Mex Compilation on Matlab2014a with Mac OSX10.10

Hi, the library that i am trying to compile is spams http://spams-devel.gforge.inria.fr. When i run the compile file after setting some paths to the compiler it complains of the dynamic linker (ld) being unable to find symbols. I did mex -v and the output i get is as below

->    MATLAB                = /Applications/MATLAB_R2014a.app

->    CC                    = xcrun  -sdk macosx10.11  clang

->    CC flags:
         CFLAGS             = -fno-common -arch x86_64 -isysroot 

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.11  -fexceptions

           CDEBUGFLAGS        = -g
           COPTIMFLAGS        = -O2 -DNDEBUG
           CLIBS              = -L/Applications/MATLAB_R2014a.app/bin/maci64 -lmx -lmex -lmat -lc++
           arguments          =  -DMX_COMPAT_32
  ->    CXX                   = xcrun  -sdk macosx10.11  clang++
  ->    CXX flags:
           CXXFLAGS           = -fno-common -fexceptions -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.11 -stdlib=libc++
           CXXDEBUGFLAGS      = -g
           CXXOPTIMFLAGS      = -O2 -DNDEBUG
           CXXLIBS            = -L/Applications/MATLAB_R2014a.app/bin/maci64 -lmx -lmex -lmat -lc++
           arguments          =  -DMX_COMPAT_32
  ->    FC                    = gfortran
  ->    FC flags:
           FFLAGS             = -fexceptions -m64 -fbackslash
           FDEBUGFLAGS        = -g
           FOPTIMFLAGS        = -O
           FLIBS              = -L/Applications/MATLAB_R2014a.app/bin/maci64 -lmx -lmex -lmat -L -lgfortran -L -lgfortranbegin
           arguments          =  -DMX_COMPAT_32
  ->    LD                    = xcrun -sdk macosx10.11 clang
  ->    Link flags:
           LDFLAGS            = -arch x86_64 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.11 -bundle -Wl,-exported_symbols_list,/Applications/MATLAB_R2014a.app/extern/lib/maci64/mexFunction.map
           LDDEBUGFLAGS       = -g
           LDOPTIMFLAGS       = -O
           LDEXTENSION        = .mexmaci64
           arguments          = 
  ->    LDCXX                 = 
  ->    Link flags:
           LDCXXFLAGS         = 
           LDCXXDEBUGFLAGS    = 
           LDCXXOPTIMFLAGS    = 
           LDCXXEXTENSION     = 
           arguments          =

the LDCXX is not set. Can someone please help me setup the LDCXX. I am using Xcode 7.0.1 with Mac OSX10.10.5

Thanks

-Haris