cmakevars(1)cmakevars(1)NAMEcmakevars - Reference of CMake variables.
VARIABLES THAT PROVIDE INFORMATION
variables defined by cmake, that give information about the project,
and cmake
CMAKE_AR
Name of archiving tool for static libraries.
This specifies name of the program that creates archive or
static libraries.
CMAKE_BINARY_DIR
The path to the top level of the build tree.
This is the full path to the top level of the current CMake
build tree. For an in-source build, this would be the same as
CMAKE_SOURCE_DIR.
CMAKE_BUILD_TOOL
Tool used for the actual build process.
This variable is set to the program that will be needed to build
the output of CMake. If the generator selected was Visual Stu‐
dio 6, the CMAKE_MAKE_PROGRAM will be set to msdev, for Unix
makefiles it will be set to make or gmake, and for Visual Studio
7 it set to devenv. For Nmake Makefiles the value is nmake.
This can be useful for adding special flags and commands based
on the final build environment.
CMAKE_CACHEFILE_DIR
The directory with the CMakeCache.txt file.
This is the full path to the directory that has the CMake‐
Cache.txt file in it. This is the same as CMAKE_BINARY_DIR.
CMAKE_CACHE_MAJOR_VERSION
Major version of CMake used to create the CMakeCache.txt file
This is stores the major version of CMake used to write a CMake
cache file. It is only different when a different version of
CMake is run on a previously created cache file.
CMAKE_CACHE_MINOR_VERSION
Minor version of CMake used to create the CMakeCache.txt file
This is stores the minor version of CMake used to write a CMake
cache file. It is only different when a different version of
CMake is run on a previously created cache file.
CMAKE_CACHE_PATCH_VERSION
Patch version of CMake used to create the CMakeCache.txt file
This is stores the patch version of CMake used to write a CMake
cache file. It is only different when a different version of
CMake is run on a previously created cache file.
CMAKE_CFG_INTDIR
Build-time reference to per-configuration output subdirectory.
For native build systems supporting multiple configurations in
the build tree (such as Visual Studio and Xcode), the value is a
reference to a build-time variable specifying the name of the
per-configuration output subdirectory. On Makefile generators
this evaluates to "." because there is only one configuration in
a build tree. Example values:
$(IntDir) = Visual Studio 6
$(OutDir) = Visual Studio 7, 8, 9
$(Configuration) = Visual Studio 10
$(CONFIGURATION) = Xcode
. = Make-based tools
Since these values are evaluated by the native build system,
this variable is suitable only for use in command lines that
will be evaluated at build time. Example of intended usage:
add_executable(mytool mytool.c)
add_custom_command(
OUTPUT out.txt
COMMAND ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/mytool
${CMAKE_CURRENT_SOURCE_DIR}/in.txt out.txt
DEPENDS mytool in.txt
)
add_custom_target(drive ALL DEPENDS out.txt)
Note that CMAKE_CFG_INTDIR is no longer necessary for this pur‐
pose but has been left for compatibility with existing projects.
Instead add_custom_command() recognizes executable target names
in its COMMAND option, so "${CMAKE_CUR‐
RENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/mytool" can be replaced by
just "mytool".
This variable is read-only. Setting it is undefined behavior.
In multi-configuration build systems the value of this variable
is passed as the value of preprocessor symbol "CMAKE_INTDIR" to
the compilation of all source files.
CMAKE_COMMAND
The full path to the cmake executable.
This is the full path to the CMake executable cmake which is
useful from custom commands that want to use the cmake -E option
for portable system commands. (e.g. /usr/local/bin/cmake
CMAKE_CROSSCOMPILING
Is CMake currently cross compiling.
This variable will be set to true by CMake if CMake is cross
compiling. Specifically if the build platform is different from
the target platform.
CMAKE_CTEST_COMMAND
Full path to ctest command installed with cmake.
This is the full path to the CTest executable ctest which is
useful from custom commands that want to use the cmake -E
option for portable system commands.
CMAKE_CURRENT_BINARY_DIR
The path to the binary directory currently being processed.
This the full path to the build directory that is currently
being processed by cmake. Each directory added by add_subdirec‐
tory will create a binary directory in the build tree, and as it
is being processed this variable will be set. For in-source
builds this is the current source directory being processed.
CMAKE_CURRENT_LIST_FILE
Full path to the listfile currently being processed.
As CMake processes the listfiles in your project this variable
will always be set to the one currently being processed. The
value has dynamic scope. When CMake starts processing commands
in a source file it sets this variable to the location of the
file. When CMake finishes processing commands from the file it
restores the previous value. Therefore the value of the vari‐
able inside a macro or function is the file invoking the bot‐
tom-most entry on the call stack, not the file containing the
macro or function definition.
See also CMAKE_PARENT_LIST_FILE.
CMAKE_CURRENT_LIST_LINE
The line number of the current file being processed.
This is the line number of the file currently being processed by
cmake.
