CGAL users discussion list

[mahdavi <>]

hi all,
I install cgal on linux by instructions in manual cgal ,but I don't run a
simple program by cgal ,I am beginner programmer in linux , when I type
vector_convex_hull_2.cpp in run command ,and follow message  is occur:
 g++  vector_convex_hull_2.cpp
///////////////////////////////////////////////////////////////////////////////////////////////////////////
/tmp/ccj5HHJg.o: In function
`CGAL::Interval_nt<false>::Test_runtime_rounding_mo
des::Test_runtime_rounding_modes()':
vector_convex_hull_2.cpp:(.text._ZN4CGAL11Interval_ntILb0EE27Test_runtime_roundi
ng_modesC1Ev[CGAL::Interval_nt<false>::Test_runtime_rounding_modes::Test_runtime
_rounding_modes()]+0x95): undefined reference to `CGAL::assertion_fail(char
cons
t*, char const*, int, char const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL11Interval_ntILb0EE27Test_runtime_roundi
ng_modesC1Ev[CGAL::Interval_nt<false>::Test_runtime_rounding_modes::Test_runtime
_rounding_modes()]+0x118): undefined reference to `CGAL::assertion_fail(char
con
st*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function
`CGAL::Interval_nt<true>::Test_runtime_rounding_mod
es::Test_runtime_rounding_modes()':
vector_convex_hull_2.cpp:(.text._ZN4CGAL11Interval_ntILb1EE27Test_runtime_roundi
ng_modesC1Ev[CGAL::Interval_nt<true>::Test_runtime_rounding_modes::Test_runtime_
rounding_modes()]+0x95): undefined reference to `CGAL::assertion_fail(char
const
*, char const*, int, char const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL11Interval_ntILb1EE27Test_runtime_roundi
ng_modesC1Ev[CGAL::Interval_nt<true>::Test_runtime_rounding_modes::Test_runtime_
rounding_modes()]+0x118): undefined reference to `CGAL::assertion_fail(char
cons
t*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function `CGAL::Interval_nt<false>::Interval_nt(double,
doub
le)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL11Interval_ntILb0EEC1Edd[CGAL::Interval_
nt<false>::Interval_nt(double, double)]+0x74): undefined reference to
`CGAL::ass
ertion_fail(char const*, char const*, int, char const*)'
/tmp/ccj5HHJg.o:vector_convex_hull_2.cpp:(.text._ZN4CGAL11get_certainINS_4SignEE
ET_NS_9UncertainIS2_EE[CGAL::Sign
CGAL::get_certain<CGAL::Sign>(CGAL::Uncertain<
CGAL::Sign>)]+0x4a): more undefined references to `CGAL::assertion_fail(char
con
st*, char const*, int, char const*)' follow
/tmp/ccj5HHJg.o: In function
`CGAL::Uncertain<CGAL::Sign>::Uncertain(CGAL::Sign,
 CGAL::Sign)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL9UncertainINS_4SignEEC1ES1_S1_[CGAL::Unc
ertain<CGAL::Sign>::Uncertain(CGAL::Sign, CGAL::Sign)]+0x54): undefined
referenc
e to `CGAL::precondition_fail(char const*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function `CGAL::Uncertain<bool>::Uncertain(bool, bool)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL9UncertainIbEC1Ebb[CGAL::Uncertain<bool>
::Uncertain(bool, bool)]+0x64): undefined reference to
`CGAL::precondition_fail(
char const*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function `CGAL::Handle::Handle(CGAL::Handle const&)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL6HandleC2ERKS0_[CGAL::Handle::Handle(CGA
L::Handle const&)]+0x42): undefined reference to
`CGAL::precondition_fail(char c
onst*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function `CGAL::Gmpq_rep::Gmpq_rep()':
vector_convex_hull_2.cpp:(.text._ZN4CGAL8Gmpq_repC1Ev[CGAL::Gmpq_rep::Gmpq_rep()
]+0xd): undefined reference to `__gmpq_init'
/tmp/ccj5HHJg.o: In function `CGAL::Gmpq_rep::~Gmpq_rep()':
vector_convex_hull_2.cpp:(.text._ZN4CGAL8Gmpq_repD1Ev[CGAL::Gmpq_rep::~Gmpq_rep(
)]+0xd): undefined reference to `__gmpq_clear'
/tmp/ccj5HHJg.o: In function `CGAL::Gmpq::Gmpq(double)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL4GmpqC1Ed[CGAL::Gmpq::Gmpq(double)]+0x66
): undefined reference to `CGAL::assertion_fail(char const*, char const*,
int, c
har const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL4GmpqC1Ed[CGAL::Gmpq::Gmpq(double)]+0x86
): undefined reference to `__gmpq_set_d'
/tmp/ccj5HHJg.o: In function `CGAL::Gmpq::operator-=(CGAL::Gmpq const&)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL4GmpqmIERKS0_[CGAL::Gmpq::operator-=(CGA
L::Gmpq const&)]+0x44): undefined reference to `__gmpq_sub'
/tmp/ccj5HHJg.o: In function `CGAL::Gmpq::operator*=(CGAL::Gmpq const&)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL4GmpqmLERKS0_[CGAL::Gmpq::operator*=(CGA
L::Gmpq const&)]+0x44): undefined reference to `__gmpq_mul'
/tmp/ccj5HHJg.o: In function `CGAL::operator<(CGAL::Gmpq const&, CGAL::Gmpq
cons
t&)':
vector_convex_hull_2.cpp:(.text._ZN4CGALltERKNS_4GmpqES2_[CGAL::operator<(CGAL::
Gmpq const&, CGAL::Gmpq const&)]+0x27): undefined reference to `__gmpq_cmp'
/tmp/ccj5HHJg.o: In function `CGAL::operator==(CGAL::Gmpq const&, CGAL::Gmpq
con
st&)':
vector_convex_hull_2.cpp:(.text._ZN4CGALeqERKNS_4GmpqES2_[CGAL::operator==(CGAL:
:Gmpq const&, CGAL::Gmpq const&)]+0x27): undefined reference to
`__gmpq_equal'
/tmp/ccj5HHJg.o: In function
`CGAL::Tee_for_output_iterator<std::back_insert_ite
rator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<dou
ble> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
ian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesia
n<double> > > >
CGAL::ch__ref_graham_andrew_scan<__gnu_cxx::__normal_iterator<CG
AL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::vect
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::
allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >
 > > >,
CGAL::Tee_for_output_iterator<std::back_insert_iterator<std::vector<CGAL
::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::allocat
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >
> >,
 CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >,
CGAL:
:Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterator
<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::v
ector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>, st
d::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> > > > >,
> __gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL
::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered
_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Tee_for_output_iterator<
std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::
Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<C
GAL::Simple_cartesian<double> > > >&,
CGAL::Filtered_kernel<CGAL::Simple_cartesi
an<double> > const&)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL26ch__ref_graham_andrew_scanIN9__gnu_cxx
17__normal_iteratorIPNS_7Point_2INS_15Filtered_kernelINS_16Simple_cartesianIdEEE
EEESt6vectorIS8_SaIS8_EEEENS_23Tee_for_output_iteratorISt20back_insert_iteratorI
SC_ES8_EES7_EET0_T_SJ_RSI_RKT1_[CGAL::Tee_for_output_iterator<std::back_insert_i
terator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<d
ouble> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cart
esian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
ian<double> > > >
CGAL::ch__ref_graham_andrew_scan<__gnu_cxx::__normal_iterator<
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::ve
ctor<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std
::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
>
 > > > >,
CGAL::Tee_for_output_iterator<std::back_insert_iterator<std::vector<CG
AL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::alloc
ator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >
> >
>, CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >,
CGA
L::Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterat
