package ExtUtils
::MM_Any
;
use vars
qw($VERSION @ISA);
ExtUtils::MM_Any - Platform-agnostic MM methods
package ExtUtils::MM_SomeOS;
# Temporarily, you have to subclass both. Put MM_Any first.
require ExtUtils::MM_Any;
require ExtUtils::MM_Unix;
@ISA = qw(ExtUtils::MM_Any ExtUtils::Unix);
B<FOR INTERNAL USE ONLY!>
ExtUtils::MM_Any is a superclass for the ExtUtils::MM_* set of
modules. It contains methods which are either inherently
cross-platform or are written in a cross-platform manner.
Subclass off of ExtUtils::MM_Any I<and> ExtUtils::MM_Unix. This is a
B<THIS MAY BE TEMPORARY!>
=head1 Inherently Cross-Platform Methods
These are methods which are by their nature cross-platform and should
always be cross-platform.
my @installvars = $mm->installvars;
A list of all the INSTALL* variables without the INSTALL prefix. Useful
for iteration or building related variable sets.
return qw(PRIVLIB SITELIB VENDORLIB
ARCHLIB SITEARCH VENDORARCH
MAN1DIR SITEMAN1DIR VENDORMAN1DIR
MAN3DIR SITEMAN3DIR VENDORMAN3DIR
$mm->os_flavor_is($this_flavor);
$mm->os_flavor_is(@one_of_these_flavors);
Checks to see if the current operating system is one of the given flavors.
This is useful for code like:
if( $mm->os_flavor_is('Unix') ) {
my %flavors = map { ($_ => 1) } $self->os_flavor;
return (grep { $flavors{$_} } @_) ?
1 : 0;
=item dir_targets B<DEPRECATED>
my $make_frag = $mm->dir_target(@directories);
I<This function is deprecated> its use is no longer necessary and is
I<only provided for backwards compatibility>. It is now a no-op.
blibdirs_target provides a much simpler mechanism and pm_to_blib() can
create its own directories anyway.
=item blibdirs_target (o)
my $make_frag = $mm->blibdirs_target;
Creates the blibdirs.ts target which creates all the directories we use in
my @dirs = map { uc "\$(INST_$_)" } qw(libdir archlib
my @mkpath = $self->split_command('$(NOECHO) $(MKPATH)', @dirs);
my @chmod = $self->split_command('$(NOECHO) $(CHMOD) 755', @dirs);
my $make = "\nblibdirs.ts :\n";
$make .= join "", map { "\t$_\n" } @mkpath, @chmod;
=head2 File::Spec wrappers
ExtUtils::MM_Any is a subclass of File::Spec. The methods noted here
File::Spec <= 0.83 has a bug where the file part of catfile is not
canonicalized. This override fixes that bug.
return $self->canonpath($self->SUPER::catfile
(@_));
=head1 Thought To Be Cross-Platform Methods
These are methods which are thought to be cross-platform by virtue of
having been written in a way to avoid incompatibilities. They may
require partial overrides.
my @cmds = $MM->split_command($cmd, @args);
Most OS have a maximum command length they can execute at once. Large
modules can easily generate commands well past that limit. Its
necessary to split long commands up into a series of shorter commands.
split_command() will return a series of @cmds each processing part of
the args. Collectively they will process all the arguments. Each
individual line in @cmds will not be longer than the
$self->max_exec_len being careful to take into account macro expansion.
$cmd should include any switches and repeated initial arguments.
If no @args are given, no @cmds will be returned.
Pairs of arguments will always be preserved in a single command, this
is a heuristic for things like pm_to_blib and pod2man which work on
pairs of arguments. This makes things like this safe:
$self->split_command($cmd, %pod2man);
my($self, $cmd, @args) = @_;
return(@cmds) unless @args;
# If the command was given as a here-doc, there's probably a trailing
# set aside 20% for macro expansion.
my $len_left = int($self->max_exec_len * 0.80);
$len_left -= length $self->_expand_macros($cmd);
while( @next_args = splice(@args, 0, 2) ) {
# Two at a time to preserve pairs.
my $next_arg_str = "\t ". join ' ', @next_args, "\n";
$arg_str .= $next_arg_str
elsif( length($arg_str) + length($next_arg_str) > $len_left ) {
unshift @args, @next_args;
$arg_str .= $next_arg_str;
push @cmds, $self->escape_newlines("$cmd \n$arg_str");
defined $self->{$1} ?
$self->{$1} : "\$($1)"
my @commands = $MM->echo($text);
my @commands = $MM->echo($text, $file);
my @commands = $MM->echo($text, $file, $appending);
Generates a set of @commands which print the $text to a $file.
If $file is not given, output goes to STDOUT.