CMAKE_CURRENT_SOURCE_DIR
The path to the source directory currently being processed.
This the full path to the source directory that is currently
being processed by cmake.
CMAKE_DL_LIBS
Name of library containing dlopen and dlcose.
The name of the library that has dlopen and dlclose in it, usu‐
ally -ldl on most UNIX machines.
CMAKE_EDIT_COMMAND
Full path to cmake-gui or ccmake.
This is the full path to the CMake executable that can graphi‐
cally edit the cache. For example, cmake-gui, ccmake, or cmake
-i.
CMAKE_EXECUTABLE_SUFFIX
The suffix for executables on this platform.
The suffix to use for the end of an executable if any, .exe on
Windows.
CMAKE_EXECUTABLE_SUFFIX_<LANG> overrides this for language
<LANG>.
CMAKE_EXTRA_GENERATOR
The extra generator used to build the project.
When using the Eclipse, CodeBlocks or KDevelop generators, CMake
generates Makefiles (CMAKE_GENERATOR) and additionally project
files for the respective IDE. This IDE project file generator is
stored in CMAKE_EXTRA_GENERATOR (e.g. "Eclipse CDT4").
CMAKE_EXTRA_SHARED_LIBRARY_SUFFIXES
Additional suffixes for shared libraries.
Extensions for shared libraries other than that specified by
CMAKE_SHARED_LIBRARY_SUFFIX, if any. CMake uses this to recog‐
nize external shared library files during analysis of libraries
linked by a target.
CMAKE_GENERATOR
The generator used to build the project.
The name of the generator that is being used to generate the
build files. (e.g. "Unix Makefiles", "Visual Studio 6", etc.)
CMAKE_HOME_DIRECTORY
Path to top of source tree.
This is the path to the top level of the source tree.
CMAKE_IMPORT_LIBRARY_PREFIX
The prefix for import libraries that you link to.
The prefix to use for the name of an import library if used on
this platform.
CMAKE_IMPORT_LIBRARY_PREFIX_<LANG> overrides this for language
<LANG>.
CMAKE_IMPORT_LIBRARY_SUFFIX
The suffix for import libraries that you link to.
The suffix to use for the end of an import library if used on
this platform.
CMAKE_IMPORT_LIBRARY_SUFFIX_<LANG> overrides this for language
<LANG>.
CMAKE_LINK_LIBRARY_SUFFIX
The suffix for libraries that you link to.
The suffix to use for the end of a library, .lib on Windows.
CMAKE_MAJOR_VERSION
The Major version of cmake (i.e. the 2 in 2.X.X)
This specifies the major version of the CMake executable being
run.
CMAKE_MAKE_PROGRAM
See CMAKE_BUILD_TOOL.
This variable is around for backwards compatibility, see
CMAKE_BUILD_TOOL.
CMAKE_MINOR_VERSION
The Minor version of cmake (i.e. the 4 in X.4.X).
This specifies the minor version of the CMake executable being
run.
CMAKE_PARENT_LIST_FILE
Full path to the parent listfile of the one currently being pro‐
cessed.
As CMake processes the listfiles in your project this variable
will always be set to the listfile that included or somehow
invoked the one currently being processed. See also CMAKE_CUR‐
RENT_LIST_FILE.
CMAKE_PATCH_VERSION
The patch version of cmake (i.e. the 3 in X.X.3).
This specifies the patch version of the CMake executable being
run.
CMAKE_PROJECT_NAME
The name of the current project.
This specifies name of the current project from the closest
inherited PROJECT command.
CMAKE_RANLIB
Name of randomizing tool for static libraries.
This specifies name of the program that randomizes libraries on
UNIX, not used on Windows, but may be present.
CMAKE_ROOT
Install directory for running cmake.
This is the install root for the running CMake and the Modules
directory can be found here. This is commonly used in this for‐
mat: ${CMAKE_ROOT}/Modules
CMAKE_SHARED_LIBRARY_PREFIX
The prefix for shared libraries that you link to.
The prefix to use for the name of a shared library, lib on UNIX.
CMAKE_SHARED_LIBRARY_PREFIX_<LANG> overrides this for language
<LANG>.
CMAKE_SHARED_LIBRARY_SUFFIX
The suffix for shared libraries that you link to.
The suffix to use for the end of a shared library, .dll on Win‐
dows.
CMAKE_SHARED_LIBRARY_SUFFIX_<LANG> overrides this for language
<LANG>.
CMAKE_SHARED_MODULE_PREFIX
The prefix for loadable modules that you link to.
The prefix to use for the name of a loadable module on this
platform.
CMAKE_SHARED_MODULE_PREFIX_<LANG> overrides this for language
<LANG>.
CMAKE_SHARED_MODULE_SUFFIX
The suffix for shared libraries that you link to.
The suffix to use for the end of a loadable module on this plat‐
form
CMAKE_SHARED_MODULE_SUFFIX_<LANG> overrides this for language
<LANG>.
