CheckVariableExists¶
Check if the variable exists.
- CHECK_VARIABLE_EXISTS¶
- CHECK_VARIABLE_EXISTS(VAR VARIABLE) - VAR - the name of the variable VARIABLE - variable to store the result Will be created as an internal cache variable.- This macro is only for - Cvariables.
The following variables may be set before calling this macro to modify the way the check is run:
- CMAKE_REQUIRED_FLAGS
- string of compile command line flags. 
- CMAKE_REQUIRED_DEFINITIONS
- list of macros to define (-DFOO=bar). 
- CMAKE_REQUIRED_LINK_OPTIONS
- New in version 3.14: list of options to pass to link command. 
- CMAKE_REQUIRED_LIBRARIES
- list of libraries to link. 
- CMAKE_REQUIRED_QUIET
- New in version 3.1: execute quietly without messages. 
