-dnl Checks for library functions.
-AC_CHECK_FUNCS(arc4random b64_ntop bcopy bindresvport_sa \
- clock fchmod fchown freeaddrinfo futimes gai_strerror \
- getaddrinfo getcwd getgrouplist getnameinfo getopt getpeereid\
- getrlimit getrusage getttyent glob inet_aton inet_ntoa \
- inet_ntop innetgr login_getcapbool md5_crypt memmove \
- mkdtemp mmap ngetaddrinfo openpty ogetaddrinfo readpassphrase \
- realpath recvmsg rresvport_af sendmsg setdtablesize setegid \
- setenv seteuid setgroups setlogin setproctitle setresgid setreuid \
- setrlimit setsid setpcred setvbuf sigaction sigvec snprintf \
- socketpair strerror strlcat strlcpy strmode strsep sysconf tcgetpgrp \
- truncate utimes vhangup vsnprintf waitpid __b64_ntop _getpty)
+dnl Checks for library functions. Please keep in alphabetical order
+AC_CHECK_FUNCS(\
+ arc4random __b64_ntop b64_ntop __b64_pton b64_pton basename bcopy \
+ bindresvport_sa clock fchmod fchown freeaddrinfo futimes \
+ gai_strerror getaddrinfo getcwd getgrouplist getnameinfo getopt \
+ getpeereid _getpty getrlimit getrusage getttyent glob inet_aton \
+ inet_ntoa inet_ntop innetgr login_getcapbool md5_crypt memmove \
+ mkdtemp mmap ngetaddrinfo nsleep ogetaddrinfo openpty pstat \
+ readpassphrase realpath recvmsg rresvport_af sendmsg setdtablesize \
+ setegid setenv seteuid setgroups setlogin setpcred setproctitle \
+ setresgid setreuid setrlimit setsid setvbuf sigaction sigvec \
+ snprintf socketpair strerror strlcat strlcpy strmode strnvis \
+ sysconf tcgetpgrp truncate utimes vhangup vsnprintf waitpid \
+)
+
+AC_SEARCH_LIBS(nanosleep, rt posix4, AC_DEFINE(HAVE_NANOSLEEP))
+
+dnl Make sure strsep prototype is defined before defining HAVE_STRSEP
+AC_CHECK_DECL(strsep, [AC_CHECK_FUNCS(strsep)])