4 Installing NormalizInterface
  
  
  4.1 Compiling
  
  NormalizInterface supports GAP 4.8.0 or later, and Normaliz 3.0.0 or later.
  
  For  technical reasons, installing and using NormalizInterface requires that
  your  version of GAP is compiled in a special way. Specifically, GAP must be
  compiled  against  the exact same version of the GMP library as Normaliz. By
  default,  GAP  compiles its own version of GMP; however, we cannot use that,
  as it lacks C++ support, which is required by Normaliz.
  
  Thus as the very first step, please install a version of GMP in your system.
  On most Linux and BSD distributions, there should be a GMP package available
  with  your  system's  package  manager. On Mac OS X, you can install GMP via
  Fink, MacPorts or Homebrew.
  
  Next,  make  sure  your GAP installation is compiled against the system wide
  GMP  installation. To do so, switch to the GAP root directory, and enter the
  following commands:
  
  
    make clean
    ./configure --with-gmp=system
    make
  
  
  Next  you  need  to  compile a recent version of Normaliz. This requires the
  presence  of several further system software packages, which you install via
  your system's package manager. At least the following are required:
  
      git
  
      cmake
  
      boost
  
  Once  you  have  installed  these,  you  can  build  Normaliz  by  using the
  build-normaliz.sh  script we provide. It takes a single, optional parameter:
  the location of the GAP root directory.
  
  
    ./build-normaliz.sh GAPDIR
  
  
  Once  it  completed  successfully, you can then build NormalizInterface like
  this:
  
  
    ./configure --with-gaproot=GAPDIR
    make
  
  
  If  you  need  to  customize the normaliz compilation, please have a look at
  Normaliz.git/source/INSTALL.  Remember  to  use  the  same  compiler and GMP
  version as for GAP.