If $appending is true the $file will be appended to rather than
my($self, $text, $file, $appending) = @_;
my @cmds = map { '$(NOECHO) $(ECHO) '.$self->quote_literal($_) }
my $redirect = $appending ?
'>>' : '>';
$cmds[0] .= " $redirect $file";
$_ .= " >> $file" foreach @cmds[1..$#cmds];
Initialize macros representing versions of MakeMaker and other tools
MAKEMAKER: path to the MakeMaker module.
MM_VERSION: ExtUtils::MakeMaker Version
MM_REVISION: ExtUtils::MakeMaker version control revision (for backwards
VERSION: version of your module
VERSION_MACRO: which macro represents the version (usually 'VERSION')
VERSION_SYM: like version but safe for use as an RCS revision number
DEFINE_VERSION: -D line to set the module version when compiling
XS_VERSION: version in your .xs file. Defaults to $(VERSION)
XS_VERSION_MACRO: which macro represents the XS version.
XS_DEFINE_VERSION: -D line to set the xs version when compiling.
$self->{MAKEMAKER
} = $ExtUtils::MakeMaker
::Filename
;
$self->{MM_VERSION
} = $ExtUtils::MakeMaker
::VERSION
;
$self->{MM_REVISION
}= $ExtUtils::MakeMaker
::Revision
;
$self->{VERSION_FROM
} ||= '';
if ($self->{VERSION_FROM
}){
$self->{VERSION
} = $self->parse_version($self->{VERSION_FROM
});
if( $self->{VERSION
} eq 'undef' ) {
Carp
::carp
("WARNING: Setting VERSION via file ".
"'$self->{VERSION_FROM}' failed\n");
if (defined $self->{VERSION
}) {
$self->{VERSION
} =~ s/^\s+//;
$self->{VERSION
} =~ s/\s+$//;
$self->{VERSION_MACRO
} = 'VERSION';
($self->{VERSION_SYM
} = $self->{VERSION
}) =~ s/\W/_/g;
$self->{DEFINE_VERSION
} = '-D$(VERSION_MACRO)=\"$(VERSION)\"';
# Graham Barr and Paul Marquess had some ideas how to ensure
# version compatibility between the *.pm file and the
# corresponding *.xs file. The bottomline was, that we need an
# XS_VERSION macro that defaults to VERSION:
$self->{XS_VERSION
} ||= $self->{VERSION
};
$self->{XS_VERSION_MACRO
} = 'XS_VERSION';
$self->{XS_DEFINE_VERSION
} = '-D$(XS_VERSION_MACRO)=\"$(XS_VERSION)\"';
Takes an array of items and turns them into a well-formatted list of
arguments. In most cases this is simply something like:
return join " \\\n\t", @_;
Defines targets and routines to translate the pods into manpages and
put them into the INST_* directories.
my $POD2MAN_macro = $self->POD2MAN_macro();
my $manifypods_target = $self->manifypods_target();
my $manifypods_target = $self->manifypods_target;
Generates the manifypods target. This target generates man pages from
all POD files in MAN1PODS and MAN3PODS.
# populate manXpods & dependencies:
foreach my $name (keys %{$self->{MAN1PODS}}, keys %{$self->{MAN3PODS}}) {
$dependencies .= " \\\n\t$name";
foreach my $name (keys %{$self->{MAN3PODS}}) {
$dependencies .= " \\\n\t$name"
manifypods
: pure_all
$dependencies
foreach my $section (qw(1 3)) {
my $pods = $self->{"MAN${section}PODS"};
push @man_cmds, $self->split_command(<<CMD, %$pods);
\$(NOECHO) \$(POD2MAN) --section=$section --perm_rw=\$(PERM_RW)
$manify .= "\t\$(NOECHO) \$(NOOP)\n" unless @man_cmds;
$manify .= join '', map { "$_\n" } @man_cmds;
=item makemakerdflt_target
my $make_frag = $mm->makemakerdflt_target
Returns a make fragment with the makemakerdeflt_target specified.
This target is the first target in the Makefile, is the default target
and simply points off to 'all' just in case any make variant gets
confused or something gets snuck in before the real 'all' target.
sub makemakerdflt_target
{
my $make_frag = $mm->special_targets
Returns a make fragment containing any targets which have special
meaning to make. For example, .SUFFIXES and .PHONY.
my $make_frag = <<'MAKE_FRAG
';
.SUFFIXES: .xs .c .C .cpp .i .s .cxx .cc $(OBJ_EXT)
.PHONY: all config static dynamic test linkext manifest
$make_frag .= <<'MAKE_FRAG' if $ENV{CLEARCASE_ROOT
};
my $pod2man_macro = $self->POD2MAN_macro
Returns a definition for the POD2MAN macro. This is a program
which emulates the pod2man utility. You can add more switches to the
command by simply appending them on the macro.
