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["" <>]

Hi,

I am new to both Linux and CGAL, so apologies in advance for a naive
question.

I am trying to compile the file attached with this thread
(spherevoronoi.cpp) using same mex command and getting the same error:
*version `GLIBCXX_3.4.15' not found (required by /usr/bin/ld) *

/>>>mex -v spherevoronoi.cpp -ICGAL -lgmp -lboost_thread
-I/usr/include/:/usr/local/include/:/usr/local/MATLAB/R2012a/extern/include/
-L/usr/lib/:/usr/local/lib/:/usr/local/MATLAB/R2012a/extern/lib/glnxa64/

**************************************************************************
  Warning: Neither -compatibleArrayDims nor -largeArrayDims is selected. 
           Using -compatibleArrayDims. In the future, MATLAB will require
           the use of -largeArrayDims and remove the -compatibleArrayDims
           option. For more information, see:
          
http://www.mathworks.com/help/techdoc/matlab_external/bsflnue-1.html
**************************************************************************

-> mexopts.sh sourced from directory (DIR = $PREF_DIR)
   FILE = /home/comet/.matlab/R2012a/mexopts.sh
----------------------------------------------------------------
->    MATLAB                = /usr/local/MATLAB/R2012a
->    CC                    = gcc-4.4
->    CC flags:
         CFLAGS             = -ansi -D_GNU_SOURCE  -fexceptions -fPIC
-fno-omit-frame-pointer -pthread
         CDEBUGFLAGS        = -g
         COPTIMFLAGS        = -O -DNDEBUG
         CLIBS              =
-Wl,-rpath-link,/usr/local/MATLAB/R2012a/bin/glnxa64
-L/usr/local/MATLAB/R2012a/bin/glnxa64 -lmx -lmex -lmat -lm
-L/usr/local/MATLAB/R2012a/sys/os/glnxa64 -lstdc++
         arguments          =  -DMX_COMPAT_32
->    CXX                   = g++-4.4
->    CXX flags:
         CXXFLAGS           = -ansi -D_GNU_SOURCE -fPIC
-fno-omit-frame-pointer -pthread
         CXXDEBUGFLAGS      = -g
         CXXOPTIMFLAGS      = -O -DNDEBUG
         CXXLIBS            =
-Wl,-rpath-link,/usr/local/MATLAB/R2012a/bin/glnxa64
-L/usr/local/MATLAB/R2012a/bin/glnxa64 -lmx -lmex -lmat -lm
         arguments          =  -DMX_COMPAT_32
->    FC                    = gfortran
->    FC flags:
         FFLAGS             = -fexceptions -fbackslash -fPIC
-fno-omit-frame-pointer
         FDEBUGFLAGS        = -g
         FOPTIMFLAGS        = -O
         FLIBS              =
-Wl,-rpath-link,/usr/local/MATLAB/R2012a/bin/glnxa64
-L/usr/local/MATLAB/R2012a/bin/glnxa64 -lmx -lmex -lmat -lm
         arguments          =  -DMX_COMPAT_32
->    LD                    = g++-4.4
->    Link flags:
         LDFLAGS            = -pthread -shared
-Wl,--version-script,/usr/local/MATLAB/R2012a/extern/lib/glnxa64/mexFunction.map
-Wl,--no-undefined
         LDDEBUGFLAGS       = -g
         LDOPTIMFLAGS       = -O
         LDEXTENSION        = .mexa64
         arguments          =  -lgmp -lboost_thread
-L/usr/lib/:/usr/local/lib/:/usr/local/MATLAB/R2012a/extern/lib/glnxa64/
->    LDCXX                 = 
->    Link flags:
         LDCXXFLAGS         = 
         LDCXXDEBUGFLAGS    = 
         LDCXXOPTIMFLAGS    = 
         LDCXXEXTENSION     = 
         arguments          =  -lgmp -lboost_thread
-L/usr/lib/:/usr/local/lib/:/usr/local/MATLAB/R2012a/extern/lib/glnxa64/
----------------------------------------------------------------

-> g++-4.4 -c  -ICGAL
-I/usr/include/:/usr/local/include/:/usr/local/MATLAB/R2012a/extern/include/
-I/usr/local/MATLAB/R2012a/extern/include
-I/usr/local/MATLAB/R2012a/simulink/include -DMATLAB_MEX_FILE -ansi
-D_GNU_SOURCE -fPIC -fno-omit-frame-pointer -pthread  -DMX_COMPAT_32 -O
-DNDEBUG  "spherevoronoi.cpp"

-> g++-4.4 -O -pthread -shared
-Wl,--version-script,/usr/local/MATLAB/R2012a/extern/lib/glnxa64/mexFunction.map
-Wl,--no-undefined -o  "spherevoronoi.mexa64"  spherevoronoi.o  -lgmp
-lboost_thread
-L/usr/lib/:/usr/local/lib/:/usr/local/MATLAB/R2012a/extern/lib/glnxa64/
-Wl,-rpath-link,/usr/local/MATLAB/R2012a/bin/glnxa64
-L/usr/local/MATLAB/R2012a/bin/glnxa64 -lmx -lmex -lmat -lm

/usr/bin/ld: /usr/local/MATLAB/R2012a/bin/glnxa64/libstdc++.so.6: version
`GLIBCXX_3.4.15' not found (required by /usr/bin/ld)
collect2: ld returned 1 exit status

    mex: link of ' "spherevoronoi.mexa64"' failed.

Error using mex (line 206)
Unable to complete successfully.
/


I tried to mimic the solution suggested by "魏华祎" but failed to get the
compiled. Can some CGAL expert folk help me with exact commands (as I am new
to linux) so that the file get compiled by mex without any trouble?

My Ubuntu version is 12.04, Matlab 2012a, g++/gcc 4.4. Please note that, I
can easily compile a c++ file that do not reference CGAL library, using mex
command. The problem occurs as soon as I use CGAL library.

Will appreciate your help,

Regards,
A.




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