ExtUtils::Mksymlists(3) - phpMan

ExtUtils::Mksymlists(3)        User Contributed Perl Documentation        ExtUtils::Mksymlists(3)



NAME
       ExtUtils::Mksymlists - write linker options files for dynamic extension

SYNOPSIS
           use ExtUtils::Mksymlists;
           Mksymlists(  NAME     => $name ,
                        DL_VARS  => [ $var1, $var2, $var3 ],
                        DL_FUNCS => { $pkg1 => [ $func1, $func2 ],
                                      $pkg2 => [ $func3 ] );

DESCRIPTION
       "ExtUtils::Mksymlists" produces files used by the linker under some OSs during the
       creation of shared libraries for dynamic extensions.  It is normally called from a
       MakeMaker-generated Makefile when the extension is built.  The linker option file is
       generated by calling the function "Mksymlists", which is exported by default from
       "ExtUtils::Mksymlists".  It takes one argument, a list of key-value pairs, in which the
       following keys are recognized:

       DLBASE
           This item specifies the name by which the linker knows the extension, which may be
           different from the name of the extension itself (for instance, some linkers add an '_'
           to the name of the extension).  If it is not specified, it is derived from the NAME
           attribute.  It is presently used only by OS2 and Win32.

       DL_FUNCS
           This is identical to the DL_FUNCS attribute available via MakeMaker, from which it is
           usually taken.  Its value is a reference to an associative array, in which each key is
           the name of a package, and each value is an a reference to an array of function names
           which should be exported by the extension.  For instance, one might say "DL_FUNCS => {
           Homer::Iliad => [ qw(trojans greeks) ], Homer::Odyssey => [ qw(travellers family
           suitors) ] }".  The function names should be identical to those in the XSUB code;
           "Mksymlists" will alter the names written to the linker option file to match the
           changes made by xsubpp.  In addition, if none of the functions in a list begin with
           the string boot_, "Mksymlists" will add a bootstrap function for that package, just as
           xsubpp does.  (If a boot_<pkg> function is present in the list, it is passed through
           unchanged.)  If DL_FUNCS is not specified, it defaults to the bootstrap function for
           the extension specified in NAME.

       DL_VARS
           This is identical to the DL_VARS attribute available via MakeMaker, and, like
           DL_FUNCS, it is usually specified via MakeMaker.  Its value is a reference to an array
           of variable names which should be exported by the extension.

       FILE
           This key can be used to specify the name of the linker option file (minus the OS-
           specific extension), if for some reason you do not want to use the default value,
           which is the last word of the NAME attribute (e.g. for "Tk::Canvas", FILE defaults to
           "Canvas").

       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.
           Specifying a value for the FUNCLIST attribute suppresses automatic generation of the
           bootstrap function for the package. To still create the bootstrap name you have to
           specify the package name in the DL_FUNCS hash:

               Mksymlists(  NAME     => $name ,
                            FUNCLIST => [ $func1, $func2 ],
                            DL_FUNCS => { $pkg => [] } );

       IMPORTS
           This attribute is used to specify names to be imported into the extension. It is
           currently only used by OS/2 and Win32.

       NAME
           This gives the name of the extension (e.g. "Tk::Canvas") for which the linker option
           file will be produced.

       When calling "Mksymlists", one should always specify the NAME attribute.  In most cases,
       this is all that's necessary.  In the case of unusual extensions, however, the other
       attributes can be used to provide additional information to the linker.

AUTHOR
       Charles Bailey <bailey AT newman.edu>

REVISION
       Last revised 14-Feb-1996, for Perl 5.002.



perl v5.16.3                                2013-06-14                    ExtUtils::Mksymlists(3)

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