install votca on mac os

[Conrard Giresse TETSASSI FEUGMO]

Hi everyone,

I am a new votca user and I have a mac os ( running om Mojave).

I try to install votca and I have this error message.

could anyone help me figure out this issue

```

cmake -DBUILD_CSGAPPS=ON -DBUILD_CTP=ON -DBUILD_XTP=ON -DWITH_GMX=ON  -DCMAKE_INSTALL_PREFIX=/Applications/votca/


-- The following OPTIONAL packages have been found:

 * Git
 * FFTW3
 * EXPAT
 * TXT2TAGS
 * UnixCommands
 * PkgConfig
 * Doxygen
 * CLANG_FORMAT (required version >= 7.0.1)

-- The following REQUIRED packages have been found:

 * Threads
 * GROMACS (required version >= 20160000)
 * GSL
 * LIBXC
 * HDF5 (required version >= 1.8)
 * Boost (required version >= 1.57.0)
 * Eigen3 (required version >= 3.3.0)
 * SQLITE3
 * VOTCA_TOOLS
 * VOTCA_CSG
 * VOTCA_CTP

-- The following OPTIONAL packages have not been found:

 * OpenMP
 * MKL

-- Configuring done
-- Generating done
-- Build files have been written to: /Users/ctetsass/votca/build

make

Scanning dependencies of target votca_ctp
[ 27%] Building CXX object ctp/src/libctp/CMakeFiles/votca_ctp.dir/apolarsite.cc.o
[ 27%] Building CXX object ctp/src/libctp/CMakeFiles/votca_ctp.dir/calculatorfactory.cc.o
In file included from /Users/ctetsass/votca/ctp/src/libctp/calculatorfactory.cc:24:
In file included from /Users/ctetsass/votca/ctp/src/libctp/calculators/sandbox.h:24:
/Users/ctetsass/votca/ctp/include/votca/ctp/parallelpaircalc.h:40:32: error: field of type 'QMNBList::iterator'
      (aka '__wrap_iter<votca::ctp::QMPair **>') has private constructor
    ParallelPairCalculator() : _nextPair(NULL) {};
                               ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/iterator:1420:31: note: declared private
      here
    _LIBCPP_INLINE_VISIBILITY __wrap_iter(iterator_type __x) _NOEXCEPT_DEBUG : __i(__x) {}
                              ^
1 error generated.
make[2]: *** [ctp/src/libctp/CMakeFiles/votca_ctp.dir/calculatorfactory.cc.o] Error 1
make[1]: *** [ctp/src/libctp/CMakeFiles/votca_ctp.dir/all] Error 2
make: *** [all] Error 2

```