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h2ph (1)
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    NAME

    h2ph - convert .h C header files to .ph Perl header files
     
    

    SYNOPSIS

    h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]  

    DESCRIPTION

    h2ph converts any C header files specified to the corresponding Perl header file format. It is most easily run while in /usr/include:

            cd /usr/include; h2ph * sys/*
    
    

    or

            cd /usr/include; h2ph * sys/* arpa/* netinet/*
    
    

    or

            cd /usr/include; h2ph -r -l .
    
    

    The output files are placed in the hierarchy rooted at Perl's architecture dependent library directory. You can specify a different hierarchy with a -d switch.

    If run with no arguments, filters standard input to standard output.  

    OPTIONS

    -d destination_dir
    Put the resulting .ph files beneath destination_dir, instead of beneath the default Perl library location ($Config{'installsitsearch'}).
    -r
    Run recursively; if any of headerfiles are directories, then run h2ph on all files in those directories (and their subdirectories, etc.). -r and -a are mutually exclusive.
    -a
    Run automagically; convert headerfiles, as well as any .h files which they include. This option will search for .h files in all directories which your C compiler ordinarily uses. -a and -r are mutually exclusive.
    -l
    Symbolic links will be replicated in the destination directory. If -l is not specified, then links are skipped over.
    -h
    Put ``hints'' in the .ph files which will help in locating problems with h2ph. In those cases when you require a .ph file containing syntax errors, instead of the cryptic

            [ some error condition ] at (eval mmm) line nnn
    
    

    you will see the slightly more helpful

            [ some error condition ] at filename.ph line nnn
    
    

    However, the .ph files almost double in size when built using -h.

    -D
    Include the code from the .h file as a comment in the .ph file. This is primarily used for debugging h2ph.
    -Q
    ``Quiet'' mode; don't print out the names of the files being converted.
     

    ENVIRONMENT

    No environment variables are used.  

    FILES

     /usr/include/*.h
     /usr/include/sys/*.h
    
    

    etc.  

    AUTHOR

    Larry Wall  

    SEE ALSO

    perl(1)  

    DIAGNOSTICS

    The usual warnings if it can't read or write the files involved.  

    BUGS

    Doesn't construct the %sizeof array for you.

    It doesn't handle all C constructs, but it does attempt to isolate definitions inside evals so that you can get at the definitions that it can translate.

    It's only intended as a rough tool. You may need to dicker with the files produced.

    You have to run this program by hand; it's not run as part of the Perl installation.

    Doesn't handle complicated expressions built piecemeal, a la:

        enum {
            FIRST_VALUE,
            SECOND_VALUE,
        #ifdef ABC
            THIRD_VALUE
        #endif
        };
    
    

    Doesn't necessarily locate all of your C compiler's internally-defined symbols.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    ENVIRONMENT
    FILES
    AUTHOR
    SEE ALSO
    DIAGNOSTICS
    BUGS


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