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std:
:vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double
> > > > > >,
> __gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CG
AL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filter
ed_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Tee_for_output_iterato
r<std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL
::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > > >&,
CGAL::Filtered_kernel<CGAL::Simple_carte
sian<double> > const&)]+0xbf): undefined reference to
`CGAL::precondition_fail(c
har const*, char const*, int, char const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL26ch__ref_graham_andrew_scanIN9__gnu_cxx
17__normal_iteratorIPNS_7Point_2INS_15Filtered_kernelINS_16Simple_cartesianIdEEE
EEESt6vectorIS8_SaIS8_EEEENS_23Tee_for_output_iteratorISt20back_insert_iteratorI
SC_ES8_EES7_EET0_T_SJ_RSI_RKT1_[CGAL::Tee_for_output_iterator<std::back_insert_i
terator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<d
ouble> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cart
esian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
ian<double> > > >
CGAL::ch__ref_graham_andrew_scan<__gnu_cxx::__normal_iterator<
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::ve
ctor<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std
::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
>
 > > > >,
CGAL::Tee_for_output_iterator<std::back_insert_iterator<std::vector<CG
AL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::alloc
ator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >
> >
>, CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >,
CGA
L::Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterat
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std:
:vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double
> > > > > >,
> __gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CG
AL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filter
ed_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Tee_for_output_iterato
r<std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL
::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > > >&,
CGAL::Filtered_kernel<CGAL::Simple_carte
sian<double> > const&)]+0x11c): undefined reference to
`CGAL::precondition_fail(
char const*, char const*, int, char const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL26ch__ref_graham_andrew_scanIN9__gnu_cxx
17__normal_iteratorIPNS_7Point_2INS_15Filtered_kernelINS_16Simple_cartesianIdEEE
EEESt6vectorIS8_SaIS8_EEEENS_23Tee_for_output_iteratorISt20back_insert_iteratorI
SC_ES8_EES7_EET0_T_SJ_RSI_RKT1_[CGAL::Tee_for_output_iterator<std::back_insert_i
terator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<d
ouble> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cart
esian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
ian<double> > > >
CGAL::ch__ref_graham_andrew_scan<__gnu_cxx::__normal_iterator<
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::ve
ctor<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std
::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
>
 > > > >,
CGAL::Tee_for_output_iterator<std::back_insert_iterator<std::vector<CG
AL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::alloc
ator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >
> >
>, CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >,
CGA
L::Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterat
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std:
:vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double
> > > > > >,
> __gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CG
AL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filter
ed_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Tee_for_output_iterato
r<std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL
::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > > >&,
CGAL::Filtered_kernel<CGAL::Simple_carte
sian<double> > const&)]+0x18b): undefined reference to
`CGAL::precondition_fail(
char const*, char const*, int, char const*)'
vector_convex_hull_2.cpp:(.text._ZN4CGAL26ch__ref_graham_andrew_scanIN9__gnu_cxx
17__normal_iteratorIPNS_7Point_2INS_15Filtered_kernelINS_16Simple_cartesianIdEEE
EEESt6vectorIS8_SaIS8_EEEENS_23Tee_for_output_iteratorISt20back_insert_iteratorI
SC_ES8_EES7_EET0_T_SJ_RSI_RKT1_[CGAL::Tee_for_output_iterator<std::back_insert_i
terator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<d
ouble> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cart
esian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
ian<double> > > >
CGAL::ch__ref_graham_andrew_scan<__gnu_cxx::__normal_iterator<
CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::ve
ctor<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std
::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
>
 > > > >,
CGAL::Tee_for_output_iterator<std::back_insert_iterator<std::vector<CG
AL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::alloc
ator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >
> >
>, CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > >,
CGA
L::Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterat
or<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std:
:vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double
> > > > > >,
> __gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CG
AL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filter
ed_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Tee_for_output_iterato
r<std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL
::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kern
el<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Point_2<CGAL::Filtered_kernel
<CGAL::Simple_cartesian<double> > > >&,
CGAL::Filtered_kernel<CGAL::Simple_carte
sian<double> > const&)]+0x374): undefined reference to
`CGAL::assertion_fail(cha
r const*, char const*, int, char const*)'
/tmp/ccj5HHJg.o: In function
`std::back_insert_iterator<std::vector<CGAL::Point_
2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL:
:Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > > > >
CGAL::ch
_akl_toussaint<__gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<
CGAL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_ke
rnel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filt
ered_kernel<CGAL::Simple_cartesian<double> > > > > >,
std::back_insert_iterator<
std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
>
 >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<do
uble> > > > > >, CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>(__gnu_
cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesia
n<double> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_car
tesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Sim
ple_cartesian<double> > > > > >,
__gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL
::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2
<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::
Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > > > >,
std::bac
k_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_c
artesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::S
imple_cartesian<double> > > > > >,
CGAL::Filtered_kernel<CGAL::Simple_cartesian<
double> > const&)':
vector_convex_hull_2.cpp:(.text._ZN4CGAL16ch_akl_toussaintIN9__gnu_cxx17__normal
_iteratorIPNS_7Point_2INS_15Filtered_kernelINS_16Simple_cartesianIdEEEEEESt6vect
orIS8_SaIS8_EEEESt20back_insert_iteratorISC_ES7_EET0_T_SH_SG_RKT1_[std::back_ins
     
