Provides a macro to check if a list of one or more header files can be included together in C.
CHECK_INCLUDE_FILES("<includes>" <variable>)
Check if the given <includes> list may be included together in a C source file and store the result in an internal cache entry named <variable>. Specify the <includes> argument as a ;-list of header file names.
The following variables may be set before calling this macro to modify the way the check is run:
See modules CheckIncludeFile and CheckIncludeFileCXX to check for a single header file in C or CXX languages.