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ExtUtils::MakeMaker(3pmPerl Programmers Reference GuidExtUtils::MakeMaker(3pm)

NAME
       ExtUtils::MakeMaker - Create a module Makefile

SYNOPSIS
         use ExtUtils::MakeMaker;

         WriteMakefile( ATTRIBUTE => VALUE [, ...] );

DESCRIPTION
       This utility is designed to write a Makefile for an extension module
       from a Makefile.PL. It is based on the Makefile.SH model provided by
       Andy Dougherty and the perl5-porters.

       It splits the task of generating the Makefile into several subroutines
       that can be individually overridden.  Each subroutine returns the text
       it wishes to have written to the Makefile.

       MakeMaker is object oriented. Each directory below the current
       directory that contains a Makefile.PL is treated as a separate object.
       This makes it possible to write an unlimited number of Makefiles with a
       single invocation of WriteMakefile().

   How To Write A Makefile.PL
       See ExtUtils::MakeMaker::Tutorial.

       The long answer is the rest of the manpage :-)

   Default Makefile Behaviour
       The generated Makefile enables the user of the extension to invoke

         perl Makefile.PL # optionally "perl Makefile.PL verbose"
         make
         make test        # optionally set TEST_VERBOSE=1
         make install     # See below

       The Makefile to be produced may be altered by adding arguments of the
       form "KEY=VALUE". E.g.

         perl Makefile.PL INSTALL_BASE=~

       Other interesting targets in the generated Makefile are

         make config     # to check if the Makefile is up-to-date
         make clean      # delete local temp files (Makefile gets renamed)
         make realclean  # delete derived files (including ./blib)
         make ci         # check in all the files in the MANIFEST file
         make dist       # see below the Distribution Support section

   make test
       MakeMaker checks for the existence of a file named test.pl in the
       current directory and if it exists it execute the script with the
       proper set of perl "-I" options.

       MakeMaker also checks for any files matching glob("t/*.t"). It will
       execute all matching files in alphabetical order via the Test::Harness
       module with the "-I" switches set correctly.

       If you'd like to see the raw output of your tests, set the
       "TEST_VERBOSE" variable to true.

         make test TEST_VERBOSE=1

   make testdb
       A useful variation of the above is the target "testdb". It runs the
       test under the Perl debugger (see perldebug). If the file test.pl
       exists in the current directory, it is used for the test.

       If you want to debug some other testfile, set the "TEST_FILE" variable
       thusly:

         make testdb TEST_FILE=t/mytest.t

       By default the debugger is called using "-d" option to perl. If you
       want to specify some other option, set the "TESTDB_SW" variable:

         make testdb TESTDB_SW=-Dx

   make install
       make alone puts all relevant files into directories that are named by
       the macros INST_LIB, INST_ARCHLIB, INST_SCRIPT, INST_MAN1DIR and
       INST_MAN3DIR.  All these default to something below ./blib if you are
       not building below the perl source directory. If you are building below
       the perl source, INST_LIB and INST_ARCHLIB default to ../../lib, and
       INST_SCRIPT is not defined.

       The install target of the generated Makefile copies the files found
       below each of the INST_* directories to their INSTALL* counterparts.
       Which counterparts are chosen depends on the setting of INSTALLDIRS
       according to the following table:

                                        INSTALLDIRS set to
                                  perl        site          vendor

                        PERLPREFIX      SITEPREFIX          VENDORPREFIX
         INST_ARCHLIB   INSTALLARCHLIB  INSTALLSITEARCH     INSTALLVENDORARCH
         INST_LIB       INSTALLPRIVLIB  INSTALLSITELIB      INSTALLVENDORLIB
         INST_BIN       INSTALLBIN      INSTALLSITEBIN      INSTALLVENDORBIN
         INST_SCRIPT    INSTALLSCRIPT   INSTALLSITESCRIPT   INSTALLVENDORSCRIPT
         INST_MAN1DIR   INSTALLMAN1DIR  INSTALLSITEMAN1DIR  INSTALLVENDORMAN1DIR
         INST_MAN3DIR   INSTALLMAN3DIR  INSTALLSITEMAN3DIR  INSTALLVENDORMAN3DIR

       The INSTALL... macros in turn default to their %Config
       ($Config{installprivlib}, $Config{installarchlib}, etc.) counterparts.

       You can check the values of these variables on your system with

           perl '-V:install.*'

       And to check the sequence in which the library directories are searched
       by perl, run

           perl -le 'print join $/, @INC'

       Sometimes older versions of the module you're installing live in other
       directories in @INC.  Because Perl loads the first version of a module
       it finds, not the newest, you might accidentally get one of these older
       versions even after installing a brand new version.  To delete all
       other versions of the module you're installing (not simply older ones)
       set the "UNINST" variable.

           make install UNINST=1

   INSTALL_BASE
       INSTALL_BASE can be passed into Makefile.PL to change where your module
       will be installed.  INSTALL_BASE is more like what everyone else calls
       "prefix" than PREFIX is.

       To have everything installed in your home directory, do the following.

           # Unix users, INSTALL_BASE=~ works fine
           perl Makefile.PL INSTALL_BASE=/path/to/your/home/dir

       Like PREFIX, it sets several INSTALL* attributes at once.  Unlike
       PREFIX it is easy to predict where the module will end up.  The
       installation pattern looks like this:

           INSTALLARCHLIB     INSTALL_BASE/lib/perl5/$Config{archname}
           INSTALLPRIVLIB     INSTALL_BASE/lib/perl5
           INSTALLBIN         INSTALL_BASE/bin
           INSTALLSCRIPT      INSTALL_BASE/bin
           INSTALLMAN1DIR     INSTALL_BASE/man/man1
           INSTALLMAN3DIR     INSTALL_BASE/man/man3

       INSTALL_BASE in MakeMaker and "--install_base" in Module::Build (as of
       0.28) install to the same location.  If you want MakeMaker and
       Module::Build to install to the same location simply set INSTALL_BASE
       and "--install_base" to the same location.

       INSTALL_BASE was added in 6.31.

   PREFIX and LIB attribute
       PREFIX and LIB can be used to set several INSTALL* attributes in one
       go.  Here's an example for installing into your home directory.

           # Unix users, PREFIX=~ works fine
           perl Makefile.PL PREFIX=/path/to/your/home/dir

       This will install all files in the module under your home directory,
       with man pages and libraries going into an appropriate place (usually
       ~/man and ~/lib).  How the exact location is determined is complicated
       and depends on how your Perl was configured.  INSTALL_BASE works more
       like what other build systems call "prefix" than PREFIX and we
       recommend you use that instead.

