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