ert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartes
     
ian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple     
_cartesian<double> > > > > >
CGAL::ch_akl_toussaint<__gnu_cxx::__normal_iterator     
<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::v     
ector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> >
>, st     
d::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
      
> > > > >,
std::back_insert_iterator<std::vector<CGAL::Point_2<CGAL::Filtered_ke     
rnel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filt     
ered_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Filtered_kernel<CGAL      ::Simple_cartesian<double> >
>(__gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::     
Filtered_kernel<CGAL::Simple_cartesian<double> > >*,
std::vector<CGAL::Point_2<C     
GAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::Po     
int_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > > > >,
__gnu_cxx:     
:__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<do
     
uble> > >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesi     
an<double> > >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_     
cartesian<double> > > > > >,
std::back_insert_iterator<std::vector<CGAL::Point_2     
<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > >,
std::allocator<CGAL::     
Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double> > > > > >,
CGAL::Fi      ltered_kernel<CGAL::Simple_cartesian<double> >
const&)]+0xb25): undefined refere      nce to `CGAL::postcondition_fail(char
const*, char const*, int, char const*)'
collect2: ld returned 1 exit status
/////////////////////////////////////////////////////////////////////////////////////////////////////////////
please help me ,may do not install cgal completely  or no? thank and best
regard.
  
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