check_include_file("stddef.h" HAVE_STDDEF_H)\r
check_include_file("stdint.h" HAVE_STDINT_H)\r
check_include_file("stdlib.h" HAVE_STDLIB_H)\r
-check_include_file("strerror.h" NEED_STRERROR_H)\r
check_include_file("strings.h" HAVE_STRINGS_H)\r
check_include_file("string.h" HAVE_STRING_H)\r
check_include_file("sys/ioctl.h" HAVE_SYS_IOCTL_H)\r