       Another way to specify many INSTALL directories with a single parameter
       is LIB.

           perl Makefile.PL LIB=~/lib

       This will install the module's architecture-independent files into
       ~/lib, the architecture-dependent files into ~/lib/$archname.

       Note, that in both cases the tilde expansion is done by MakeMaker, not
       by perl by default, nor by make.

       Conflicts between parameters LIB, PREFIX and the various INSTALL*
       arguments are resolved so that:

       o   setting LIB overrides any setting of INSTALLPRIVLIB,
           INSTALLARCHLIB, INSTALLSITELIB, INSTALLSITEARCH (and they are not
           affected by PREFIX);

       o   without LIB, setting PREFIX replaces the initial $Config{prefix}
           part of those INSTALL* arguments, even if the latter are explicitly
           set (but are set to still start with $Config{prefix}).

       If the user has superuser privileges, and is not working on AFS or
       relatives, then the defaults for INSTALLPRIVLIB, INSTALLARCHLIB,
       INSTALLSCRIPT, etc. will be appropriate, and this incantation will be
       the best:

           perl Makefile.PL;
           make;
           make test
           make install

       make install per default writes some documentation of what has been
       done into the file "$(INSTALLARCHLIB)/perllocal.pod". This feature can
       be bypassed by calling make pure_install.

   AFS users
       will have to specify the installation directories as these most
       probably have changed since perl itself has been installed. They will
       have to do this by calling

           perl Makefile.PL INSTALLSITELIB=/afs/here/today \
               INSTALLSCRIPT=/afs/there/now INSTALLMAN3DIR=/afs/for/manpages
           make

       Be careful to repeat this procedure every time you recompile an
       extension, unless you are sure the AFS installation directories are
       still valid.

   Static Linking of a new Perl Binary
       An extension that is built with the above steps is ready to use on
       systems supporting dynamic loading. On systems that do not support
       dynamic loading, any newly created extension has to be linked together
       with the available resources. MakeMaker supports the linking process by
       creating appropriate targets in the Makefile whenever an extension is
       built. You can invoke the corresponding section of the makefile with

           make perl

       That produces a new perl binary in the current directory with all
       extensions linked in that can be found in INST_ARCHLIB, SITELIBEXP, and
       PERL_ARCHLIB. To do that, MakeMaker writes a new Makefile, on UNIX,
       this is called Makefile.aperl (may be system dependent). If you want to
       force the creation of a new perl, it is recommended, that you delete
       this Makefile.aperl, so the directories are searched-through for
       linkable libraries again.

       The binary can be installed into the directory where perl normally
       resides on your machine with

           make inst_perl

       To produce a perl binary with a different name than "perl", either say

           perl Makefile.PL MAP_TARGET=myperl
           make myperl
           make inst_perl

       or say

           perl Makefile.PL
           make myperl MAP_TARGET=myperl
           make inst_perl MAP_TARGET=myperl

       In any case you will be prompted with the correct invocation of the
       "inst_perl" target that installs the new binary into INSTALLBIN.

       make inst_perl per default writes some documentation of what has been
       done into the file "$(INSTALLARCHLIB)/perllocal.pod". This can be
       bypassed by calling make pure_inst_perl.

       Warning: the inst_perl: target will most probably overwrite your
       existing perl binary. Use with care!

       Sometimes you might want to build a statically linked perl although
       your system supports dynamic loading. In this case you may explicitly
       set the linktype with the invocation of the Makefile.PL or make:

           perl Makefile.PL LINKTYPE=static    # recommended

       or

           make LINKTYPE=static                # works on most systems

   Determination of Perl Library and Installation Locations
       MakeMaker needs to know, or to guess, where certain things are located.
       Especially INST_LIB and INST_ARCHLIB (where to put the files during the
       make(1) run), PERL_LIB and PERL_ARCHLIB (where to read existing modules
       from), and PERL_INC (header files and "libperl*.*").

       Extensions may be built either using the contents of the perl source
       directory tree or from the installed perl library. The recommended way
       is to build extensions after you have run 'make install' on perl
       itself. You can do that in any directory on your hard disk that is not
       below the perl source tree. The support for extensions below the ext
       directory of the perl distribution is only good for the standard
       extensions that come with perl.

       If an extension is being built below the "ext/" directory of the perl
       source then MakeMaker will set PERL_SRC automatically (e.g., "../..").
       If PERL_SRC is defined and the extension is recognized as a standard
       extension, then other variables default to the following:

         PERL_INC     = PERL_SRC
         PERL_LIB     = PERL_SRC/lib
         PERL_ARCHLIB = PERL_SRC/lib
         INST_LIB     = PERL_LIB
         INST_ARCHLIB = PERL_ARCHLIB

       If an extension is being built away from the perl source then MakeMaker
       will leave PERL_SRC undefined and default to using the installed copy
       of the perl library. The other variables default to the following:

         PERL_INC     = $archlibexp/CORE
         PERL_LIB     = $privlibexp
         PERL_ARCHLIB = $archlibexp
         INST_LIB     = ./blib/lib
         INST_ARCHLIB = ./blib/arch

       If perl has not yet been installed then PERL_SRC can be defined on the
       command line as shown in the previous section.

   Which architecture dependent directory?
       If you don't want to keep the defaults for the INSTALL* macros,
       MakeMaker helps you to minimize the typing needed: the usual
       relationship between INSTALLPRIVLIB and INSTALLARCHLIB is determined by
       Configure at perl compilation time. MakeMaker supports the user who
       sets INSTALLPRIVLIB. If INSTALLPRIVLIB is set, but INSTALLARCHLIB not,
       then MakeMaker defaults the latter to be the same subdirectory of
       INSTALLPRIVLIB as Configure decided for the counterparts in %Config ,
       otherwise it defaults to INSTALLPRIVLIB. The same relationship holds
       for INSTALLSITELIB and INSTALLSITEARCH.

       MakeMaker gives you much more freedom than needed to configure internal
       variables and get different results. It is worth to mention, that
       make(1) also lets you configure most of the variables that are used in
       the Makefile. But in the majority of situations this will not be
       necessary, and should only be done if the author of a package
       recommends it (or you know what you're doing).

   Using Attributes and Parameters
       The following attributes may be specified as arguments to
       WriteMakefile() or as NAME=VALUE pairs on the command line.

       ABSTRACT
         One line description of the module. Will be included in PPD file.

       ABSTRACT_FROM
         Name of the file that contains the package description. MakeMaker
         looks for a line in the POD matching /^($package\s-\s)(.*)/. This is
         typically the first line in the "=head1 NAME" section. $2 becomes the
         abstract.

