[Libguestfs] [PATCH 0/3] hivex: Improve OS X support

[Richard W.M. Jones]

On Mon, Sep 05, 2011 at 06:52:43PM -0700, Alex Nelson wrote:
> This patch series improves, but does not complete, OS X support for
> hivex.  There are several outstanding issues before hivexml and hivexsh
> can run:
> 
> * hivexsh uses open_memstream, which doesn't exist in OS X as near as I
> can see.  Unfortunately, I'm inexperienced with autoconf, so I'm not
> sure how to employ AC_CHECK_FUNCS([open_memstream]) to conditionally add
> 'sh' to the Makefile.am's SUBDIRS.

You need to use an automake conditional.  It'll be something like this
(not tested):

  AM_CONDITIONAL([HAVE_HIVESH],[test "x$HAVE_OPEN_MEMSTREAM" = "x1"])

and then in Makefile.am:

  if HAVE_HIVESH
  SUBDIRS += sh
  endif

There are plenty of examples of this in the libguestfs source, eg.
have a look at HAVE_PERL in configure.ac and Makefile.am.

> * The check for libxml fails, because PKG_CHECK_CONFIG doesn't exist on
> OS X.  I think it would be better to use AC_CHECK_FUNCS on some of the
> libxml functions, but again, I'm not too hot with autoconf and automake.

Grumble.  OS X sounds a bit broken if it doesn't include pkg-config
files (*.pc).  Is libxml2 provided in the base OS X or is this coming
from an outside project like MacPorts?

> * hivexml has the following run-time failure:
> dyld: lazy symbol binding failed: Symbol not found: _iconv_open
> Referenced from: /Users/alex/local/src/hivex/lib/.libs/libhivex.0.dylib
> Expected in: flat namespace
> 
> dyld: Symbol not found: _iconv_open
> Referenced from: /Users/alex/local/src/hivex/lib/.libs/libhivex.0.dylib
> Expected in: flat namespace
> 
> Trace/BPT trap: 5

Missing libiconv on OS X??  I don't really know about this one.

Rich.

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