+ getopt.h sys/ipc.h sys/shm.h popt.h grp.h arpa/inet.h \
+ netdb.h netinet/in.h paths.h stddef.h sys/file.h sys/ioctl.h \
+ sys/mount.h sys/param.h sys/time.h
+])
+
+# Basic functions check
+AC_CHECK_FUNCS([ \
+ atexit bzero clock_gettime dup2 fdatasync ftruncate \
+ gethostbyname gethostname getpagesize localtime_r memchr memset \
+ mkdir munmap putenv realpath rmdir socket strchr strcspn strdup \
+ strncasecmp strndup strpbrk strrchr strstr strtol strtoul \
+ strtoull \