CheckIncludeFiles

Provides a macro to check if a list of one or more header files can be included together.

CHECK_INCLUDE_FILES

CHECK_INCLUDE_FILES("<includes>" <variable> [LANGUAGE <language>])

Check if the given <includes> list may be included together in a source file and store the result in an internal cache entry named <variable>. Specify the <includes> argument as a ;-list of header file names.

If LANGUAGE is set, the specified compiler will be used to perform the check. Acceptable values are C and CXX. If not set, the C compiler will be used if enabled. If the C compiler is not enabled, the C++ compiler will be used if enabled.

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_INCLUDES

list of include directories

CMAKE_REQUIRED_LIBRARIES

A list of libraries to link. See policy CMP0075.

CMAKE_REQUIRED_QUIET

execute quietly without messages

See modules CheckIncludeFile and CheckIncludeFileCXX to check for a single header file in C or CXX languages.