I'm a newbie of CGAL and I'm using CGAL 4.7-4 on Ubuntu 16.04. I'm trying to compile and run a very simple .cpp. Here is the code:
#include <iostream>
#include <CGAL/Cartesian.h>
int main()
{
int p=2;
std::cout << "hello " << p << std::endl;
return 0;
}
I added the line
#include <CGAL/Cartesian.h>
because I want to see how to compile with more libraries. Then I wrote this line on the terminal
g++ -lCGAL -lgmp prova.cpp
but I got this error:
/tmp/cc9DA7Ml.o: In function 'CGAL::Interval_nt::Test_runtime_rounding_modes::Test_runtime_rounding_modes()':
prova.cpp:(.text._ZN4CGAL11Interval_ntILb0EE27Test_runtime_rounding_modesC2Ev[_ZN4CGAL11Interval_ntILb0EE27Test_runtime_rounding_modesC5Ev]+0xd2): undefined reference to 'CGAL::assertion_fail(char const*, char const*, int, char const*)'
prova.cpp:(.text._ZN4CGAL11Interval_ntILb0EE27Test_runtime_rounding_modesC2Ev[_ZN4CGAL11Interval_ntILb0EE27Test_runtime_rounding_modesC5Ev]+0x180): undefined reference to 'CGAL::assertion_fail(char const*, char const*, int, char const*)'
/tmp/cc9DA7Ml.o: In function 'CGAL::Interval_nt::Test_runtime_rounding_modes::Test_runtime_rounding_modes()':
prova.cpp:(.text._ZN4CGAL11Interval_ntILb1EE27Test_runtime_rounding_modesC2Ev[_ZN4CGAL11Interval_ntILb1EE27Test_runtime_rounding_modesC5Ev]+0xd2): undefined reference to 'CGAL::assertion_fail(char const*, char const*, int, char const*)'
prova.cpp:(.text._ZN4CGAL11Interval_ntILb1EE27Test_runtime_rounding_modesC2Ev[_ZN4CGAL11Interval_ntILb1EE27Test_runtime_rounding_modesC5Ev]+0x180): undefined reference to 'CGAL::assertion_fail(char const*, char const*, int, char const*)'
collect2: error: ld returned 1 exit status
I got the same error even if I wrote anyone of these lines:
g++ -lCGAL -lmpfr -lgmp prova.cpp
g++ -I/opt/local/include -L/opt/local/lib -lCGAL -lgmp prova.cpp
g++ -I/opt/local/include -L/opt/local/lib/ -lCGAL -lgmp prova.cpp
g++ -I/usr/include -L/usr/bin -lCGAL -lgmp prova.cpp
g++ -I/usr/bin -L/usr/lib -lCGAL -lgmp prova.cpp
If I wrote
g++ -lCartesian.a -lCGAL -lgmp prova.cpp
or
g++ -lCartesian -lCGAL -lgmp prova.cpp
I got this error on the terminal
/usr/bin/ld: cannot find -lCartesian.a
collect2: error: ld returned 1 exit status
And at the end if I wrote
g++ -I/usr/include/CGAL -L/usr/include/CGAL -lCGAL -lgmp prova.cpp
I got a very long list of errors like these:
In file included from /usr/include/CGAL/gmpxx_coercion_traits.h:35:0,
from /usr/include/CGAL/mpz_class.h:29,
from /usr/include/CGAL/gmpxx.h:47,
from /usr/include/CGAL/is_convertible.h:28,
from /usr/include/CGAL/Rational_traits.h:31,
from /usr/include/CGAL/number_type_basic.h:48,
from /usr/include/CGAL/basic.h:44,
from /usr/include/CGAL/Cartesian/Cartesian_base.h:28,
from /usr/include/CGAL/Cartesian.h:28,
from prova.cpp:2:
/usr/include/mpfr.h:181:3: error: ‘mp_limb_t’ does not name a type mp_limb_t *_mpfr_d;
/usr/include/mpfr.h:279:1: error: ‘__GMP_DECLSPEC’ does not name a type __MPFR_DECLSPEC __gmp_const char * mpfr_get_version _MPFR_PROTO ((void));
[...]
In file included from /usr/include/CGAL/mpz_class.h:29:0,
from /usr/include/CGAL/gmpxx.h:47,
from /usr/include/CGAL/is_convertible.h:28,
from /usr/include/CGAL/Rational_traits.h:31,
from /usr/include/CGAL/number_type_basic.h:48,
from /usr/include/CGAL/basic.h:44,
from /usr/include/CGAL/Cartesian/Cartesian_base.h:28,
from /usr/include/CGAL/Cartesian.h:28,
from prova.cpp:2:
/usr/include/CGAL/gmpxx_coercion_traits.h:43:3: error: ‘::__gmp_expr’ has not been declared
::__gmp_expr< T , U>,::__gmp_expr< T , U> >{
[...]
And the long list finishes like this:
In file included from /usr/include/CGAL/double.h:30:0,
from /usr/include/CGAL/number_type_basic.h:60,
from /usr/include/CGAL/basic.h:44,
from /usr/include/CGAL/Cartesian/Cartesian_base.h:28,
from /usr/include/CGAL/Cartesian.h:28,
from prova.cpp:2:
/usr/include/CGAL/number_utils.h: In instantiation of ‘typename CGAL::Real_embeddable_traits::Is_finite::result_type CGAL::is_finite(const Real_embeddable&) [with Real_embeddable = double; typename CGAL::Real_embeddable_traits::Is_finite::result_type = CGAL::Null_tag]’:
/usr/include/CGAL/double.h:201:27: required from here
/usr/include/CGAL/number_utils.h:263:75: error: no match for call to ‘(CGAL::INTERN_RET::Real_embeddable_traits_base >::Is_finite {aka CGAL::Null_functor}) (const double&)’
return typename Real_embeddable_traits< Real_embeddable >::Is_finite()( x );
I've looked around on the web a lot and I've understand something is wrong with the linking part of the compilation (no problem with the core), but I really don't have any idea about the solution. Do you have any idea? Thanks in advance for helping.