       AUTHOR
         String containing name (and email address) of package author(s). Is
         used in PPD (Perl Package Description) files for PPM (Perl Package
         Manager).

       BINARY_LOCATION
         Used when creating PPD files for binary packages.  It can be set to a
         full or relative path or URL to the binary archive for a particular
         architecture.  For example:

                 perl Makefile.PL BINARY_LOCATION=x86/Agent.tar.gz

         builds a PPD package that references a binary of the "Agent" package,
         located in the "x86" directory relative to the PPD itself.

       BUILD_REQUIRES
         A hash of modules that are needed to build your module but not run
         it.

         This will go into the "build_requires" field of your META.yml.

         The format is the same as PREREQ_PM.

       C Ref to array of *.c file names. Initialised from a directory scan and
         the values portion of the XS attribute hash. This is not currently
         used by MakeMaker but may be handy in Makefile.PLs.

       CCFLAGS
         String that will be included in the compiler call command line
         between the arguments INC and OPTIMIZE.

       CONFIG
         Arrayref. E.g. [qw(archname manext)] defines ARCHNAME & MANEXT from
         config.sh. MakeMaker will add to CONFIG the following values anyway:
         ar cc cccdlflags ccdlflags dlext dlsrc ld lddlflags ldflags libc
         lib_ext obj_ext ranlib sitelibexp sitearchexp so

       CONFIGURE
         CODE reference. The subroutine should return a hash reference. The
         hash may contain further attributes, e.g. {LIBS => ...}, that have to
         be determined by some evaluation method.

       CONFIGURE_REQUIRES
         A hash of modules that are required to run Makefile.PL itself, but
         not to run your distribution.

         This will go into the "configure_requires" field of your META.yml.

         Defaults to "{ "ExtUtils::MakeMaker" => 0 }"

         The format is the same as PREREQ_PM.

       DEFINE
         Something like "-DHAVE_UNISTD_H"

       DESTDIR
         This is the root directory into which the code will be installed.  It
         prepends itself to the normal prefix.  For example, if your code
         would normally go into /usr/local/lib/perl you could set
         DESTDIR=~/tmp/ and installation would go into
         ~/tmp/usr/local/lib/perl.

         This is primarily of use for people who repackage Perl modules.

         NOTE: Due to the nature of make, it is important that you put the
         trailing slash on your DESTDIR.  ~/tmp/ not ~/tmp.

       DIR
         Ref to array of subdirectories containing Makefile.PLs e.g. ['sdbm']
         in ext/SDBM_File

       DISTNAME
         A safe filename for the package.

         Defaults to NAME above but with :: replaced with -.

         For example, Foo::Bar becomes Foo-Bar.

       DISTVNAME
         Your name for distributing the package with the version number
         included.  This is used by 'make dist' to name the resulting archive
         file.

         Defaults to DISTNAME-VERSION.

         For example, version 1.04 of Foo::Bar becomes Foo-Bar-1.04.

         On some OS's where . has special meaning VERSION_SYM may be used in
         place of VERSION.

       DL_FUNCS
         Hashref of symbol names for routines to be made available as
         universal symbols.  Each key/value pair consists of the package name
         and an array of routine names in that package.  Used only under AIX,
         OS/2, VMS and Win32 at present.  The routine names supplied will be
         expanded in the same way as XSUB names are expanded by the XS()
         macro.  Defaults to

           {"$(NAME)" => ["boot_$(NAME)" ] }

         e.g.

           {"RPC" => [qw( boot_rpcb rpcb_gettime getnetconfigent )],
            "NetconfigPtr" => [ 'DESTROY'] }

         Please see the ExtUtils::Mksymlists documentation for more
         information about the DL_FUNCS, DL_VARS and FUNCLIST attributes.

       DL_VARS
         Array of symbol names for variables to be made available as universal
         symbols.  Used only under AIX, OS/2, VMS and Win32 at present.
         Defaults to [].  (e.g. [ qw(Foo_version Foo_numstreams Foo_tree ) ])

       EXCLUDE_EXT
         Array of extension names to exclude when doing a static build.  This
         is ignored if INCLUDE_EXT is present.  Consult INCLUDE_EXT for more
         details.  (e.g.  [ qw( Socket POSIX ) ] )

         This attribute may be most useful when specified as a string on the
         command line:  perl Makefile.PL EXCLUDE_EXT='Socket Safe'

       EXE_FILES
         Ref to array of executable files. The files will be copied to the
         INST_SCRIPT directory. Make realclean will delete them from there
         again.

         If your executables start with something like #!perl or
         #!/usr/bin/perl MakeMaker will change this to the path of the perl
         'Makefile.PL' was invoked with so the programs will be sure to run
         properly even if perl is not in /usr/bin/perl.

       FIRST_MAKEFILE
         The name of the Makefile to be produced.  This is used for the second
         Makefile that will be produced for the MAP_TARGET.

         Defaults to 'Makefile' or 'Descrip.MMS' on VMS.

         (Note: we couldn't use MAKEFILE because dmake uses this for something
         else).

       FULLPERL
         Perl binary able to run this extension, load XS modules, etc...

       FULLPERLRUN
         Like PERLRUN, except it uses FULLPERL.

       FULLPERLRUNINST
         Like PERLRUNINST, except it uses FULLPERL.

       FUNCLIST
         This provides an alternate means to specify function names to be
         exported from the extension.  Its value is a reference to an array of
         function names to be exported by the extension.  These names are
         passed through unaltered to the linker options file.

       H Ref to array of *.h file names. Similar to C.

       IMPORTS
         This attribute is used to specify names to be imported into the
         extension. Takes a hash ref.

         It is only used on OS/2 and Win32.

       INC
         Include file dirs eg: "-I/usr/5include -I/path/to/inc"

       INCLUDE_EXT
         Array of extension names to be included when doing a static build.
         MakeMaker will normally build with all of the installed extensions
         when doing a static build, and that is usually the desired behavior.
         If INCLUDE_EXT is present then MakeMaker will build only with those
         extensions which are explicitly mentioned. (e.g.  [ qw( Socket POSIX
         ) ])

         It is not necessary to mention DynaLoader or the current extension
         when filling in INCLUDE_EXT.  If the INCLUDE_EXT is mentioned but is
         empty then only DynaLoader and the current extension will be included
         in the build.

