[Ipopt] FW: IPOPT MATLAB Interface Linking Porblem

[Ge, Ming]

Hello Everyone:
I am a new starter of IPOPT and Linux system, I am trying to install IPOPT into my Ubuntu system but I got some problems in the final step: Linking IPOPT with MATLAB interface.
The Linux system I am using is Ubuntu 10.04 x64, MATLAB version is 2011a x64, GCC version is 4.3.4 and IPOPT 3.9.3
I followed the standard installation guide, ran and passed the initial "configure", "make", "make test" and "make install", and finally after I modified the "Makefile" by filling in the MATLAB installation folder:
MATLAB_HOME = /usr/local/MATLAB/R2011a
And
MEXSUFFIX   = mexa64
I ran the command "sudo  make install" it gave the following error:
g++-4.3 -O3 -pipe -DNDEBUG -pedantic-errors -Wimplicit -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -ansi -D_GNU_SOURCE -fPIC -fno-omit-frame-pointer -pthread  -DMATLAB_MEXFILE  `PKG_CONFIG_PATH=/home/ming/Documents/Ipopt-3.9.3/build/lib/pkgconfig: /usr/bin/pkg-config --cflags ipopt` -I/usr/local/MATLAB/R2011a /extern/include \
        -o matlabexception.o -c ../../../../../Ipopt/contrib/MatlabInterface/src/matlabexception.cpp
g++-4.3: /extern/include: No such file or directory
make: *** [matlabexception.o] Error 1
And produce only one file: matlabexception.o
The "configure" command I tried at the beginning are:
sudo ../configure CXX=g++-4.3 CC=gcc-4.3 F77=gfortran-4.3 ADD_CXXFLAGS="-fPIC -fexceptions" ADD_CFLAGS="-fPIC -fexceptions" ADD_FFLAGS="-fPIC -fexceptions"
sudo ../configure CXX=g++-4.3 CC=gcc-4.3 F77=gfortran-4.3 ADD_CXXFLAGS=" -ansi -D_GNU_SOURCE -fPIC -fno-omit-frame-pointer -pthread" ADD_CFLAGS="-ansi -D_GNU_SOURCE  -fexceptions -fPIC -fno-omit-frame-pointer -pthread" ADD_FFLAGS=" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer"
When I run the command "mex -v" in my MATLAB it gives:
-> mexopts.sh sourced from directory (DIR = $HOME/.matlab/$REL_VERSION)
   FILE = /home/ming/.matlab/R2011a/mexopts.sh
----------------------------------------------------------------
->    MATLAB                = /usr/local/MATLAB/R2011a
->    CC                    = gcc
->    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/R2011a/bin/glnxa64 -L/usr/local/MATLAB/R2011a/bin/glnxa64 -lmx -lmex -lmat -lm -lstdc++
         arguments          =  -DMX_COMPAT_32
->    CXX                   = g++
->    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/R2011a/bin/glnxa64 -L/usr/local/MATLAB/R2011a/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/R2011a/bin/glnxa64 -L/usr/local/MATLAB/R2011a/bin/glnxa64 -lmx -lmex -lmat -lm
         arguments          =  -DMX_COMPAT_32
->    LD                    = gcc
->    Link flags:
         LDFLAGS            = -pthread -shared -Wl,--version-script,/usr/local/MATLAB/R2011a/extern/lib/glnxa64/mexFunction.map -Wl,--no-undefined
        LDDEBUGFLAGS       = -g
         LDOPTIMFLAGS       = -O
         LDEXTENSION        = .mexa64
         arguments          =
->    LDCXX                 =
->    Link flags:
         LDCXXFLAGS         =
         LDCXXDEBUGFLAGS    =
         LDCXXOPTIMFLAGS    =
         LDCXXEXTENSION     =
         arguments          =
----------------------------------------------------------------


    mex:  no file name given.

    Usage:
      MEX [option1 ... optionN] sourcefile1 [... sourcefileN]
          [objectfile1 ... objectfileN] [libraryfile1 ... libraryfileN]

    Use the -help option for more information, or consult the MATLAB External Interfaces Guide.

??? Error using ==> mex at 208

I hope the information below can help you guys making suggestions. Any help is appreciated.

Best Regards

Stephen

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