$(POD2MAN) --section=3 --perm_rw=$(PERM_RW) podfile1 man_page1 ...
# Need the trailing '--' so perl stops gobbling arguments and - happens
# to be an alternative end of line seperator on VMS so we quote it
POD2MAN_EXE = $(PERLRUN) "-MExtUtils::Command::MM" -e pod2man "--"
my $command = $mm->test_via_harness($perl, $tests);
Returns a $command line which runs the given set of $tests with
Test::Harness and the given $perl.
my($self, $perl, $tests) = @_;
return qq{\t$perl "-MExtUtils::Command::MM" }.
qq{"-e" "test_harness(\$(TEST_VERBOSE), '\$(INST_LIB)', '\$(INST_ARCHLIB)')" $tests\n};
my $command = $mm->test_via_script($perl, $script);
Returns a $command line which just runs a single test without
Test::Harness. No checks are done on the results, they're just
Used for test.pl, since they don't always follow Test::Harness
my($self, $perl, $script) = @_;
return qq{\t$perl "-I\$(INST_LIB)" "-I\$(INST_ARCHLIB)" $script\n};
my $wanted = $self->libscan($path);
Takes a path to a file or dir and returns an empty string if we don't
want to include this file in the library. Otherwise it returns the
Mainly used to exclude RCS, CVS, and SCCS directories from
my($dirs,$file) = ($self->splitpath($path))[1,2];
return '' if grep /^(?:RCS|CVS|SCCS|\.svn)$/,
$self->splitdir($dirs), $file;
Defines a simple perl call that runs autosplit. May be deprecated by
my($self, %attribs) = @_;
my $maxlen = $attribs{MAXLEN} ? '$$AutoSplit::Maxlen=$attribs{MAXLEN};'
my $asplit = $self->oneliner(sprintf <<'PERL_CODE', $maxlen);
use AutoSplit; %s autosplit($$ARGV[0], $$ARGV[1], 0, 1, 1)
return sprintf <<'MAKE_FRAG', $asplit;
# Usage: $(AUTOSPLITFILE) FileToSplit AutoDirToSplitInto
Generate the default target 'all'.
my $target = $mm->metafile_target;
Generate the metafile target.
Writes the file META.yml, YAML encoded meta-data about the module. The
format follows Module::Build's as closely as possible. Additionally, we
return <<'MAKE_FRAG' if $self->{NO_META};
foreach my $mod ( sort { lc $a cmp lc $b } keys %{$self->{PREREQ_PM}} ) {
my $ver = $self->{PREREQ_PM}{$mod};
$prereq_pm .= sprintf " %-30s %s\n", "$mod:", $ver;
# http://module-build.sourceforge.net/META-spec.html
#XXXXXXX This is a prototype!!! It will change in the future!!! XXXXX#
version: $self->{VERSION}
version_from: $self->{VERSION_FROM}
installdirs: $self->{INSTALLDIRS}
distribution_type: module
generated_by: ExtUtils::MakeMaker version $ExtUtils::MakeMaker::VERSION
my @write_meta = $self->echo($meta, 'META_new.yml');
my $move = $self->oneliner(<<'CODE', ['-MExtUtils::Command', '-MFile::Compare']);
compare(@ARGV) != 0 ? (mv or warn "Cannot move @ARGV: $$!\n") : unlink(shift);
return sprintf <<'MAKE_FRAG', join("\n\t", @write_meta), $move;
$(NOECHO) $(ECHO) Generating META.yml
-$(NOECHO) %s META_new.yml META.yml
my $target = $mm->signature_target;
Generate the signature target.
Writes the file SIGNATURE with "cpansign -s".
return <<'MAKE_FRAG
' if !$self->{SIGN};
signature
: signature_addtomanifest
=item metafile_addtomanifest_target
my $target = $mm->metafile_addtomanifest_target
Adds the META.yml file to the MANIFEST.
sub metafile_addtomanifest_target
{
return <<'MAKE_FRAG' if $self->{NO_META};
my $add_meta = $self->oneliner(<<'CODE', ['-MExtUtils::Manifest=maniadd']);
eval { maniadd({q{META.yml} => q{Module meta-data (added by MakeMaker)}}) }
or print "Could not add META.yml to MANIFEST: $${'@'}\n"
return sprintf <<'MAKE_FRAG', $add_meta;
$(NOECHO) $(ECHO) Adding META.yml to MANIFEST
=item signature_addtomanifest_target
my $target = $mm->signature_addtomanifest_target
Adds the META.yml file to the MANIFEST.
