CGAL users discussion list

[Giannis Papadopoulos <>]

Actually the problem is the following:

AIX defines hz as a macro in /usr/include/sys/m_param.h which is included by some C++ header and has some arbitrary value (on the systems I tested is 100).

In most cases, hz is prefixed by other letter(s) as a variable name so the substitution does harm anyone.

In Point_3 though it is a function, so it gives all the errors. All one has to do is to add the following

#if defined(__IBMCPP__) || defined(_AIX)
# ifdef hz
#  undef hz
# endif
#endif

in CGAL/Point_3.h just before the namespace declaration. After that CGAL compiles fine.

On Sun, Jun 7, 2009 at 7:54 AM, Sylvain Pion <> wrote:

My suggestion would be that you change all occurences of the word "hz"
to e.g. "hz_" in your own copy of CGAL.

I don't see a reasonable solution to work around this within CGAL.


Shu Ye wrote:

Hi Sylvain,

Thank you for taking a look at it. Do you have any suggestions on how to fix it?

Thanks,
-Shu

--- On *Fri, 6/5/09, Sylvain Pion /<>/* wrote:


   From: Sylvain Pion <>
   Subject: Re: [cgal-discuss] issues of installing CGAL 3.3.1 on IBM
   AIX 5.3
   To:
   Date: Friday, June 5, 2009, 8:26 PM

    </mc/compose?to=> wrote:
    > Hi,
    >  Has anyone successfully installed CGAL on IBM AIX systems?
    >  I am trying to install CGAL 3.3.1 libraries on IBM AIX 5.3
   system recently. The OS is 'powerpc_AIX-3.0, Compiler is GNU 4.1.2.
   The setup has been test OK. When I built CGAL libraries, I got lots
   of compiler errors. I attached two log files if you want to take a
   look at the errors. Thank you in advance.

   /home/shuy/EMS/CGAL-3.3.1/ibmrs1/CGAL-3.3.1/include/CGAL/Point_3.h:145:
   error: '100' cannot be used as a function

   Smeels like some system header is defining a macro like "hz" to 100...


   -- Sylvain Pion
   INRIA Sophia-Antipolis
   Geometrica Project-Team
   CGAL, http://cgal.org/
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--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/

-- 
Ioannis Papadopoulos, Ph.D. Student
Department of Computer Science and Engineering
Texas A&M University