CMAKE_SIZEOF_VOID_P
Size of a void pointer.
This is set to the size of a pointer on the machine, and is
determined by a try compile. If a 64 bit size is found, then the
library search path is modified to look for 64 bit libraries
first.
CMAKE_SKIP_RPATH
If true, do not add run time path information.
If this is set to TRUE, then the rpath information is not added
to compiled executables. The default is to add rpath informa‐
tion if the platform supports it.This allows for easy running
from the build tree.
CMAKE_SOURCE_DIR
The path to the top level of the source tree.
This is the full path to the top level of the current CMake
source tree. For an in-source build, this would be the same as
CMAKE_BINARY_DIR.
CMAKE_STANDARD_LIBRARIES
Libraries linked into every executable and shared library.
This is the list of libraries that are linked into all executa‐
bles and libraries.
CMAKE_STATIC_LIBRARY_PREFIX
The prefix for static libraries that you link to.
The prefix to use for the name of a static library, lib on UNIX.
CMAKE_STATIC_LIBRARY_PREFIX_<LANG> overrides this for language
<LANG>.
CMAKE_STATIC_LIBRARY_SUFFIX
The suffix for static libraries that you link to.
The suffix to use for the end of a static library, .lib on Win‐
dows.
CMAKE_STATIC_LIBRARY_SUFFIX_<LANG> overrides this for language
<LANG>.
CMAKE_USING_VC_FREE_TOOLS
True if free visual studio tools being used.
This is set to true if the compiler is Visual Studio free tools.
CMAKE_VERBOSE_MAKEFILE
Create verbose makefiles if on.
This variable defaults to false. You can set this variable to
true to make CMake produce verbose makefiles that show each com‐
mand line as it is used.
CMAKE_VERSION
The full version of cmake in major.minor.patch format.
This specifies the full version of the CMake executable being
run. This variable is defined by versions 2.6.3 and higher.
See variables CMAKE_MAJOR_VERSION, CMAKE_MINOR_VERSION, and
CMAKE_PATCH_VERSION for individual version components.
PROJECT_BINARY_DIR
Full path to build directory for project.
This is the binary directory of the most recent PROJECT command.
PROJECT_NAME
Name of the project given to the project command.
This is the name given to the most recent PROJECT command.
PROJECT_SOURCE_DIR
Top level source directory for the current project.
This is the source directory of the most recent PROJECT command.
[Project name]_BINARY_DIR
Top level binary directory for the named project.
A variable is created with the name used in the PROJECT command,
and is the binary directory for the project. This can be use‐
ful when SUBDIR is used to connect several projects.
[Project name]_SOURCE_DIR
Top level source directory for the named project.
A variable is created with the name used in the PROJECT command,
and is the source directory for the project. This can be use‐
ful when add_subdirectory is used to connect several projects.
VARIABLES THAT CHANGE BEHAVIOR
BUILD_SHARED_LIBS
Global flag to cause add_library to create shared libraries if
on.
If present and true, this will cause all libraries to be built
shared unless the library was explicitly added as a static
library. This variable is often added to projects as an OPTION
so that each user of a project can decide if they want to build
the project using shared or static libraries.
CMAKE_BACKWARDS_COMPATIBILITY
Version of cmake required to build project
From the point of view of backwards compatibility, this speci‐
fies what version of CMake should be supported. By default this
value is the version number of CMake that you are running. You
can set this to an older version of CMake to support deprecated
commands of CMake in projects that were written to use older
versions of CMake. This can be set by the user or set at the
beginning of a CMakeLists file.
CMAKE_BUILD_TYPE
Specifies the build type for make based generators.
This specifies what build type will be built in this tree. Pos‐
sible values are empty, Debug, Release, RelWithDebInfo and Min‐
SizeRel. This variable is only supported for make based genera‐
tors. If this variable is supported, then CMake will also pro‐
vide initial values for the variables with the name
CMAKE_C_FLAGS_[Debug|Release|RelWithDebInfo|MinSizeRel]. For
example, if CMAKE_BUILD_TYPE is Debug, then CMAKE_C_FLAGS_DEBUG
will be added to the CMAKE_C_FLAGS.
CMAKE_COLOR_MAKEFILE
Enables color output when using the Makefile generator.
When enabled, the generated Makefiles will produce colored out‐
put. Default is ON.
CMAKE_CONFIGURATION_TYPES
Specifies the available build types.
This specifies what build types will be available such as Debug,
Release, RelWithDebInfo etc. This has reasonable defaults on
most platforms. But can be extended to provide other build
types. See also CMAKE_BUILD_TYPE.
CMAKE_FIND_LIBRARY_PREFIXES
Prefixes to prepend when looking for libraries.
This specifies what prefixes to add to library names when the
find_library command looks for libraries. On UNIX systems this
is typically lib, meaning that when trying to find the foo
library it will look for libfoo.
CMAKE_FIND_LIBRARY_SUFFIXES
Suffixes to append when looking for libraries.
