Re: [Omnetpp-l] omnet with cgal library: compilation problem because ofmacros

["Andras Varga" <andras at xxx>]

Hi Paolo,

Likely some #defines in OMNeT++ conflict with CGAL ones. Can you figure out
which ones?

Andras 


> -----Original Message-----
> From: omnetpp-l-bounces at xxx [mailto:omnetpp-l-bounces at xxx]
> On Behalf Of Paolo Masci
> Sent: Friday, July 18, 2008 2:03 PM
> To: omnetpp-l at xxx
> Subject: [Omnetpp-l] omnet with cgal library: compilation problem because
> ofmacros
> 
> Hi,
> 
> I'm trying to use the cgal library within the omnet network simulator.
> I get lot of compile errors because of macros when including
> cgal headers in my files.
> 
> Here's a partial snapshot of what I get:
> 
> ------
> g++ -c -O2 -DNDEBUG=1   -DWITH_PARSIM -DWITH_NETBUILDER  -
> I/opt/omnetpp/include
> txc1.cc
> In file included from /usr/include/CGAL/gmpxx.h:43,
>                 from /usr/include/CGAL/number_type_basic.h:91,
>                 from /usr/include/CGAL/basic.h:35,
>                 from /usr/include/CGAL/Cartesian/Cartesian_base.h:29,
>                 from /usr/include/CGAL/Cartesian.h:27,
>                 from txc1.cc:7:
> /usr/include/gmpxx.h:3103:62: error: macro "sgn" passed 2 arguments, but
> takes
> just 1
> ------
> 
> 
> I've tried to place #undef sgn in gmpxx.h, but there are still problems
> (maybe because the macro is used somewhere, and I'm undefining it).
> Here's another partial snapshot of the errors:
> 
> ------
> In file included from /usr/include/CGAL/number_type_basic.h:68,
>                 from /usr/include/CGAL/basic.h:35,
>                 from /usr/include/CGAL/Cartesian/Cartesian_base.h:29,
>                 from /usr/include/CGAL/Cartesian.h:27,
>                 from txc1.cc:7:
> /usr/include/CGAL/utils_classes.h:65: error: expected unqualified-id
> before
> '{' token
> /usr/include/CGAL/utils_classes.h:66: error: 'c_' was not declared in this
> scope
> /usr/include/CGAL/utils_classes.h:66: error: a function call cannot appear
> in a
> constant-expression
> /usr/include/CGAL/utils_classes.h:66: error: expected ';' before '{'
> token
> /usr/include/CGAL/utils_classes.h:67: error: expected `;' before 'NT'
> /usr/include/CGAL/utils_classes.h:75: error: expected unqualified-id
> before
> '{' token
> /usr/include/CGAL/utils_classes.h:76: error: 'c_' was not declared in this
> scope
> /usr/include/CGAL/utils_classes.h:76: error: a function call cannot appear
> in a
> constant-expression
> /usr/include/CGAL/utils_classes.h:76: error: expected ';' before '{'
> token
> /usr/include/CGAL/utils_classes.h:77: error: expected `;' before 'NT'
> ------
> 
> 
> I'm working under ubuntu linux, g++ version 4.2.3.
> What am I missing? Is there a way to override this problem?
> 
> Thanks in advance.
> 
> Regards, Paolo
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