How to Build MySQL server with CMake WHAT YOU NEED --------------------------------------------------------------- CMake version 2.6 or later installed on your system. HOW TO INSTALL: Linux distributions: shell> sudo apt-get install cmake The above works on do Debian/Ubuntu based distributions.On others, command line needs to be modified to e.g "yum install" on Fedora or "zypper install" on OpenSUSE. OpenSolaris: shell> pfexec pkgadd install SUNWcmake Windows and Mac OSX: Download and install the latest distribution from http://www.cmake.org/cmake/resources/software.html.On Windows, download installer exe file and run it. On Mac, download the .dmg image and open it. Other Unixes: Precompiled packages for other Unix flavors (HPUX, AIX) are available from http://www.cmake.org/cmake/resources/software.html Alternatively, you can build from source, source package is also available on CMake download page. Compiler Tools -------------- You will need a working compiler and make utility on your OS. On Windows, install Visual Studio (Express editions will work too). On Mac OSX, install Xcode tools. BUILD --------------------------------------------------------------- Ensure that compiler and cmake are in PATH. The following description assumes that current working directory is the source directory. - Generic build on Unix, using "Unix Makefiles" generator shell>cmake . shell>make Note: by default, cmake build is less verbose than automake build. Use "make VERBOSE=1" if you want to see add command lines for each compiled source. - Windows, using "Visual Studio 9 2008" generator shell>cmake . -G "Visual Studio 9 2008" shell>devenv MySQL.sln /build /relwithdebinfo (alternatively, open MySQL.sln and build using the IDE) - Windows, using "NMake Makefiles" generator shell>cmake . -G "NMake Makefiles" shell>nmake - Mac OSX build with Xcode shell>cmake . -G Xcode shell>xcodebuild -configuration Relwithdebinfo (alternatively, open MySQL.xcodeproj and build using the IDE) Command line build with CMake 2.8 After creating project with cmake -G as above, issue cmake . --build this works with any CMake generator. For Visual Studio and Xcode you might want to add an extra configuration parameter, to avoid building all configurations. cmake . --build --config Relwithdebinfo Building "out-of-source" --------------------------------------------------------------- Building out-of-source provides additional benefits. For example it allows to build both Release and Debug configurations using the single source tree.Or build the same source with different version of the same compiler or with different compilers. Also you will prevent polluting the source tree with the objects and binaries produced during the make. Here is an example on how to do it (generic Unix), assuming the source tree is in directory named src and the current working directory is source root. shell>mkdir ../build # build directory is called build shell>cd ../build shell>cmake ../src Note: if a directory was used for in-source build, out-of-source will not work. To reenable out-of-source build, remove /CMakeCache.txt file. CONFIGURATION PARAMETERS --------------------------------------------------------------- The procedure above will build with default configuration. Let's you want to change the configuration parameters and have archive storage engine compiled into the server instead of building it as pluggable module. 1)You can provide parameters on the command line, like shell> cmake . -DWITH_ARCHIVE_STORAGE_ENGINE=1 This can be done during the initial configuration or any time later. Note, that parameters are "sticky", that is they are remebered in the CMake cache (CMakeCache.txt file in the build directory) 2) Configuration using cmake-gui (Windows, OSX, or Linux with cmake-gui installed) From the build directory, issue shell> cmake-gui . - Check the WITH_INNOBASE_STORAGE_ENGINE checkbox - Click on "Configure" button - Click on "Generate" button - Close cmake-gui shell> make 3)Using ccmake (Unix) ccmake is curses-based GUI application that provides the same functionality as cmake-gui. It is less user-friendly compared to cmake-gui but works also on exotic Unixes like HPUX, AIX or Solaris. Besides storage engines, probably the most important parameter from a developer's point of view is WITH_DEBUG (this allows to build server with dbug tracing library and with debug compile flags). After changing the configuration, recompile using shell> make Listing configuration parameters --------------------------------------------------------------- shell> cmake -L Gives a brief overview of important configuration parameters (dump to stdout) shell> cmake -LH Does the same but also provides a short help text for each parameter. shell> cmake -LAH Dumps all config parameters (including advanced) to the stdout. PACKAGING --------------------------------------------------------------- -- Binary distribution -- Packaging in form of tar.gz archives (or .zip on Windows) is also supported To create a tar.gz package, 1)If you're using "generic" Unix build with makefiles shell> make package this will create a tar.gz file in the top level build directory. 2)On Windows, using "NMake Makefiles" generator shell> nmake package 3)On Windows, using "Visual Studio" generator shell> devenv mysql.sln /build relwithdebinfo /project package Note On Windows, 7Zip or Winzip must be installed and 7z.exe rsp winzip.exe need to be in the PATH. Another way to build packages is calling cpack executable directly like shell> cpack -G TGZ --config CPackConfig.cmake (-G TGZ is for tar.gz generator, there is also -GZIP) -- Source distribution -- "make dist" target is provided. ADDITIONAL MAKE TARGETS: "make install" AND "make test" ---------------------------------------------------------------- install target also provided for Makefile based generators. Installation directory can be controlled using configure-time parameter CMAKE_INSTALL_PREFIX (default is /usr/local. It is also possible to install to non-configured directory, using shell> make install DESTDIR="/some/absolute/path" "make test" runs unit tests (uses CTest for it) "make test-force" runs mysql-test-run.pl tests with --test-force parameter FOR PROGRAMMERS: WRITING PLATFORM CHECKS -------------------------------------------------------------- If you modify MySQL source and want to add a new platform check,please read http://www.vtk.org/Wiki/CMake_HowToDoPlatformChecks first. In MySQL, most of the platform tests are implemented in configure.cmake and the template header file is config.h.cmake Bigger chunks of functionality, for example non-trivial macros are implemented in files /cmake subdirectory. For people with autotools background, it is important to remember CMake does not provide autoheader functionality. That is, when you add a check CHECK_FUNCTION_EXISTS(foo HAVE_FOO) to config.cmake, then you will also need to add #cmakedefine HAVE_FOO 1 to config.h.cmake Troubleshooting platform checks -------------------------------- If you suspect that a platform check returned wrong result, examine /CMakeFiles/CMakeError.log and /CMakeFiles/CMakeOutput.log These files they contain compiler command line, and exact error messages. Troubleshooting CMake code ---------------------------------- While there are advanced flags for cmake like -debug-trycompile and --trace, a simple and efficient way to debug to add MESSAGE("interesting variable=${some_invariable}") to the interesting places in CMakeLists.txt Tips: - When using Makefile generator it is easy to examine which compiler flags are used to build. For example, compiler flags for mysqld are in /sql/CMakeFiles/mysqld.dir/flags.make and the linker command line is in /sql/CMakeFiles/mysqld.dir/link.txt - CMake caches results of platform checks in CMakeCache.txt. It is a nice feature because tests do not rerun when reconfiguring (e.g when a new test was added).The downside of caching is that when a platform test was wrong and was later corrected, the cached result is still used. If you encounter this situation, which should be a rare occation, you need either to remove the offending entry from CMakeCache.txt (if test was for HAVE_FOO, remove lines containing HAVE_FOO from CMakeCache.txt) or just remove the cache file.