This specifies what suffixes to add to library names when the
find_library command looks for libraries. On Windows systems
this is typically .lib and .dll, meaning that when trying to
find the foo library it will look for foo.dll etc.
CMAKE_INCLUDE_PATH
Path used for searching by FIND_FILE() and FIND_PATH().
Specifies a path which will be used both by FIND_FILE() and
FIND_PATH(). Both commands will check each of the contained
directories for the existence of the file which is currently
searched. By default it is empty, it is intended to be set by
the project. See also CMAKE_SYSTEM_INCLUDE_PATH, CMAKE_PRE‐
FIX_PATH.
CMAKE_INSTALL_PREFIX
Install directory used by install.
If "make install" is invoked or INSTALL is built, this directory
is pre-pended onto all install directories. This variable
defaults to /usr/local on UNIX and c:/Program Files on Windows.
CMAKE_LIBRARY_PATH
Path used for searching by FIND_LIBRARY().
Specifies a path which will be used by FIND_LIBRARY().
FIND_LIBRARY() will check each of the contained directories for
the existence of the library which is currently searched. By
default it is empty, it is intended to be set by the project.
See also CMAKE_SYSTEM_LIBRARY_PATH, CMAKE_PREFIX_PATH.
CMAKE_MFC_FLAG
Tell cmake to use MFC for an executable or dll.
This can be set in a CMakeLists.txt file and will enable MFC in
the application. It should be set to 1 for static the static
MFC library, and 2 for the shared MFC library. This is used in
visual studio 6 and 7 project files. The CMakeSetup dialog
used MFC and the CMakeLists.txt looks like this:
add_definitions(-D_AFXDLL)
set(CMAKE_MFC_FLAG 2)
add_executable(CMakeSetup WIN32 ${SRCS})
CMAKE_MODULE_PATH
List of directories to search for CMake modules.
Commands like include() and find_package() search for files in
directories listed by this variable before checking the default
modules that come with CMake.
CMAKE_NOT_USING_CONFIG_FLAGS
Skip _BUILD_TYPE flags if true.
This is an internal flag used by the generators in CMake to tell
CMake to skip the _BUILD_TYPE flags.
CMAKE_PREFIX_PATH
Path used for searching by FIND_XXX(), with appropriate suffixes
added.
Specifies a path which will be used by the FIND_XXX() commands.
It contains the "base" directories, the FIND_XXX() commands
append appropriate subdirectories to the base directories. So
FIND_PROGRAM() adds /bin to each of the directories in the path,
FIND_LIBRARY() appends /lib to each of the directories, and
FIND_PATH() and FIND_FILE() append /include . By default it is
empty, it is intended to be set by the project. See also
CMAKE_SYSTEM_PREFIX_PATH, CMAKE_INCLUDE_PATH,
CMAKE_LIBRARY_PATH, CMAKE_PROGRAM_PATH.
CMAKE_PROGRAM_PATH
Path used for searching by FIND_PROGRAM().
Specifies a path which will be used by FIND_PROGRAM(). FIND_PRO‐
GRAM() will check each of the contained directories for the
existence of the program which is currently searched. By default
it is empty, it is intended to be set by the project. See also
CMAKE_SYSTEM_PROGRAM_PATH, CMAKE_PREFIX_PATH.
CMAKE_SKIP_INSTALL_ALL_DEPENDENCY
Don't make the install target depend on the all target.
By default, the "install" target depends on the "all" target.
This has the effect, that when "make install" is invoked or
INSTALL is built, first the "all" target is built, then the
installation starts. If CMAKE_SKIP_INSTALL_ALL_DEPENDENCY is set
to TRUE, this dependency is not created, so the installation
process will start immediately, independent from whether the
project has been completely built or not.
CMAKE_SYSTEM_INCLUDE_PATH
Path used for searching by FIND_FILE() and FIND_PATH().
Specifies a path which will be used both by FIND_FILE() and
FIND_PATH(). Both commands will check each of the contained
directories for the existence of the file which is currently
searched. By default it contains the standard directories for
the current system. It is NOT intended to be modified by the
project, use CMAKE_INCLUDE_PATH for this. See also CMAKE_SYS‐
TEM_PREFIX_PATH.
CMAKE_SYSTEM_LIBRARY_PATH
Path used for searching by FIND_LIBRARY().
Specifies a path which will be used by FIND_LIBRARY().
FIND_LIBRARY() will check each of the contained directories for
the existence of the library which is currently searched. By
default it contains the standard directories for the current
system. It is NOT intended to be modified by the project, use
CMAKE_SYSTEM_LIBRARY_PATH for this. See also CMAKE_SYSTEM_PRE‐
FIX_PATH.
CMAKE_SYSTEM_PREFIX_PATH
Path used for searching by FIND_XXX(), with appropriate suffixes
added.
Specifies a path which will be used by the FIND_XXX() commands.