sub signature_addtomanifest_target {
return <<'MAKE_FRAG
' if !$self->{SIGN};
signature_addtomanifest :
my $add_sign = $self->oneliner(<<'CODE', ['-MExtUtils
::Manifest
=maniadd
']);
eval { maniadd({q{SIGNATURE} => q{Public-key signature (added by MakeMaker)}}) }
or print "Could not add SIGNATURE to MANIFEST: $${'@'}\n"
return sprintf <<'MAKE_FRAG', $add_sign;
signature_addtomanifest :
$(NOECHO) $(ECHO) Adding SIGNATURE to MANIFEST
Methods which cannot be made cross-platform and each subclass will
have to do their own implementation.
my $oneliner = $MM->oneliner($perl_code);
my $oneliner = $MM->oneliner($perl_code, \@switches);
This will generate a perl one-liner safe for the particular platform
you're on based on the given $perl_code and @switches (a -e is
assumed) suitable for using in a make target. It will use the proper
shell quoting and escapes.
$(PERLRUN) will be used as perl.
Any newlines in $perl_code will be escaped. Leading and trailing
newlines will be stripped. Makes this idiom much easier:
my $code = $MM->oneliner(<<'CODE', [...switches...]);
Usage might be something like
:
$oneliner = $MM->oneliner('print "Foo\n"');
$make = '$oneliner > somefile';
All dollar signs must be doubled
in the
$perl_code if you expect them
to be interpreted normally
, otherwise it will be considered a make
macro
. Also remember to quote make macros
else it might be used as a
# Assign the value of the $(VERSION_FROM) make macro to $vf.
$oneliner = $MM->oneliner('$$vf = "$(VERSION_FROM)"');
Its currently very simple
and may be expanded sometime
in the figure
to include more flexible code
and switches
.
my $safe_text = $MM->quote_literal($text);
This will quote $text so it is interpreted literally in the shell.
For example, on Unix this would escape any single-quotes in $text and
put single-quotes around the whole thing.
my $escaped_text = $MM->escape_newlines($text);
Shell escapes newlines in $text.
my $max_exec_len = $MM->max_exec_len;
Calculates the maximum command size the OS can exec. Effectively,
this is the max size of a shell command line.
$self->{_MAX_EXEC_LEN} is set by this method, but only for testing purposes.
Initializes the macro definitions used by tools_other() and places them
If there is no description, its the same as the parameter to
WriteMakefile() documented in ExtUtils::MakeMaker.
Defines at least these macros.
NOECHO Tell make not to display the command itself
MAKE_APERL_FILE File used by MAKE_APERL
SHELL Program used to run
ECHO Print text adding a newline on the end
TOUCH Update a file's timestamp
TEST_F Test for a file's existence
CHMOD Change permissions on a
DEV_NULL Supress all command output
my $dirfilesep = $MM->{DIRFILESEP};
Initializes the DIRFILESEP macro which is the seperator between the
directory and filename in a filepath. ie. / on Unix, \ on Win32 and
# instead of $(INST_ARCHAUTODIR)/extralibs.ld
$(INST_ARCHAUTODIR)$(DIRFILESEP)extralibs.ld
Something of a hack but it prevents a lot of code duplication between
Do not use this as a seperator between directories. Some operating
systems use different seperators between subdirectories as between
directories and filenames (for example: VOLUME:[dir1.dir2]file on VMS).
Initialize macros which have to do with linking.
PERL_ARCHIVE: path to libperl.a equivalent to be linked to dynamic
PERL_ARCHIVE_AFTER: path to a library which should be put on the
linker command line I<after> the external libraries to be linked to
dynamic extensions. This may be needed if the linker is one-pass, and
Perl includes some overrides for C RTL functions, such as malloc().
EXPORT_LIST: name of a file that is passed to linker to define symbols
Some OSes do not need these in which case leave it blank.
Initialize any macros which are for platform specific use only.
A typical one is the version number of your OS specific mocule.
(ie. MM_Unix_VERSION or MM_VMS_VERSION).
my $make_frag = $mm->platform_constants
Returns a make fragment defining all the macros initialized in
init_platform() rather than put them in constants().
my @os_flavor = $mm->os_flavor;
@os_flavor is the style of operating system this is, usually
corresponding to the MM_*.pm file we're using.
The first element of @os_flavor is the major family (ie. Unix,
Windows, VMS, OS/2, etc...) and the rest are sub families.
Cygwin98 ('Unix', 'Cygwin', 'Cygwin9x')
Windows NT ('Win32', 'WinNT')
MacOS X ('Unix', 'Darwin', 'MacOS', 'MacOS X')
This is used to write code for styles of operating system.
See os_flavor_is() for use.
Michael G Schwern <schwern@pobox.com> and the denizens of
makemaker@perl.org with code from ExtUtils::MM_Unix and