CGAL users discussion list

[Sylvain Pion <>]

Alejandro M. Aragón a écrit :
> Hello everyone,
>
> I want to use the CGAL library but there is something really weird. I
> just #include the header file Cartesian.h (nothing else), and then my
> compiler becomes crazy! I'm using Ubuntu Linux with g++
>
> ~$ g++ --version
> g++ (GCC) 4.1.2 (Ubuntu 4.1.2-0ubuntu4)
> Copyright (C) 2006 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is
> NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> PURPOSE.
>
> Is this a bug in the library? How come I cannot even include a header
> file? I took a look at line 37 of /usr/include/CGAL/Straight_2.h and
> there is no '(' token. Does anyone know why is this and if it has a
> fix???
>
> Thank you all,
>
> Alejandro M. Aragón
>
> The output of the compiler is
> make all 
> make  all-recursive
> make[1]: Entering directory `/home/aaragon/workspace/fea'
> Making all in src
> make[2]: Entering directory `/home/aaragon/workspace/fea/src'
> if g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/home/aaragon/lib/include    -g
> -O2 -MT type.o -MD -MP -MF ".deps/type.Tpo" -c -o type.o type.cxx; \
>         then mv -f ".deps/type.Tpo" ".deps/type.Po"; else rm -f
> ".deps/type.Tpo"; exit 1; fi
> if g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/home/aaragon/lib/include    -g
> -O2 -MT element.o -MD -MP -MF ".deps/element.Tpo" -c -o element.o
> element.cxx; \
>         then mv -f ".deps/element.Tpo" ".deps/element.Po"; else rm -f
> ".deps/element.Tpo"; exit 1; fi
> /usr/include/CGAL/Straight_2.h:37: error: expected identifier before ‘(’
> token

Sounds like one of the identifiers on that line is defined as a macro by 
another library from which you were including some header file before
CGAL's.

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