It contains the "base" directories, the FIND_XXX() commands
append appropriate subdirectories to the base directories. So
FIND_PROGRAM() adds /bin to each of the directories in the path,
FIND_LIBRARY() appends /lib to each of the directories, and
FIND_PATH() and FIND_FILE() append /include . By default this
contains the standard directories for the current system. It is
NOT intended to be modified by the project, use CMAKE_PRE‐
FIX_PATH for this. See also CMAKE_SYSTEM_INCLUDE_PATH,
CMAKE_SYSTEM_LIBRARY_PATH, CMAKE_SYSTEM_PROGRAM_PATH.
CMAKE_SYSTEM_PROGRAM_PATH
Path used for searching by FIND_PROGRAM().
Specifies a path which will be used by FIND_PROGRAM(). FIND_PRO‐
GRAM() will check each of the contained directories for the
existence of the program which is currently searched. By default
it contains the standard directories for the current system. It
is NOT intended to be modified by the project, use CMAKE_PRO‐
GRAM_PATH for this. See also CMAKE_SYSTEM_PREFIX_PATH.
CMAKE_USER_MAKE_RULES_OVERRIDE
Specify a file that can change the build rule variables.
If this variable is set, it should to point to a CMakeLists.txt
file that will be read in by CMake after all the system settings
have been set, but before they have been used. This would allow
you to override any variables that need to be changed for some
special project.
VARIABLES THAT DESCRIBE THE SYSTEM
APPLE True if running on Mac OSX.
Set to true on Mac OSX.
BORLAND
True of the borland compiler is being used.
This is set to true if the Borland compiler is being used.
CMAKE_CL_64
Using the 64 bit compiler from Microsoft
Set to true when using the 64 bit cl compiler from Microsoft.
CMAKE_COMPILER_2005
Using the Visual Studio 2005 compiler from Microsoft
Set to true when using the Visual Studio 2005 compiler from Mi‐
crosoft.
CMAKE_HOST_APPLE
True for Apple OSXoperating systems.
Set to true when the host system is Apple OSX.
CMAKE_HOST_SYSTEM
Name of system cmake is being run on.
The same as CMAKE_SYSTEM but for the host system instead of the
target system when cross compiling.
CMAKE_HOST_SYSTEM_NAME
Name of the OS CMake is running on.
The same as CMAKE_SYSTEM_NAME but for the host system instead of
the target system when cross compiling.
CMAKE_HOST_SYSTEM_PROCESSOR
The name of the CPU CMake is running on.
The same as CMAKE_SYSTEM_PROCESSOR but for the host system
instead of the target system when cross compiling.
CMAKE_HOST_SYSTEM_VERSION
OS version CMake is running on.
The same as CMAKE_SYSTEM_VERSION but for the host system instead
of the target system when cross compiling.
CMAKE_HOST_UNIX
True for UNIX and UNIX like operating systems.
Set to true when the host system is UNIX or UNIX like (i.e.
APPLE and CYGWIN).
CMAKE_HOST_WIN32
True on windows systems, including win64.
Set to true when the host system is Windows and on cygwin.
CMAKE_OBJECT_PATH_MAX
Maximum object file full-path length allowed by native build
tools.
CMake computes for every source file an object file name that is
unique to the source file and deterministic with respect to the
full path to the source file. This allows multiple source files
in a target to share the same name if they lie in different
directories without rebuilding when one is added or removed.
However, it can produce long full paths in a few cases, so CMake
shortens the path using a hashing scheme when the full path to
an object file exceeds a limit. CMake has a built-in limit for
each platform that is sufficient for common tools, but some
native tools may have a lower limit. This variable may be set
to specify the limit explicitly. The value must be an integer
no less than 128.
CMAKE_SYSTEM
Name of system cmake is compiling for.
This variable is the composite of CMAKE_SYSTEM_NAME and
CMAKE_SYSTEM_VERSION, like this ${CMAKE_SYS‐
TEM_NAME}-${CMAKE_SYSTEM_VERSION}. If CMAKE_SYSTEM_VERSION is
not set, then CMAKE_SYSTEM is the same as CMAKE_SYSTEM_NAME.
CMAKE_SYSTEM_NAME
Name of the OS CMake is building for.
This is the name of the operating system on which CMake is tar‐
geting. On systems that have the uname command, this variable
is set to the output of uname -s. Linux, Windows, and Darwin
for Mac OSX are the values found on the big three operating
systems.
CMAKE_SYSTEM_PROCESSOR
The name of the CPU CMake is building for.
On systems that support uname, this variable is set to the out‐
put of uname -p, on windows it is set to the value of the envi‐
ronment variable PROCESSOR_ARCHITECTURE
CMAKE_SYSTEM_VERSION
OS version CMake is building for.
A numeric version string for the system, on systems that support
uname, this variable is set to the output of uname -r. On other
systems this is set to major-minor version numbers.
CYGWIN True for cygwin.
Set to true when using CYGWIN.