         This attribute may be most useful when specified as a string on the
         command line:  perl Makefile.PL INCLUDE_EXT='POSIX Socket
         Devel::Peek'

       INSTALLARCHLIB
         Used by 'make install', which copies files from INST_ARCHLIB to this
         directory if INSTALLDIRS is set to perl.

       INSTALLBIN
         Directory to install binary files (e.g. tkperl) into if
         INSTALLDIRS=perl.

       INSTALLDIRS
         Determines which of the sets of installation directories to choose:
         perl, site or vendor.  Defaults to site.

       INSTALLMAN1DIR
       INSTALLMAN3DIR
         These directories get the man pages at 'make install' time if
         INSTALLDIRS=perl.  Defaults to $Config{installman*dir}.

         If set to 'none', no man pages will be installed.

       INSTALLPRIVLIB
         Used by 'make install', which copies files from INST_LIB to this
         directory if INSTALLDIRS is set to perl.

         Defaults to $Config{installprivlib}.

       INSTALLSCRIPT
         Used by 'make install' which copies files from INST_SCRIPT to this
         directory if INSTALLDIRS=perl.

       INSTALLSITEARCH
         Used by 'make install', which copies files from INST_ARCHLIB to this
         directory if INSTALLDIRS is set to site (default).

       INSTALLSITEBIN
         Used by 'make install', which copies files from INST_BIN to this
         directory if INSTALLDIRS is set to site (default).

       INSTALLSITELIB
         Used by 'make install', which copies files from INST_LIB to this
         directory if INSTALLDIRS is set to site (default).

       INSTALLSITEMAN1DIR
       INSTALLSITEMAN3DIR
         These directories get the man pages at 'make install' time if
         INSTALLDIRS=site (default).  Defaults to
         $(SITEPREFIX)/man/man$(MAN*EXT).

         If set to 'none', no man pages will be installed.

       INSTALLSITESCRIPT
         Used by 'make install' which copies files from INST_SCRIPT to this
         directory if INSTALLDIRS is set to site (default).

       INSTALLVENDORARCH
         Used by 'make install', which copies files from INST_ARCHLIB to this
         directory if INSTALLDIRS is set to vendor.

       INSTALLVENDORBIN
         Used by 'make install', which copies files from INST_BIN to this
         directory if INSTALLDIRS is set to vendor.

       INSTALLVENDORLIB
         Used by 'make install', which copies files from INST_LIB to this
         directory if INSTALLDIRS is set to vendor.

       INSTALLVENDORMAN1DIR
       INSTALLVENDORMAN3DIR
         These directories get the man pages at 'make install' time if
         INSTALLDIRS=vendor.  Defaults to $(VENDORPREFIX)/man/man$(MAN*EXT).

         If set to 'none', no man pages will be installed.

       INSTALLVENDORSCRIPT
         Used by 'make install' which copies files from INST_SCRIPT to this
         directory if INSTALLDIRS is set to vendor.

       INST_ARCHLIB
         Same as INST_LIB for architecture dependent files.

       INST_BIN
         Directory to put real binary files during 'make'. These will be
         copied to INSTALLBIN during 'make install'

       INST_LIB
         Directory where we put library files of this extension while building
         it.

       INST_MAN1DIR
         Directory to hold the man pages at 'make' time

       INST_MAN3DIR
         Directory to hold the man pages at 'make' time

       INST_SCRIPT
         Directory, where executable files should be installed during 'make'.
         Defaults to "./blib/script", just to have a dummy location during
         testing. make install will copy the files in INST_SCRIPT to
         INSTALLSCRIPT.

       LD
         Program to be used to link libraries for dynamic loading.

         Defaults to $Config{ld}.

       LDDLFLAGS
         Any special flags that might need to be passed to ld to create a
         shared library suitable for dynamic loading.  It is up to the
         makefile to use it.  (See "lddlflags" in Config)

         Defaults to $Config{lddlflags}.

       LDFROM
         Defaults to "$(OBJECT)" and is used in the ld command to specify what
         files to link/load from (also see dynamic_lib below for how to
         specify ld flags)

       LIB
         LIB should only be set at "perl Makefile.PL" time but is allowed as a
         MakeMaker argument. It has the effect of setting both INSTALLPRIVLIB
         and INSTALLSITELIB to that value regardless any explicit setting of
         those arguments (or of PREFIX).  INSTALLARCHLIB and INSTALLSITEARCH
         are set to the corresponding architecture subdirectory.

       LIBPERL_A
         The filename of the perllibrary that will be used together with this
         extension. Defaults to libperl.a.

       LIBS
         An anonymous array of alternative library specifications to be
         searched for (in order) until at least one library is found. E.g.

           'LIBS' => ["-lgdbm", "-ldbm -lfoo", "-L/path -ldbm.nfs"]

         Mind, that any element of the array contains a complete set of
         arguments for the ld command. So do not specify

           'LIBS' => ["-ltcl", "-ltk", "-lX11"]

         See ODBM_File/Makefile.PL for an example, where an array is needed.
         If you specify a scalar as in

           'LIBS' => "-ltcl -ltk -lX11"

         MakeMaker will turn it into an array with one element.

       LICENSE
         The licensing terms of your distribution.  Generally its "perl" for
         the same license as Perl itself.

         See Module::Build::API for the list of options.

         Defaults to "unknown".

       LINKTYPE
         'static' or 'dynamic' (default unless usedl=undef in config.sh).
         Should only be used to force static linking (also see linkext below).

       MAKE
         Variant of make you intend to run the generated Makefile with.  This
         parameter lets Makefile.PL know what make quirks to account for when
         generating the Makefile.

         MakeMaker also honors the MAKE environment variable.  This parameter
         takes precedent.

         Currently the only significant values are 'dmake' and 'nmake' for
         Windows users.

         Defaults to $Config{make}.

       MAKEAPERL
         Boolean which tells MakeMaker, that it should include the rules to
         make a perl. This is handled automatically as a switch by MakeMaker.
         The user normally does not need it.

       MAKEFILE_OLD
         When 'make clean' or similar is run, the $(FIRST_MAKEFILE) will be
         backed up at this location.

         Defaults to $(FIRST_MAKEFILE).old or $(FIRST_MAKEFILE)_old on VMS.

       MAN1PODS
         Hashref of pod-containing files. MakeMaker will default this to all
         EXE_FILES files that include POD directives. The files listed here
         will be converted to man pages and installed as was requested at
         Configure time.

