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BUILDING.md

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The most straightforward way to build the EPANET files is by using CMake (https://cmake.org/). CMake is a cross-platform build tool that generates platform native build systems that can be used with your compiler of choice. It uses a generator concept to represent different build tooling. CMake automatically detects the platform it is running on and generates the appropriate makefiles for the platform default compiler. Different generators can also be specified.

The project's CMake file (CMakeLists.txt) is located in its root directory and supports builds for Linux, Mac OS and Windows. To build the EPANET library and its command line executable using CMake, first open a console window and navigate to the project's root directory. Then enter the following commands:

mkdir build
cd build
cmake ..
cmake --build . --config Release

Note: under Windows, the third command should be cmake .. -A Win32 for a 32-bit build or cmake .. -A x64 for a 64-bit build when Microsoft Visual Studio is the default compiler.

For Windows the resulting EPANET toolkit library epanet2.dll and its command line executable runepanet.exe are placed in the build\bin\Release directory. The build\lib\Release directory will contain an epanet2.lib file which is needed to build C/C++ applications using the Windows version of the library. For Linux and Mac OS the EPANET toolkit shared library libepanet2.so appears in the build/lib directory and the command line executable runepanet is in the build/bin directory.

In addition, two Windows one-click-build scripts are included in the win_build directory:

  1. Makefile2.bat: this script uses the CMake file and requires the build tools for Visual Studio available from https://visualstudio.microsoft.com/downloads/. The Community version will work just fine. This script was tested with Visual Studio 2017 and 2019.
  2. Makefile.bat: this is the legacy build script compatible with Visual Studio 2010 which conforms with the C89 Standard which was the standard EPANET supported from earlier versions. This script requires the installation of Microsoft Windows SDK 7.1 (https://www.microsoft.com/en-us/download/details.aspx?id=8279) and will probably not run correctly on later versions of the SDK. CMake is not used in this script.

These two scripts build EPANET binaries for both the 32 and 64 bit Windows platforms, placing them in the win_build\32bit and win_build\64bit directories, respectively.