
367
368=cut
369
370sub clean
371{
372    my ($self) = shift;
373    my $s = $self->SUPER::clean(@_);
374    my $clean = $GCC ? 'dll.base dll.exp' : '*.pdb';
375    $s .= <<END;
376clean ::
377	-\$(RM_F) $clean
378
379END
380    return $s;
381}
382
383=item init_linker
384
385=cut
386
387sub init_linker {
388    my $self = shift;
389
390    $self->{PERL_ARCHIVE}       = "\$(PERL_INC)\\$Config{libperl}";
391    $self->{PERL_ARCHIVE_AFTER} = '';
392    $self->{EXPORT_LIST}        = '$(BASEEXT).def';
393}
394
395
396=item perl_script
397
398Checks for the perl program under several common perl extensions.
399
400=cut
401
402sub perl_script {
403    my($self,$file) = @_;
404    return $file if -r $file && -f _;
405    return "$file.pl"  if -r "$file.pl" && -f _;
406    return "$file.plx" if -r "$file.plx" && -f _;
407    return "$file.bat" if -r "$file.bat" && -f _;
408    return;
409}
410
411
412=item xs_o (o)
413
414This target is stubbed out.  Not sure why.
415
416=cut
417
418sub xs_o {
419    return ''
420}
421
422
423=item pasthru (o)
424
425All we send is -nologo to nmake to prevent it from printing its damned
426banner.
427
428=cut
429
430sub pasthru {
431    my($self) = shift;
432    return "PASTHRU = " . ($NMAKE ? "-nologo" : "");
433}
434
435
436=item oneliner (o)
437
438These are based on what command.com does on Win98.  They may be wrong
439for other Windows shells, I don't know.
440
441=cut
442
443sub oneliner {
444    my($self, $cmd, $switches) = @_;
445    $switches = [] unless defined $switches;
446
447    # Strip leading and trailing newlines
448    $cmd =~ s{^\n+}{};
449    $cmd =~ s{\n+$}{};
450
451    $cmd = $self->quote_literal($cmd);
452    $cmd = $self->escape_newlines($cmd);
453
454    $switches = join ' ', @$switches;
455
456    return qq{\$(PERLRUN) $switches -e $cmd};
457}
458
459
460sub quote_literal {
461    my($self, $text) = @_;
462
463    # I don't know if this is correct, but it seems to work on
464    # Win98's command.com
465    $text =~ s{"}{\\"}g;
466
467    # dmake eats '{' inside double quotes and leaves alone { outside double
468    # quotes; however it transforms {{ into { either inside and outside double
469    # quotes.  It also translates }} into }.  The escaping below is not
470    # 100% correct.
471    if( $DMAKE ) {
472        $text =~ s/{/{{/g;
473        $text =~ s/}}/}}}/g;
474    }
475
476    return qq{"$text"};
477}
478
479
480sub escape_newlines {
481    my($self, $text) = @_;
482
483    # Escape newlines
484    $text =~ s{\n}{\\\n}g;
485
486    return $text;
487}
488
489
490=item max_exec_len
491
492nmake 1.50 limits command length to 2048 characters.
493
494=cut
495
496sub max_exec_len {
497    my $self = shift;
498
499    return $self->{_MAX_EXEC_LEN} ||= 2 * 1024;
500}
501
502
503=item os_flavor
504
505Windows is Win32.
506
507=cut
508
509sub os_flavor {
510    return('Win32');
511}
512
513
5141;
515__END__
516
517=back
518
519=cut 
520
521
522