Man page - h2ph(1)

Packages contains this manual

Package:  perl
apt-get install perl

Manuals in package:
• perlthanks(1)
• prove(1)
• pl2pm(1)
• pod2html(1)
• ptardiff(1)
• piconv(1)
• ptar(1)
• encguess(1)
• splain(1)
• xsubpp(1)
• json_pp(1)
• shasum(1)
• podchecker(1)
• cpan(1)
• pod2man(1)
• enc2xs(1)
• pod2usage(1)
• ptargrep(1)
• streamzip(1)
• instmodsh(1)
• zipdetails(1)
• h2ph(1)
• pod2text(1)
• libnetcfg(1)
• perlbug(1)
• perlivp(1)
• corelist(1)
• h2xs(1)
Documentations in package:
• perl

Manual

H2PH

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
ENVIRONMENT
FILES
AUTHOR
SEE ALSO
DIAGNOSTICS
BUGS

---

NAME

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

SYNOPSIS

h2ph [-d destination directory] [-r | -a] [-l] [-h] [-e] [-D] [-Q] [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{'installsitearch'}).

	-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 .

	-e		If an error is encountered during conversion, output file will be removed and a warning emitted instead of terminating the conversion immediately.
	-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.

---