MSVC True when using Microsoft Visual C
Set to true when the compiler is some version of Microsoft Vis‐
ual C.
MSVC80 True when using Microsoft Visual C 8.0
Set to true when the compiler is version 8.0 of Microsoft Visual
C.
MSVC_IDE
True when using the Microsoft Visual C IDE
Set to true when the target platform is the Microsoft Visual C
IDE, as opposed to the command line compiler.
MSVC_VERSION
The version of Microsoft Visual C/C++ being used if any.
The version of Microsoft Visual C/C++ being used if any. For
example 1300 is MSVC 6.0.
UNIX True for UNIX and UNIX like operating systems.
Set to true when the target system is UNIX or UNIX like (i.e.
APPLE and CYGWIN).
WIN32 True on windows systems, including win64.
Set to true when the target system is Windows and on cygwin.
XCODE_VERSION
Version of Xcode (Xcode generator only).
Under the Xcode generator, this is the version of Xcode as spec‐
ified in "Xcode.app/Contents/version.plist" (such as "3.1.2").
VARIABLES THAT CONTROL THE BUILD
CMAKE_<CONFIG>_POSTFIX
Default filename postfix for libraries under configuration <CON‐
FIG>.
When a non-executable target is created its <CONFIG>_POSTFIX
target property is initialized with the value of this variable
if it is set.
CMAKE_ARCHIVE_OUTPUT_DIRECTORY
Where to put all the ARCHIVE targets when built.
This variable is used to initialize the ARCHIVE_OUTPUT_DIRECTORY
property on all the targets. See that target property for addi‐
tional information.
CMAKE_BUILD_WITH_INSTALL_RPATH
Use the install path for the RPATH
Normally CMake uses the build tree for the RPATH when building
executables etc on systems that use RPATH. When the software is
installed the executables etc are relinked by CMake to have the
install RPATH. If this variable is set to true then the software
is always built with the install path for the RPATH and does not
need to be relinked when installed.
CMAKE_DEBUG_POSTFIX
See variable CMAKE_<CONFIG>_POSTFIX.
This variable is a special case of the more-general CMAKE_<CON‐
FIG>_POSTFIX variable for the DEBUG configuration.
CMAKE_EXE_LINKER_FLAGS
Linker flags used to create executables.
Flags used by the linker when creating an executable.
CMAKE_EXE_LINKER_FLAGS_[CMAKE_BUILD_TYPE]
Flag used when linking an executable.
Same as CMAKE_C_FLAGS_* but used by the linker when creating
executables.
CMAKE_Fortran_MODULE_DIRECTORY
Fortran module output directory.
This variable is used to initialize the Fortran_MODULE_DIRECTORY
property on all the targets. See that target property for addi‐
tional information.
CMAKE_INCLUDE_CURRENT_DIR
Automatically add the current source- and build directories to
the include path.
If this variable is enabled, CMake automatically adds in each
directory ${CMAKE_CURRENT_SOURCE_DIR} and ${CMAKE_CUR‐
RENT_BINARY_DIR} to the include path for this directory. These
additional include directories do not propagate down to subdi‐
rectories. This is useful mainly for out-of-source builds, where
files generated into the build tree are included by files
located in the source tree.
By default CMAKE_INCLUDE_CURRENT_DIR is OFF.
CMAKE_INSTALL_NAME_DIR
Mac OSX directory name for installed targets.
CMAKE_INSTALL_NAME_DIR is used to initialize the
INSTALL_NAME_DIR property on all targets. See that target prop‐
erty for more information.
CMAKE_INSTALL_RPATH
The rpath to use for installed targets.
A semicolon-separated list specifying the rpath to use in
installed targets (for platforms that support it). This is used
to initialize the target property INSTALL_RPATH for all targets.
CMAKE_INSTALL_RPATH_USE_LINK_PATH
Add paths to linker search and installed rpath.
CMAKE_INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to
true will append directories in the linker search path and out‐
side the project to the INSTALL_RPATH. This is used to initial‐
ize the target property INSTALL_RPATH_USE_LINK_PATH for all tar‐
gets.
CMAKE_LIBRARY_OUTPUT_DIRECTORY
Where to put all the LIBRARY targets when built.
This variable is used to initialize the LIBRARY_OUTPUT_DIRECTORY
property on all the targets. See that target property for addi‐
tional information.
CMAKE_LIBRARY_PATH_FLAG
The flag used to add a library search path to a compiler.
The flag used to specify a library directory to the compiler. On
most compilers this is "-L".
CMAKE_LINK_DEF_FILE_FLAG
Linker flag used to specify a .def file for dll creation.
The flag used to add a .def file when creating a dll on Windows,
this is only defined on Windows.
CMAKE_LINK_LIBRARY_FILE_FLAG
Flag used to link a library specified by a path to its file.
The flag used before a library file path is given to the linker.
This is needed only on very few platforms.
