Update README.md for completeness in case of RHEL7

README.md

@@ -7,33 +7,111 @@ CGAL, any binary generated with it retains the GPLv3 license.
 
 # How to install
 
-The vtkCGAL project requires the [CMake](https://cmake.org/) build system, the [VTK library](https://vtk.org/)
-and the [CGAL library](https://www.cgal.org/) on your system.
+The vtkCGAL project requires the [CMake](https://cmake.org/) build system, the [VTK library](https://vtk.org/) and [CGAL](https://doc.cgal.org/latest/Manual/usage.html)
+
+### conda libraries
+```
+conda create -n <env> python=3.9.*
+conda install intel-openmp boost
+
+```
+### cmake ( RHEL7)
+
+```
+wget https://github.com/Kitware/CMake/releases/download/v3.22.2/cmake-3.22.2-linux-x86_64.sh
+chmod +x cmake-3.22.2-linux-x86_64.sh 
+sudo mkdir /opt/cmake.3.22
+cd /opt/cmake.3.22/
+sudo bash ~/cmake-3.22.2-linux-x86_64.sh 
+```
 
 ### VTK
 
 We need VTK >= 9.0. It can be installed:
 * using the package manager of your system (including brew on OSX, or vcpkg on Windows),
-* manually using [CMake instructions](https://vtk.org/Wiki/VTK/Configure_and_Build).
+* manually using [CMake instructions](https://vtk.org/Wiki/VTK/Configure_and_Build) (RHEL7)
+```
+
+
+wget https://www.vtk.org/files/release/9.1/VTK-9.1.0.tar.gz
+tar xvzf VTK-9.1.0.tar.gz 
+cd VTK-9.1.0/
+mkdir build
+cd build/
+/opt/cmake.3.22/cmake-3.22.2-linux-x86_64/bin/ccmake ../VTK-9.1.0
+make -j40
+sudo mkdir /opt/VTK
+sudo mv * /opt/VTK/ 
+```
+  - Environment vars
+![vtk build params](vtk_build_params.png)
 
+```
+sudo make install
+```
 ### CGAL
 
 We need CGAL >= 5.3. It can be installed:
 * using the package manager of your system (including brew on OSX, or vcpkg on Windows),
-* manually using [CMake instructions](https://doc.cgal.org/latest/Manual/installation.html#installation_configwithcmake).
+* manually using [CMake instructions](https://doc.cgal.org/latest/Manual/installation.html#installation_configwithcmake) (RHEL7)
+```
+wget https://github.com/CGAL/cgal/releases/download/v5.4/CGAL-5.4-library.tar.xz
+tar xvf CGAL-5.4-library.tar.xz 
+cd CGAL-5.4/
+mkdir build
+cd build/
+/opt/cmake.3.22/cmake-3.22.2-linux-x86_64/bin/cmake ..
+sudo make install
+ll /opt/CGAL/lib/cmake/CGAL/
+```
 
+### GMP
+```
+wget https://gmplib.org/download/gmp/gmp-6.2.1.tar.xz
+tar -xf gmp-6.2.1.tar.xz
+cd gmp-6.2.1
+PREFIX=/opt/gmp
+./configure --prefix=$PREFIX
+sudo make all
+sudo make install
+cp gmpxx.h $PREFIX/include
+export GMP_INCLUDE_DIR=$PREFIX/include
+export GMP_LIBRARIES=$PREFIX/lib
+```
 ### vtkCGAL
 
 Then, we can install this project using the standard CMake procedure:
 
-1. Create a build folder
-1. Launch CMake with this repository as source folder
-1. Configure the project. It will need VTK and CGAL.
+1. Clone the project repository
+   ```
+   wget https://gitlab.kitware.com/vtk-cgal/vtk-cgal/-/archive/master/vtk-cgal-master.tar.gz
+   ```
+2. Create a build folder
+3. Launch CMake with this repository as source folder
+4. Configure the project. It will need VTK and CGAL.
+	`ccmake .` to configure the specific libraries folder
    - If you have installed a library in a custom folder, you can find it in CMake
      by giving the folder: **install_dir**/lib/cmake/**project-version**. For example,
      for VTK: **install_dir**/lib/cmake/vtk-9.1.
    - You can provide a custom `CMAKE_INSTALL_PREFIX` if you do not want to install
      this project system wide.
-1. Build and install this project (please refer to the
+5. Build and install this project (please refer to the
    [VTK tutorial](https://vtk.org/Wiki/VTK/Configure_and_Build#Build_VTK)
    if you do not know how to proceed).
+```
+cd /path/to/vtkCGAL-build
+make -j8
+```
+
+### MPFR
+choosen path is 
+`/data/anaconda3/pkgs/mpfr-4.0.2-he80fd80_1/lib/`
+`/data/anaconda3/pkgs/mpfr-4.0.2-he80fd80_1/include`
+
+# Test
+
+1. Test your setup
+	`ctest`
+	`ctest -VV` if something goes wrong
+
+