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Re: Error compiling sepgsql in PG9.1

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> 2011/5/21 Devrim GÃNDÃZ <devrim@xxxxxxxxxx>:
> > On Sat, 2011-05-21 at 02:50 +0100, Kohei Kaigai wrote:
> >> As documentation said, it needs libselinux 2.0.93 or higher.
> >> This version supports selabel_lookup(3) for database object classes.
> >
> > AFAICS, we are not checking it during configure. It might be worth to
> > add libselinux version check in the configure phase.
> > --
> 
> So it could be added into the configure the check and I think
> a patch in the doc could complete this issue. That's rigth?
>
Correct.

Now, configure script checks existence of libselinux using AC_CHECK_LIB(),
but getpeercon(3) has been supported for a long time, thus, an older version
of libselinux can also pass this test.

What I want to check here is an existence of SELABEL_CTX_DB definition in
selinux/label.h header file; supported on 2.0.93 or later.

Do you have any good idea to check existence of a particular definition in
a particular header file.

-- in selinux/label.h
  /*
   * Available backends.
   */
  
  /* file contexts */
  #define SELABEL_CTX_FILE        0
  /* media contexts */
  #define SELABEL_CTX_MEDIA       1
  /* x contexts */
  #define SELABEL_CTX_X           2
  /* db objects */
  #define SELABEL_CTX_DB          3  <-- not exist libselinux older than 2.0.93

Thanks,
--
NEC Europe Ltd, SAP Global Competence Center
KaiGai Kohei <kohei.kaigai@xxxxxxxxxxxx>


> -----Original Message-----
> From: Emanuel Calvo [mailto:postgres.arg@xxxxxxxxx]
> Sent: 24. Mai 2011 12:30
> To: Devrim GÃNDÃZ
> Cc: Kohei Kaigai; postgresql Forums; KaiGai Kohei
> Subject: Re:  Error compiling sepgsql in PG9.1
> 
> 2011/5/21 Devrim GÃNDÃZ <devrim@xxxxxxxxxx>:
> > On Sat, 2011-05-21 at 02:50 +0100, Kohei Kaigai wrote:
> >> As documentation said, it needs libselinux 2.0.93 or higher.
> >> This version supports selabel_lookup(3) for database object classes.
> >
> > AFAICS, we are not checking it during configure. It might be worth to
> > add libselinux version check in the configure phase.
> > --
> 
> So it could be added into the configure the check and I think
> a patch in the doc could complete this issue. That's rigth?
> 
> 
> 
> --
> --
> Â Â Â Â Â Â Â Emanuel Calvo
> Â Â Â Â Â Â Â Helpame.com

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