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BUILD-CMAKE
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BUILD-CMAKE
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Copyright (c) 2009, 2010 Sun Microsystems, Inc.
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 <source-root>/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 <src-root>/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
<build-root>/CMakeFiles/CMakeError.log and
<build-root>/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
<build-root>/sql/CMakeFiles/mysqld.dir/flags.make and the linker command line
is in <build-root>/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.