         This hash should map POD files (or scripts containing POD) to the man
         file names under the "blib/man1/" directory, as in the following
         example:

           MAN1PODS            => {
             'doc/command.pod'    => 'blib/man1/command.1',
             'scripts/script.pl'  => 'blib/man1/script.1',
           }

       MAN3PODS
         Hashref that assigns to *.pm and *.pod files the files into which the
         manpages are to be written. MakeMaker parses all *.pod and *.pm files
         for POD directives. Files that contain POD will be the default keys
         of the MAN3PODS hashref. These will then be converted to man pages
         during "make" and will be installed during "make install".

         Example similar to MAN1PODS.

       MAP_TARGET
         If it is intended, that a new perl binary be produced, this variable
         may hold a name for that binary. Defaults to perl

       META_ADD
       META_MERGE
         A hashrefs of items to add to the META.yml.

         They differ in how they behave if they have the same key as the
         default metadata.  META_ADD will override the default value with it's
         own.  META_MERGE will merge its value with the default.

         Unless you want to override the defaults, prefer META_MERGE so as to
         get the advantage of any future defaults.

       MIN_PERL_VERSION
         The minimum required version of Perl for this distribution.

         Either 5.006001 or 5.6.1 format is acceptable.

       MYEXTLIB
         If the extension links to a library that it builds set this to the
         name of the library (see SDBM_File)

       NAME
         Perl module name for this extension (DBD::Oracle). This will default
         to the directory name but should be explicitly defined in the
         Makefile.PL.

       NEEDS_LINKING
         MakeMaker will figure out if an extension contains linkable code
         anywhere down the directory tree, and will set this variable
         accordingly, but you can speed it up a very little bit if you define
         this boolean variable yourself.

       NOECHO
         Command so make does not print the literal commands its running.

         By setting it to an empty string you can generate a Makefile that
         prints all commands. Mainly used in debugging MakeMaker itself.

         Defaults to "@".

       NORECURS
         Boolean.  Attribute to inhibit descending into subdirectories.

       NO_META
         When true, suppresses the generation and addition to the MANIFEST of
         the META.yml module meta-data file during 'make distdir'.

         Defaults to false.

       NO_VC
         In general, any generated Makefile checks for the current version of
         MakeMaker and the version the Makefile was built under. If NO_VC is
         set, the version check is neglected. Do not write this into your
         Makefile.PL, use it interactively instead.

       OBJECT
         List of object files, defaults to '$(BASEEXT)$(OBJ_EXT)', but can be
         a long string containing all object files, e.g. "tkpBind.o
         tkpButton.o tkpCanvas.o"

         (Where BASEEXT is the last component of NAME, and OBJ_EXT is
         $Config{obj_ext}.)

       OPTIMIZE
         Defaults to "-O". Set it to "-g" to turn debugging on. The flag is
         passed to subdirectory makes.

       PERL
         Perl binary for tasks that can be done by miniperl

       PERL_CORE
         Set only when MakeMaker is building the extensions of the Perl core
         distribution.

       PERLMAINCC
         The call to the program that is able to compile perlmain.c. Defaults
         to $(CC).

       PERL_ARCHLIB
         Same as for PERL_LIB, but for architecture dependent files.

         Used only when MakeMaker is building the extensions of the Perl core
         distribution (because normally $(PERL_ARCHLIB) is automatically in
         @INC, and adding it would get in the way of PERL5LIB).

       PERL_LIB
         Directory containing the Perl library to use.

         Used only when MakeMaker is building the extensions of the Perl core
         distribution (because normally $(PERL_LIB) is automatically in @INC,
         and adding it would get in the way of PERL5LIB).

       PERL_MALLOC_OK
         defaults to 0.  Should be set to TRUE if the extension can work with
         the memory allocation routines substituted by the Perl malloc()
         subsystem.  This should be applicable to most extensions with
         exceptions of those

         o   with bugs in memory allocations which are caught by Perl's
             malloc();

         o   which interact with the memory allocator in other ways than via
             malloc(), realloc(), free(), calloc(), sbrk() and brk();

         o   which rely on special alignment which is not provided by Perl's
             malloc().

         NOTE.  Negligence to set this flag in any one of loaded extension
         nullifies many advantages of Perl's malloc(), such as better usage of
         system resources, error detection, memory usage reporting, catchable
         failure of memory allocations, etc.

       PERLPREFIX
         Directory under which core modules are to be installed.

         Defaults to $Config{installprefixexp} falling back to
         $Config{installprefix}, $Config{prefixexp} or $Config{prefix} should
         $Config{installprefixexp} not exist.

         Overridden by PREFIX.

       PERLRUN
         Use this instead of $(PERL) when you wish to run perl.  It will set
         up extra necessary flags for you.

       PERLRUNINST
         Use this instead of $(PERL) when you wish to run perl to work with
         modules.  It will add things like -I$(INST_ARCH) and other necessary
         flags so perl can see the modules you're about to install.

       PERL_SRC
         Directory containing the Perl source code (use of this should be
         avoided, it may be undefined)

       PERM_DIR
         Desired permission for directories. Defaults to 755.

       PERM_RW
         Desired permission for read/writable files. Defaults to 644.

       PERM_RWX
         Desired permission for executable files. Defaults to 755.

       PL_FILES
         MakeMaker can run programs to generate files for you at build time.
         By default any file named *.PL (except Makefile.PL and Build.PL) in
         the top level directory will be assumed to be a Perl program and run
         passing its own basename in as an argument.  For example...

             perl foo.PL foo

         This behavior can be overridden by supplying your own set of files to
         search.  PL_FILES accepts a hash ref, the key being the file to run
         and the value is passed in as the first argument when the PL file is
         run.

             PL_FILES => {'bin/foobar.PL' => 'bin/foobar'}

         Would run bin/foobar.PL like this:

             perl bin/foobar.PL bin/foobar

         If multiple files from one program are desired an array ref can be
         used.

             PL_FILES => {'bin/foobar.PL' => [qw(bin/foobar1 bin/foobar2)]}

         In this case the program will be run multiple times using each target
         file.

             perl bin/foobar.PL bin/foobar1
             perl bin/foobar.PL bin/foobar2

         PL files are normally run after pm_to_blib and include INST_LIB and
         INST_ARCH in its @INC so the just built modules can be accessed...
         unless the PL file is making a module (or anything else in PM) in
         which case it is run before pm_to_blib and does not include INST_LIB
         and INST_ARCH in its @INC.  This apparently odd behavior is there for
         backwards compatibility (and its somewhat DWIM).

       PM
         Hashref of .pm files and *.pl files to be installed.  e.g.

           {'name_of_file.pm' => '$(INST_LIBDIR)/install_as.pm'}

         By default this will include *.pm and *.pl and the files found in the
         PMLIBDIRS directories.  Defining PM in the Makefile.PL will override
         PMLIBDIRS.

