Minimal example

CMake file to find Feel++ and create a minimal application

cmake_minimum_required(VERSION 3.0) (1)
project(minimal) (2)

# find Feel++ package
find_package(Feel++
  PATHS
  $ENV{FEELPP_DIR}/share/feelpp/feel/cmake/modules
  /usr/share/feelpp/cmake/modules
  /usr/local/share/feelpp/feel/cmake/modules
  REQUIRED) (3)

# create application feelpp_minimal
feelpp_add_application( app SRCS minimal.cpp) (4)

1	defines the minimal version of {cmake} to use
2	defines the project name
3	finds the Feel++ package in the `PATHS` defined afterwards, it is required that Feel++ is found in order to compile the application
4	defines the application `feelpp_minimal_app` using the following scheme `<feelpp>_<project name>_<application name>` and the source file `minimal.cpp`

To compile you need

to define the environment variable FEELPP_DIR is Feel++ is not installed in a standard directory prefix such as /usr or /usr/local. For example if Feel++ is installed in /opt/feelpp,
```
export FEELPP_DIR=/opt/feelpp
```
to define a C++ compiler, e.g. clang++-6.0, to compile the application
```
export CXX=clang++-6.0
```

Then, the compilation command line is as follows:

git clone https://github.com/feelpp/minimal.git (1)
mkdir build && cd build (2)
cmake ../minimal (3)
make (4)

1	git clone the minimal example repository
2	create a build directory out of the sources
3	call {cmake}
4	build the application `feelpp_minimal_app`

1. What’s next ?

The next steps are:

start from the minimal or a quickstart application to develop your own Feel++ C++ application.
read the reference manual.