CMAKE_LINK_LIBRARY_FLAG
Flag used to link a library into an executable.
The flag used to specify a library to link to an executable. On
most compilers this is "-l".
CMAKE_NO_BUILTIN_CHRPATH
Do not use the builtin ELF editor to fix RPATHs on installation.
When an ELF binary needs to have a different RPATH after instal‐
lation than it does in the build tree, CMake uses a builtin edi‐
tor to change the RPATH in the installed copy. If this variable
is set to true then CMake will relink the binary before instal‐
lation instead of using its builtin editor.
CMAKE_RUNTIME_OUTPUT_DIRECTORY
Where to put all the RUNTIME targets when built.
This variable is used to initialize the RUNTIME_OUTPUT_DIRECTORY
property on all the targets. See that target property for addi‐
tional information.
CMAKE_SKIP_BUILD_RPATH
Do not include RPATHs in the build tree.
Normally CMake uses the build tree for the RPATH when building
executables etc on systems that use RPATH. When the software is
installed the executables etc are relinked by CMake to have the
install RPATH. If this variable is set to true then the software
is always built with no RPATH.
CMAKE_USE_RELATIVE_PATHS
Use relative paths (May not work!).
If this is set to TRUE, then the CMake will use relative paths
between the source and binary tree. This option does not work
for more complicated projects, and relative paths are used when
possible. In general, it is not possible to move CMake gener‐
ated makefiles to a different location regardless of the value
of this variable.
EXECUTABLE_OUTPUT_PATH
Old executable location variable.
The target property RUNTIME_OUTPUT_DIRECTORY supercedes this
variable for a target if it is set. Executable targets are oth‐
erwise placed in this directory.
LIBRARY_OUTPUT_PATH
Old library location variable.
The target properties ARCHIVE_OUTPUT_DIRECTORY, LIBRARY_OUT‐
PUT_DIRECTORY, and RUNTIME_OUTPUT_DIRECTORY supercede this vari‐
able for a target if they are set. Library targets are other‐
wise placed in this directory.
VARIABLES FOR LANGUAGES
CMAKE_<LANG>_ARCHIVE_APPEND
Rule variable to append to a static archive.
This is a rule variable that tells CMake how to append to a
static archive. It is used in place of CMAKE_<LANG>_CRE‐
ATE_STATIC_LIBRARY on some platforms in order to support large
object counts. See also CMAKE_<LANG>_ARCHIVE_CREATE and
CMAKE_<LANG>_ARCHIVE_FINISH.
CMAKE_<LANG>_ARCHIVE_CREATE
Rule variable to create a new static archive.
This is a rule variable that tells CMake how to create a static
archive. It is used in place of CMAKE_<LANG>_CRE‐
ATE_STATIC_LIBRARY on some platforms in order to support large
object counts. See also CMAKE_<LANG>_ARCHIVE_APPEND and
CMAKE_<LANG>_ARCHIVE_FINISH.
CMAKE_<LANG>_ARCHIVE_FINISH
Rule variable to finish an existing static archive.
This is a rule variable that tells CMake how to finish a static
archive. It is used in place of CMAKE_<LANG>_CRE‐
ATE_STATIC_LIBRARY on some platforms in order to support large
object counts. See also CMAKE_<LANG>_ARCHIVE_CREATE and
CMAKE_<LANG>_ARCHIVE_APPEND.
CMAKE_<LANG>_COMPILER
The full path to the compiler for LANG.
This is the command that will be used as the <LANG> compiler.
Once set, you can not change this variable.
CMAKE_<LANG>_COMPILER_ABI
An internal variable subject to change.
This is used in determining the compiler ABI and is subject to
change.
CMAKE_<LANG>_COMPILER_ID
An internal variable subject to change.
This is used in determining the compiler and is subject to
change.
CMAKE_<LANG>_COMPILER_LOADED
Defined to true if the language is enabled.
When language <LANG> is enabled by project() or enable_lan‐
guage() this variable is defined to 1.
CMAKE_<LANG>_COMPILE_OBJECT
Rule variable to compile a single object file.
This is a rule variable that tells CMake how to compile a single
object file for for the language <LANG>.
CMAKE_<LANG>_CREATE_SHARED_LIBRARY
Rule variable to create a shared library.
This is a rule variable that tells CMake how to create a shared
library for the language <LANG>.
CMAKE_<LANG>_CREATE_SHARED_MODULE
Rule variable to create a shared module.
This is a rule variable that tells CMake how to create a shared
library for the language <LANG>.
CMAKE_<LANG>_CREATE_STATIC_LIBRARY
Rule variable to create a static library.
This is a rule variable that tells CMake how to create a static
library for the language <LANG>.
CMAKE_<LANG>_FLAGS_DEBUG
Flags for Debug build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is Debug.
CMAKE_<LANG>_FLAGS_MINSIZEREL
Flags for MinSizeRel build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is MinSizeRel.Short for
minimum size release.
