CheckStructHasMember
: Check if the given struct or class has the specified member variableCHECK_STRUCT_HAS_MEMBER (STRUCT MEMBER HEADER VARIABLE)
STRUCT - the name of the struct or class you are interested in
MEMBER - the member which existence you want to check
HEADER - the header(s) where the prototype should be declared
VARIABLE - variable to store the result
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
Example: CHECK_STRUCT_HAS_MEMBER("struct timeval" tv_sec sys/select.h HAVE_TIMEVAL_TV_SEC)