[Bug c++/11404] New: same mangled name when compiling CGAL-2.4

["decoret at graphics dot lcs dot mit dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11404

           Summary: same mangled name when compiling CGAL-2.4
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: decoret at graphics dot lcs dot mit dot edu
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

When trying to use the CGAL 2.4 library, the compilation ends with the following
message:

/opt/CGAL-2.4/include/CGAL/Triangulation_line_face_circulator_2.h:123: error:
due to a defect in the G++ 3.2 ABI, G++ has assigned the same mangled name to
two different types.

To reproduce the bug requires to install CGAL 2.4 (www.cgal.org) in
/opt/CGAL-2.4/ and compile the following dummy main.C

#include <CGAL/Triangulation_2.h>

int main()
{
  return 0;
}

with:

g++ -c -pipe -O2 \
-D_REENTRANT  \
-DCGAL_NO_PRECONDITIONS -DCGAL_NO_POSTCONDITIONS -DCGAL_NO_ASSERTIONS \
-I/opt/CGAL-2.4/include\
-I/opt/CGAL-2.4/include/CGAL/config/i686_Linux-2.4.20-13.8_g++-3.3.0 \
main.C

the second -I have to be tuned according to the name produced by the CGAL install.