       PMLIBDIRS
         Ref to array of subdirectories containing library files.  Defaults to
         [ 'lib', $(BASEEXT) ]. The directories will be scanned and any files
         they contain will be installed in the corresponding location in the
         library.  A libscan() method can be used to alter the behaviour.
         Defining PM in the Makefile.PL will override PMLIBDIRS.

         (Where BASEEXT is the last component of NAME.)

       PM_FILTER
         A filter program, in the traditional Unix sense (input from stdin,
         output to stdout) that is passed on each .pm file during the build
         (in the pm_to_blib() phase).  It is empty by default, meaning no
         filtering is done.

         Great care is necessary when defining the command if quoting needs to
         be done.  For instance, you would need to say:

           {'PM_FILTER' => 'grep -v \\"^\\#\\"'}

         to remove all the leading comments on the fly during the build.  The
         extra \\ are necessary, unfortunately, because this variable is
         interpolated within the context of a Perl program built on the
         command line, and double quotes are what is used with the -e switch
         to build that command line.  The # is escaped for the Makefile, since
         what is going to be generated will then be:

           PM_FILTER = grep -v \"^\#\"

         Without the \\ before the #, we'd have the start of a Makefile
         comment, and the macro would be incorrectly defined.

       POLLUTE
         Release 5.005 grandfathered old global symbol names by providing
         preprocessor macros for extension source compatibility.  As of
         release 5.6, these preprocessor definitions are not available by
         default.  The POLLUTE flag specifies that the old names should still
         be defined:

           perl Makefile.PL POLLUTE=1

         Please inform the module author if this is necessary to successfully
         install a module under 5.6 or later.

       PPM_INSTALL_EXEC
         Name of the executable used to run "PPM_INSTALL_SCRIPT" below. (e.g.
         perl)

       PPM_INSTALL_SCRIPT
         Name of the script that gets executed by the Perl Package Manager
         after the installation of a package.

       PREFIX
         This overrides all the default install locations.  Man pages,
         libraries, scripts, etc...  MakeMaker will try to make an educated
         guess about where to place things under the new PREFIX based on your
         Config defaults.  Failing that, it will fall back to a structure
         which should be sensible for your platform.

         If you specify LIB or any INSTALL* variables they will not be
         effected by the PREFIX.

       PREREQ_FATAL
         Bool. If this parameter is true, failing to have the required modules
         (or the right versions thereof) will be fatal. "perl Makefile.PL"
         will "die" instead of simply informing the user of the missing
         dependencies.

         It is extremely rare to have to use "PREREQ_FATAL". Its use by module
         authors is strongly discouraged and should never be used lightly.
         Module installation tools have ways of resolving umet dependencies
         but to do that they need a Makefile.  Using "PREREQ_FATAL" breaks
         this.  That's bad.

         The only situation where it is appropriate is when you have
         dependencies that are indispensible to actually write a Makefile. For
         example, MakeMaker's Makefile.PL needs File::Spec.  If its not
         available it cannot write the Makefile.

         Note: see Test::Harness for a shortcut for stopping tests early if
         you are missing dependencies and are afraid that users might use your
         module with an incomplete environment.

       PREREQ_PM
         A hash of modules that are needed to run your module.  The keys are
         the module names ie. Test::More, and the minimum version is the
         value. If the required version number is 0 any version will do.

         This will go into the "requires" field of your META.yml.

             PREREQ_PM => {
                 # Require Test::More at least 0.47
                 "Test::More" => "0.47",

                 # Require any version of Acme::Buffy
                 "Acme::Buffy" => 0,
             }

       PREREQ_PRINT
         Bool.  If this parameter is true, the prerequisites will be printed
         to stdout and MakeMaker will exit.  The output format is an evalable
         hash ref.

           $PREREQ_PM = {
                          'A::B' => Vers1,
                          'C::D' => Vers2,
                          ...
                        };

         If a distribution defines a minimal required perl version, this is
         added to the output as an additional line of the form:

           $MIN_PERL_VERSION = '5.008001';

         If BUILD_REQUIRES is not empty, it will be dumped as $BUILD_REQUIRES
         hasref.

       PRINT_PREREQ
         RedHatism for "PREREQ_PRINT".  The output format is different,
         though:

             perl(A::B)>=Vers1 perl(C::D)>=Vers2 ...

         A minimal required perl version, if present, will look like this:

             perl(perl)>=5.008001

       SITEPREFIX
         Like PERLPREFIX, but only for the site install locations.

         Defaults to $Config{siteprefixexp}.  Perls prior to 5.6.0 didn't have
         an explicit siteprefix in the Config.  In those cases
         $Config{installprefix} will be used.

         Overridable by PREFIX

       SIGN
         When true, perform the generation and addition to the MANIFEST of the
         SIGNATURE file in the distdir during 'make distdir', via 'cpansign
         -s'.

         Note that you need to install the Module::Signature module to perform
         this operation.

         Defaults to false.

       SKIP
         Arrayref. E.g. [qw(name1 name2)] skip (do not write) sections of the
         Makefile. Caution! Do not use the SKIP attribute for the negligible
         speedup. It may seriously damage the resulting Makefile. Only use it
         if you really need it.

       TYPEMAPS
         Ref to array of typemap file names.  Use this when the typemaps are
         in some directory other than the current directory or when they are
         not named typemap.  The last typemap in the list takes precedence.  A
         typemap in the current directory has highest precedence, even if it
         isn't listed in TYPEMAPS.  The default system typemap has lowest
         precedence.

       VENDORPREFIX
         Like PERLPREFIX, but only for the vendor install locations.

         Defaults to $Config{vendorprefixexp}.

         Overridable by PREFIX

       VERBINST
         If true, make install will be verbose

       VERSION
         Your version number for distributing the package.  This defaults to
         0.1.

       VERSION_FROM
         Instead of specifying the VERSION in the Makefile.PL you can let
         MakeMaker parse a file to determine the version number. The parsing
         routine requires that the file named by VERSION_FROM contains one
         single line to compute the version number. The first line in the file
         that contains something like a $VERSION assignment or "package Name
         VERSION" will be used. The following lines will be parsed o.k.:

             # Good
             package Foo::Bar 1.23;                      # 1.23
             $VERSION   = '1.00';                        # 1.00
             *VERSION   = \'1.01';                       # 1.01
             ($VERSION) = q$Revision$ =~ /(\d+)/g;       # The digits in $Revision$
             $FOO::VERSION = '1.10';                     # 1.10
             *FOO::VERSION = \'1.11';                    # 1.11

         but these will fail:

             # Bad
             my $VERSION         = '1.01';
             local $VERSION      = '1.02';
             local $FOO::VERSION = '1.30';

         "Version strings" are incompatible should not be used.

