Check if the function exists.
CHECK_LIBRARY_EXISTS(LIBRARY FUNCTION LOCATION VARIABLE)
LIBRARY - the name of the library you are looking for FUNCTION - the name of the function LOCATION - location where the library should be found VARIABLE - variable to store the result Will be created as an internal cache variable.
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 = list of options to pass to link command CMAKE_REQUIRED_LIBRARIES = list of libraries to link CMAKE_REQUIRED_QUIET = execute quietly without messages
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