MirOS Manual: xsubpp(1)


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

NAME

     xsubpp - compiler to convert Perl XS code into C code

SYNOPSIS

     xsubpp [-v] [-C++] [-csuffix csuffix] [-except] [-s pattern]
     [-prototypes] [-noversioncheck] [-nolinenumbers] [-nooptim-
     ize] [-typemap typemap] ... file.xs

DESCRIPTION

     This compiler is typically run by the makefiles created by
     ExtUtils::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

OPTIONS

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

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

     -csuffix csuffix
          Set the suffix used for the generated C or C++ code.
          Defaults to '.c' (even with -C++), but some platforms
          might want to have e.g. '.cpp'. Don't forget the '.'
          from the front.

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

     -except
          Adds exception handling stubs to the C code.

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

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

perl v5.8.8                2006-06-30                           1

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

     -prototypes
          By default xsubpp will not automatically generate pro-
          totype code for all xsubs. This flag will enable proto-
          types.

     -noversioncheck
          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.

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

     -nooptimize
          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
          xsubpp of 5.005 and earlier operated.

     -noinout
          Disable recognition of "IN", "OUT_LIST" and
          "INOUT_LIST" declarations.

     -noargtypes
          Disable recognition of ANSI-like descriptions of func-
          tion signature.

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 v5.8.8                2006-06-30                           2

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