CHECK_INCLUDE_FILES(sys/param.h HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILES(sys/ioctl.h HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILES(fcntl.h HAVE_FCNTL_H)
-CHECK_INCLUDE_FILES(errno.h HAVE_ERRNO_H)
CHECK_INCLUDE_FILES(usbhid.h HAVE_USBHID_H)
CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
-CHECK_FUNCTION_EXISTS(vfprintf HAVE_VFPRINTF)
-CHECK_FUNCTION_EXISTS(_doprnt HAVE_DOPRNT)
CHECK_FUNCTION_EXISTS(XParseGeometry HAVE_XPARSEGEOMETRY)
IF (NOT HAVE_XPARSEGEOMETRY)
LIST(APPEND FREEGLUT_SRCS