XSUBPP(1) Perl Programmers Reference Guide XSUBPP(1)

NAME
       xsubpp - compiler to convert Perl XS code into C code

SYNOPSIS
       xxssuubbpppp [-vv] [-CC++++] [-eexxcceepptt] [-ss ppaatttteerrnn] [-pprroottoottyyppeess] [-nnoovveerr-
       ssiioonncchheecckk] [-nnoolliinneennuummbbeerrss] [-nnooooppttiimmiizzee] [-ttyyppeemmaapp ttyyppeemmaapp] ...
       file.xs

DESCRIPTION
       This compiler is typically run by the makefiles created by ExtU-
       tils::MakeMaker.

       xsubpp will compile XS code into C code by embedding the constructs
       necessary to let C functions manipulate Perl values and creates the
       glue necessary to let Perl access those functions.  The compiler uses
       typemaps to determine how to map C function parameters and variables to
       Perl values.

       The compiler will search for typemap files called typemap.  It will use
       the following search path to find default typemaps, with the rightmost
       typemap taking precedence.

               ../../../typemap:../../typemap:../typemap:typemap

OOPPTTIIOONNSS
       Note that the "XSOPT" MakeMaker option may be used to add these options
       to any makefiles generated by MakeMaker.

       -CC++++ Adds ``extern "C"'' to the C code.

       -hhiieerrttyyppee
            Retains '::' in type names so that C++ hierachical types can be
            mapped.

       -eexxcceepptt
            Adds exception handling stubs to the C code.

       -ttyyppeemmaapp ttyyppeemmaapp
            Indicates that a user-supplied typemap should take precedence over
            the default typemaps.  This option may be used multiple times,
            with the last typemap having the highest precedence.

       -vv   Prints the xsubpp version number to standard output, then exits.

       -pprroottoottyyppeess
            By default xsubpp will not automatically generate prototype code
            for all xsubs. This flag will enable prototypes.

       -nnoovveerrssiioonncchheecckk
            Disables the run time test that determines if the object file
            (derived from the ".xs" file) and the ".pm" files have the same
            version number.

       -nnoolliinneennuummbbeerrss
            Prevents the inclusion of `#line' directives in the output.

       -nnooooppttiimmiizzee
            Disables certain optimizations.  The only optimization that is
            currently affected is the use of targets by the output C code (see
            perlguts).  This may significantly slow down the generated code,
            but this is the way xxssuubbpppp of 5.005 and earlier operated.

       -nnooiinnoouutt
            Disable recognition of "IN", "OUTLIST" and "INOUTLIST" declara-
            tions.

       -nnooaarrggttyyppeess
            Disable recognition of ANSI-like descriptions of function signa-
            ture.

ENVIRONMENT       No environment variables are used.

AUTHOR       Larry Wall

MODIFICATION HISTORY       See the file changes.pod.

SEE ALSO
       perl(1), perlxs(1), perlxstut(1)



perl v5.8.6                       2009-01-12                         XSUBPP(1)