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_FLAGSstring of compile command line flags.
CMAKE_REQUIRED_DEFINITIONSlist of macros to define (-DFOO=bar).
CMAKE_REQUIRED_LINK_OPTIONSNew in version 3.14: list of options to pass to link command.
CMAKE_REQUIRED_LIBRARIESlist of libraries to link.
CMAKE_REQUIRED_QUIETNew in version 3.1: execute quietly without messages.