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

       xsubpp - compiler to convert Perl XS code into C code

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

       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.


       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.

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

	    Adds exception handling stubs to the C code.

       -typemap typemap
	    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.

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

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

	    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.

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

	    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.

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

	    Disable recognition of ANSI-like descriptions of function signature.

       No environment variables are used.

       Larry Wall

       See the file changes.pod.

       perl(1), perlxs(1), perlxstut(1)

perl v5.8.0				    2003-02-18					XSUBPP(1)
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