Installation Instructions ========================= This file contains instructions for building and installing LEMON from source on Linux. The process on Windows is similar. Note that it is not necessary to install LEMON in order to use it. Instead, you can easily integrate it with your own code directly. For instructions, see https://lemon.cs.elte.hu/trac/lemon/wiki/HowToCompile In order to install LEMON from the extracted source tarball you have to issue the following commands: 1. Step into the root of the source directory. $ cd lemon-x.y.z 2. Create a build subdirectory and step into it. $ mkdir build $ cd build 3. Perform system checks and create the makefiles. $ cmake .. 4. Build LEMON. $ make This command compiles the non-template part of LEMON into libemon.a file. It also compiles the programs in the 'tools' and 'demo' subdirectories. 5. [Optional] Compile and run the self-tests. $ make check 5. [Optional] Generate the user documentation. $ make html The release tarballs already include the documentation. Note that for this step you need to have the following tools installed: Python, Doxygen, Graphviz, Ghostscript, LaTeX. 6. [Optional] Install LEMON $ make install This command installs LEMON under /usr/local (you will need root privileges to be able to do that). If you want to install it to some other location, then pass the -DCMAKE_INSTALL_PREFIX=DIRECTORY flag to cmake in Step 3. For example: $ cmake -DCMAKE_INSTALL_PREFIX=/home/username/lemon' Configure Options and Variables =============================== In Step 3, you can customize the build process by passing options to CMAKE. $ cmake [OPTIONS] .. You find a list of the most useful options below. -DCMAKE_INSTALL_PREFIX=PREFIX Set the installation prefix to PREFIX. By default it is /usr/local. -DCMAKE_BUILD_TYPE=[Release|Debug|Maintainer|...] This sets the compiler options. The choices are the following 'Release': A strong optimization is turned on (-O3 with gcc). This is the default setting and we strongly recommend using this for the final compilation. 'Debug': Optimization is turned off and debug info is added (-O0 -ggdb with gcc). If is recommended during the development. 'Maintainer': The same as 'Debug' but the compiler warnings are converted to errors (-Werror with gcc). In addition, 'make' will also automatically compile and execute the test codes. It is the best way of ensuring that LEMON codebase is clean and safe. 'RelWithDebInfo': Optimized build with debug info. 'MinSizeRel': Size optimized build (-Os with gcc) -DTEST_WITH_VALGRIND=YES Using this, the test codes will be executed using valgrind. It is a very effective way of identifying indexing problems and memory leaks. -DCMAKE_CXX_COMPILER=path-to-compiler Change the compiler to be used. -DBUILD_SHARED_LIBS=TRUE Build shared library instead of static one. Think twice if you really want to use this option. -DGLPK_ROOT_DIR=DIRECTORY -DCOIN_ROOT_DIR=DIRECTORY -DILOG_ROOT_DIR=DIRECTORY Install root directory prefixes of optional third party libraries. Makefile Variables ================== make VERBOSE=1 This results in a more verbose output by showing the full compiler and linker commands.