             # Bad
             $VERSION = 1.2.3;
             $VERSION = v1.2.3;

         version objects are fine.  As of MakeMaker 6.35 version.pm will be
         automatically loaded, but you must declare the dependency on
         version.pm.  For compatibility with older MakeMaker you should load
         on the same line as $VERSION is declared.

             # All on one line
             use version; our $VERSION = qv(1.2.3);

         (Putting "my" or "local" on the preceding line will work o.k.)

         The file named in VERSION_FROM is not added as a dependency to
         Makefile. This is not really correct, but it would be a major pain
         during development to have to rewrite the Makefile for any smallish
         change in that file. If you want to make sure that the Makefile
         contains the correct VERSION macro after any change of the file, you
         would have to do something like

             depend => { Makefile => '$(VERSION_FROM)' }

         See attribute "depend" below.

       VERSION_SYM
         A sanitized VERSION with . replaced by _.  For places where . has
         special meaning (some filesystems, RCS labels, etc...)

       XS
         Hashref of .xs files. MakeMaker will default this.  e.g.

           {'name_of_file.xs' => 'name_of_file.c'}

         The .c files will automatically be included in the list of files
         deleted by a make clean.

       XSOPT
         String of options to pass to xsubpp.  This might include "-C++" or
         "-extern".  Do not include typemaps here; the TYPEMAP parameter
         exists for that purpose.

       XSPROTOARG
         May be set to an empty string, which is identical to "-prototypes",
         or "-noprototypes". See the xsubpp documentation for details.
         MakeMaker defaults to the empty string.

       XS_VERSION
         Your version number for the .xs file of this package.  This defaults
         to the value of the VERSION attribute.

   Additional lowercase attributes
       can be used to pass parameters to the methods which implement that part
       of the Makefile.  Parameters are specified as a hash ref but are passed
       to the method as a hash.

       clean
           {FILES => "*.xyz foo"}

       depend
           {ANY_TARGET => ANY_DEPENDENCY, ...}

         (ANY_TARGET must not be given a double-colon rule by MakeMaker.)

       dist
           {TARFLAGS => 'cvfF', COMPRESS => 'gzip', SUFFIX => '.gz',
           SHAR => 'shar -m', DIST_CP => 'ln', ZIP => '/bin/zip',
           ZIPFLAGS => '-rl', DIST_DEFAULT => 'private tardist' }

         If you specify COMPRESS, then SUFFIX should also be altered, as it is
         needed to tell make the target file of the compression. Setting
         DIST_CP to ln can be useful, if you need to preserve the timestamps
         on your files. DIST_CP can take the values 'cp', which copies the
         file, 'ln', which links the file, and 'best' which copies symbolic
         links and links the rest. Default is 'best'.

       dynamic_lib
           {ARMAYBE => 'ar', OTHERLDFLAGS => '...', INST_DYNAMIC_DEP => '...'}

       linkext
           {LINKTYPE => 'static', 'dynamic' or ''}

         NB: Extensions that have nothing but *.pm files had to say

           {LINKTYPE => ''}

         with Pre-5.0 MakeMakers. Since version 5.00 of MakeMaker such a line
         can be deleted safely. MakeMaker recognizes when there's nothing to
         be linked.

       macro
           {ANY_MACRO => ANY_VALUE, ...}

       postamble
         Anything put here will be passed to MY::postamble() if you have one.

       realclean
           {FILES => '$(INST_ARCHAUTODIR)/*.xyz'}

       test
           {TESTS => 't/*.t'}

       tool_autosplit
           {MAXLEN => 8}

   Overriding MakeMaker Methods
       If you cannot achieve the desired Makefile behaviour by specifying
       attributes you may define private subroutines in the Makefile.PL.  Each
       subroutine returns the text it wishes to have written to the Makefile.
       To override a section of the Makefile you can either say:

               sub MY::c_o { "new literal text" }

       or you can edit the default by saying something like:

               package MY; # so that "SUPER" works right
               sub c_o {
                   my $inherited = shift->SUPER::c_o(@_);
                   $inherited =~ s/old text/new text/;
                   $inherited;
               }

       If you are running experiments with embedding perl as a library into
       other applications, you might find MakeMaker is not sufficient. You'd
       better have a look at ExtUtils::Embed which is a collection of
       utilities for embedding.

       If you still need a different solution, try to develop another
       subroutine that fits your needs and submit the diffs to
       "makemaker@perl.org"

       For a complete description of all MakeMaker methods see
       ExtUtils::MM_Unix.

       Here is a simple example of how to add a new target to the generated
       Makefile:

           sub MY::postamble {
               return <<'MAKE_FRAG';
           $(MYEXTLIB): sdbm/Makefile
                   cd sdbm && $(MAKE) all

           MAKE_FRAG
           }

   The End Of Cargo Cult Programming
       WriteMakefile() now does some basic sanity checks on its parameters to
       protect against typos and malformatted values.  This means some things
       which happened to work in the past will now throw warnings and possibly
       produce internal errors.

       Some of the most common mistakes:

       "MAN3PODS => ' '"
         This is commonly used to suppress the creation of man pages.
         MAN3PODS takes a hash ref not a string, but the above worked by
         accident in old versions of MakeMaker.

         The correct code is "MAN3PODS => { }".

   Hintsfile support
       MakeMaker.pm uses the architecture specific information from Config.pm.
       In addition it evaluates architecture specific hints files in a
       "hints/" directory. The hints files are expected to be named like their
       counterparts in "PERL_SRC/hints", but with an ".pl" file name extension
       (eg. "next_3_2.pl"). They are simply "eval"ed by MakeMaker within the
       WriteMakefile() subroutine, and can be used to execute commands as well
       as to include special variables. The rules which hintsfile is chosen
       are the same as in Configure.

