#Cmake generator how to#
#Cmake generator generator#
#Cmake generator code#

$ 1 if all of the feature features are available for the ahead a If the policy was not set, the warning message for the $ 1 if the policy pol was NEW when the ahead a target was created,Įlse 0. $ 1 if the version of the CXX compiler matches ver, otherwise 0. See also the CMAKE_COMPILER_VERSION variable. $ 1 if the version of the C compiler matches ver, otherwise 0. $ 1 if v1 is a version greater than or equal to v2, else 0. $ 1 if v1 is a version less than or equal to v2, else 0. $ 1 if v1 is the same version as v2, else 0. $ 1 if v1 is a version greater than v2, else 0. $ 1 if v1 is a version less than v2, else 0. $ 1 if the CMake-id of the CXX compiler matches comp, otherwise 0. $ 1 if the CMake-id of the C compiler matches comp, otherwise 0. $ 1 if the CMake-id of the platform matches comp, otherwise 0. Sidered by this expression when it is evaluated on a property on The mapping in MAP_IMPORTED_CONFIG_ is also con. if ? is 0 $ 1 if a is STREQUAL b, else 0 $ 1 if a is EQUAL b in a numeric comparison, else 0 $ 1 if a is IN_LIST b, else 0 $ 1 if tgt is an existed target name, else 0. $ 0 if all ? are 0, else 1 $ 0 if ? is 1, else 1 $ true-value. The ? must always be either 0 or 1 in boolean expressions. is true, else 0 $ 1 if all ? are 1, else 0 Sions evaluate to either 0 or 1, they can be composed to create condi. The basicĮxpressions are the 0 and 1 expressions. Logical expressions are used to create conditional output. Properties, platform information or any other queryable information. The conditions may be based on the build configuration, target Tions used when compiling, and conditional include directories and This means that they enable conditional linking, conditional defini. Those properties, such as target_link_libraries(), tar- get_include_directories(), target_compile_definitions() and others. They may also be used when using commands to populate Ties, such as LINK_LIBRARIES, INCLUDE_DIRECTORIES, COMPILE_DEFINITIONSĪnd others.

#Cmake generator generator#

Generator expressions are allowed in the context of many target proper. Produce information specific to each build configuration. Generator expressions are evaluated during build system generation to CMake error at CMakeLists.Cmake-generator-expressions(7) CMake cmake-generator-expressions(7)Ĭmake-generator-expressions - CMake Generator Expressions.What is the idiomatic way in CMAKE to add the -fPIC compiler option?.How do I make CMake output into a 'bin' dir?.How do I add a linker or compile flag in a CMake file?.

#Cmake generator how to#

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#Cmake generator code#

CMake generator expression, differentiate C / C++ code.

file(GENERATEĬMake doesn't pick up INTERFACE_INCLUDE_DIRECTORIES of linked library With the TARGET_PROPERTY generator expression you could do a lot of things e.g. Modern way to set compiler flags in cross-platform cmake project DEBUG or RELEASE configurations add_compile_options('$:/MDd>')įor Cmake, can you modify the release/debug compiler flags with `add_compiler_flags()` command? How do I add external test files to a cmake project Here are examples where I use generator expressions in my project:Ĭopying files next to the executable (in multi-configuration environments you can't just use variables like CMAKE_CURRENT_BINARY_DIR) add_custom_command(ĬMake post-build-event: copy compiled libraries add_custom_command( Or more generally any target property that the generator evaluates to mingle together the compiler/linker calls.The name and path of target outputs (mainly when cross-compiling and in multi-configuration environments).So basically the generator expressions are for everything only the generator could know:

CMake does first parse the CMakeLists.txt files in your project - named 'Configuration Phase' - and then it generates your build environment - named 'Generation Phase'.