CMAKE_<LANG>_FLAGS_RELEASE
Flags for Release build type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is Release
CMAKE_<LANG>_FLAGS_RELWITHDEBINFO
Flags for RelWithDebInfo type or configuration.
<LANG> flags used when CMAKE_BUILD_TYPE is RelWithDebInfo. Short
for Release With Debug Information.
CMAKE_<LANG>_IGNORE_EXTENSIONS
File extensions that should be ignored by the build.
This is a list of file extensions that may be part of a project
for a given language but are not compiled.
CMAKE_<LANG>_IMPLICIT_INCLUDE_DIRECTORIES
Directories implicitly searched by the compiler for header
files.
CMake does not explicitly specify these directories on compiler
command lines for language <LANG>. This prevents system include
directories from being treated as user include directories on
some compilers.
CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES
Implicit linker search path detected for language <LANG>.
Compilers typically pass directories containing language runtime
libraries and default library search paths when they invoke a
linker. These paths are implicit linker search directories for
the compiler's language. CMake automatically detects these
directories for each language and reports the results in this
variable.
CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES
Implicit link libraries and flags detected for language <LANG>.
Compilers typically pass language runtime library names and
other flags when they invoke a linker. These flags are implicit
link options for the compiler's language. CMake automatically
detects these libraries and flags for each language and reports
the results in this variable.
CMAKE_<LANG>_LINKER_PREFERENCE
Preference value for linker language selection.
The "linker language" for executable, shared library, and module
targets is the language whose compiler will invoke the linker.
The LINKER_LANGUAGE target property sets the language explic‐
itly. Otherwise, the linker language is that whose linker pref‐
erence value is highest among languages compiled and linked into
the target. See also the CMAKE_<LANG>_LINKER_PREFERENCE_PROPA‐
GATES variable.
CMAKE_<LANG>_LINKER_PREFERENCE_PROPAGATES
True if CMAKE_<LANG>_LINKER_PREFERENCE propagates across tar‐
gets.
This is used when CMake selects a linker language for a target.
Languages compiled directly into the target are always consid‐
ered. A language compiled into static libraries linked by the
target is considered if this variable is true.
CMAKE_<LANG>_LINK_EXECUTABLE
Rule variable to link and executable.
Rule variable to link and executable for the given language.
CMAKE_<LANG>_OUTPUT_EXTENSION
Extension for the output of a compile for a single file.
This is the extension for an object file for the given <LANG>.
For example .obj for C on Windows.
CMAKE_<LANG>_PLATFORM_ID
An internal variable subject to change.
This is used in determining the platform and is subject to
change.
CMAKE_<LANG>_SIZEOF_DATA_PTR
Size of pointer-to-data types for language <LANG>.
This holds the size (in bytes) of pointer-to-data types in the
target platform ABI. It is defined for languages C and CXX
(C++).
CMAKE_<LANG>_SOURCE_FILE_EXTENSIONS
Extensions of source files for the given language.
This is the list of extensions for a given languages source
files.
CMAKE_COMPILER_IS_GNU<LANG>
True if the compiler is GNU.
If the selected <LANG> compiler is the GNU compiler then this is
TRUE, if not it is FALSE.
CMAKE_INTERNAL_PLATFORM_ABI
An internal variable subject to change.
This is used in determining the compiler ABI and is subject to
change.
CMAKE_USER_MAKE_RULES_OVERRIDE_<LANG>
Specify a file that can change the build rule variables.
If this variable is set, it should to point to a CMakeLists.txt
file that will be read in by CMake after all the system settings
have been set, but before they have been used. This would allow
you to override any variables that need to be changed for some
language.
COPYRIGHT
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium. All
rights reserved.
Redistribution and use in source and binary forms, with or without mod‐
ification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
Neither the names of Kitware, Inc., the Insight Software Consortium,
nor the names of their contributors may be used to endorse or promote
products derived from this software without specific prior written per‐
mission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTIC‐
ULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
SEE ALSO
The following resources are available to get help using CMake:
Home Page
http://www.cmake.org
The primary starting point for learning about CMake.
Frequently Asked Questions
http://www.cmake.org/Wiki/CMake_FAQ
A Wiki is provided containing answers to frequently asked ques‐
tions.
Online Documentation
http://www.cmake.org/HTML/Documentation.html
Links to available documentation may be found on this web page.
Mailing List
http://www.cmake.org/HTML/MailingLists.html
For help and discussion about using cmake, a mailing list is
provided at cmake@cmake.org. The list is member-post-only but
one may sign up on the CMake web page. Please first read the
full documentation at http://www.cmake.org before posting ques‐
tions to the list.
Summary of helpful links:
Home: http://www.cmake.org
Docs: http://www.cmake.org/HTML/Documentation.html
Mail: http://www.cmake.org/HTML/MailingLists.html
FAQ: http://www.cmake.org/Wiki/CMake_FAQ
cmake 2.8.1 March 21, 2010 cmakevars(1)