       The hintsfile is eval()ed immediately after the arguments given to
       WriteMakefile are stuffed into a hash reference $self but before this
       reference becomes blessed. So if you want to do the equivalent to
       override or create an attribute you would say something like

           $self->{LIBS} = ['-ldbm -lucb -lc'];

   Distribution Support
       For authors of extensions MakeMaker provides several Makefile targets.
       Most of the support comes from the ExtUtils::Manifest module, where
       additional documentation can be found.

       make distcheck
           reports which files are below the build directory but not in the
           MANIFEST file and vice versa. (See ExtUtils::Manifest::fullcheck()
           for details)

       make skipcheck
           reports which files are skipped due to the entries in the
           "MANIFEST.SKIP" file (See ExtUtils::Manifest::skipcheck() for
           details)

       make distclean
           does a realclean first and then the distcheck. Note that this is
           not needed to build a new distribution as long as you are sure that
           the MANIFEST file is ok.

       make manifest
           rewrites the MANIFEST file, adding all remaining files found (See
           ExtUtils::Manifest::mkmanifest() for details)

       make distdir
           Copies all the files that are in the MANIFEST file to a newly
           created directory with the name "$(DISTNAME)-$(VERSION)". If that
           directory exists, it will be removed first.

           Additionally, it will create a META.yml module meta-data file in
           the distdir and add this to the distdir's MANIFEST.  You can shut
           this behavior off with the NO_META flag.

       make disttest
           Makes a distdir first, and runs a "perl Makefile.PL", a make, and a
           make test in that directory.

       make tardist
           First does a distdir. Then a command $(PREOP) which defaults to a
           null command, followed by $(TO_UNIX), which defaults to a null
           command under UNIX, and will convert files in distribution
           directory to UNIX format otherwise. Next it runs "tar" on that
           directory into a tarfile and deletes the directory. Finishes with a
           command $(POSTOP) which defaults to a null command.

       make dist
           Defaults to $(DIST_DEFAULT) which in turn defaults to tardist.

       make uutardist
           Runs a tardist first and uuencodes the tarfile.

       make shdist
           First does a distdir. Then a command $(PREOP) which defaults to a
           null command. Next it runs "shar" on that directory into a sharfile
           and deletes the intermediate directory again. Finishes with a
           command $(POSTOP) which defaults to a null command.  Note: For
           shdist to work properly a "shar" program that can handle
           directories is mandatory.

       make zipdist
           First does a distdir. Then a command $(PREOP) which defaults to a
           null command. Runs "$(ZIP) $(ZIPFLAGS)" on that directory into a
           zipfile. Then deletes that directory. Finishes with a command
           $(POSTOP) which defaults to a null command.

       make ci
           Does a $(CI) and a $(RCS_LABEL) on all files in the MANIFEST file.

       Customization of the dist targets can be done by specifying a hash
       reference to the dist attribute of the WriteMakefile call. The
       following parameters are recognized:

           CI           ('ci -u')
           COMPRESS     ('gzip --best')
           POSTOP       ('@ :')
           PREOP        ('@ :')
           TO_UNIX      (depends on the system)
           RCS_LABEL    ('rcs -q -Nv$(VERSION_SYM):')
           SHAR         ('shar')
           SUFFIX       ('.gz')
           TAR          ('tar')
           TARFLAGS     ('cvf')
           ZIP          ('zip')
           ZIPFLAGS     ('-r')

       An example:

           WriteMakefile(
               ...other options...
               dist => {
                   COMPRESS => "bzip2",
                   SUFFIX   => ".bz2"
               }
           );

   Module Meta-Data
       Long plaguing users of MakeMaker based modules has been the problem of
       getting basic information about the module out of the sources without
       running the Makefile.PL and doing a bunch of messy heuristics on the
       resulting Makefile.  To this end a simple module meta-data file has
       been introduced, META.yml.

       META.yml is a YAML document (see http://www.yaml.org) containing basic
       information about the module (name, version, prerequisites...)  in an
       easy to read format.  The format is developed and defined by the
       Module::Build developers (see
       http://module-build.sourceforge.net/META-spec.html)

       MakeMaker will automatically generate a META.yml file for you and add
       it to your MANIFEST as part of the 'distdir' target (and thus the
       'dist' target).  This is intended to seamlessly and rapidly populate
       CPAN with module meta-data.  If you wish to shut this feature off, set
       the "NO_META" "WriteMakefile()" flag to true.

   Disabling an extension
       If some events detected in Makefile.PL imply that there is no way to
       create the Module, but this is a normal state of things, then you can
       create a Makefile which does nothing, but succeeds on all the "usual"
       build targets.  To do so, use

           use ExtUtils::MakeMaker qw(WriteEmptyMakefile);
           WriteEmptyMakefile();

       instead of WriteMakefile().

       This may be useful if other modules expect this module to be built OK,
       as opposed to work OK (say, this system-dependent module builds in a
       subdirectory of some other distribution, or is listed as a dependency
       in a CPAN::Bundle, but the functionality is supported by different
       means on the current architecture).

   Other Handy Functions
       prompt
               my $value = prompt($message);
               my $value = prompt($message, $default);

           The "prompt()" function provides an easy way to request user input
           used to write a makefile.  It displays the $message as a prompt for
           input.  If a $default is provided it will be used as a default.
           The function returns the $value selected by the user.

           If "prompt()" detects that it is not running interactively and
           there is nothing on STDIN or if the PERL_MM_USE_DEFAULT environment
           variable is set to true, the $default will be used without
           prompting.  This prevents automated processes from blocking on user
           input.

           If no $default is provided an empty string will be used instead.

ENVIRONMENT
       PERL_MM_OPT
           Command line options used by "MakeMaker->new()", and thus by
           "WriteMakefile()".  The string is split on whitespace, and the
           result is processed before any actual command line arguments are
           processed.

       PERL_MM_USE_DEFAULT
           If set to a true value then MakeMaker's prompt function will always
           return the default without waiting for user input.

       PERL_CORE
           Same as the PERL_CORE parameter.  The parameter overrides this.

SEE ALSO
       Module::Build is a pure-Perl alternative to MakeMaker which does not
       rely on make or any other external utility.  It is easier to extend to
       suit your needs.

       Module::Install is a wrapper around MakeMaker which adds features not
       normally available.

       ExtUtils::ModuleMaker and Module::Starter are both modules to help you
       setup your distribution.

AUTHORS
       Andy Dougherty "doughera@lafayette.edu", Andreas Koenig
       "andreas.koenig@mind.de", Tim Bunce "timb@cpan.org".  VMS support by
       Charles Bailey "bailey@newman.upenn.edu".  OS/2 support by Ilya
       Zakharevich "ilya@math.ohio-state.edu".

       Currently maintained by Michael G Schwern "schwern@pobox.com"

       Send patches and ideas to "makemaker@perl.org".

       Send bug reports via http://rt.cpan.org/.  Please send your generated
       Makefile along with your report.

       For more up-to-date information, see <http://www.makemaker.org>.

LICENSE
       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.12.1                      2010-05-13          ExtUtils::MakeMaker(3pm)
 

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