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.TH H2PH 1 "2007-06-19" "perl v5.8.8" "Perl Programmers Reference Guide"
h2ph \- convert .h C header files to .ph Perl header files
\&\fBh2ph [\-d destination directory] [\-r | \-a] [\-l] [headerfiles]\fR
converts any C header files specified to the corresponding Perl header file
It is most easily run while in /usr/include:
\& cd /usr/include; h2ph * sys/*
\& cd /usr/include; h2ph * sys/* arpa/* netinet/*
\& 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 \fB\-d\fR switch.
If run with no arguments, filters standard input to standard output.
.IP "\-d destination_dir" 4
.IX Item "-d destination_dir"
Put the resulting \fB.ph\fR files beneath \fBdestination_dir\fR, instead of
beneath the default Perl library location (\f(CW$Config{'installsitsearch'}\fR).
Run recursively; if any of \fBheaderfiles\fR are directories, then run \fIh2ph\fR
on all files in those directories (and their subdirectories, etc.). \fB\-r\fR
and \fB\-a\fR are mutually exclusive.
Run automagically; convert \fBheaderfiles\fR, as well as any \fB.h\fR files
which they include. This option will search for \fB.h\fR files in all
directories which your C compiler ordinarily uses. \fB\-a\fR and \fB\-r\fR are
Symbolic links will be replicated in the destination directory. If \fB\-l\fR
is not specified, then links are skipped over.
Put ``hints'' in the .ph files which will help in locating problems with
\&\fIh2ph\fR. In those cases when you \fBrequire\fR a \fB.ph\fR 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 \fB.ph\fR files almost double in size when built using \fB\-h\fR.
Include the code from the \fB.h\fR file as a comment in the \fB.ph\fR file.
This is primarily used for debugging \fIh2ph\fR.
``Quiet'' mode; don't print out the names of the files being converted.
No environment variables are used.
The usual warnings if it can't read or write the files involved.
Doesn't construct the \f(CW%sizeof\fR 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
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
Doesn't handle complicated expressions built piecemeal, a la:
Doesn't necessarily locate all of your C compiler's internally-defined
projects / OpenSPARC-T2-SAM / blob