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] [-nover-
sioncheck] [-nolinenumbers] [-nooptimize] [-typemap typemap] ...
This compiler is typically run by the makefiles created by ExtU-
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
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
Adds exception handling stubs to the C code.
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
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" declara-
Disable recognition of ANSI-like descriptions of function signa-
No environment variables are used.
See the file changes.pod.
perl(1), perlxs(1), perlxstut(1)
perl v5.8.6 2005-12-14 XSUBPP(1)
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