dnl Process this file with autoconf to produce a configure script.AC_INIT(ez-ipupdate.c)AM_CONFIG_HEADER(config.h)AM_INIT_AUTOMAKE(ez-ipupdate,3.0.10)dnl Checks for programs.AC_ARG_PROGRAMAC_PROG_CCAC_PROG_CPPAC_PROG_INSTALLAC_TYPE_SIGNALdnl Checks for libraries.AC_CHECK_FUNC(gethostbyname)if test $ac_cv_func_gethostbyname = no; then    AC_CHECK_LIB(nsl, gethostbyname)fiAC_CHECK_FUNC(connect)if test $ac_cv_func_connect = no; then    AC_CHECK_LIB(socket, connect)fiAC_CHECK_FUNCS( socket \		strdup \		getopt_long \                gethostbyaddr \	        getservbyname \	        inet_addr \		inet_ntoa \		snprintf \		vfprintf \                stat \		vsprintf \		vsnprintf \		strerror \		strftime \		wait \		waitpid \		getpid \		fork \		vfork \		inet_aton \		herror )dnl Checks for header files.AC_CHECK_HEADERS( arpa/inet.h \		  sys/types.h \		  sys/time.h \		  sys/stat.h \		  fcntl.h \		  signal.h \		  syslog.h \		  pwd.h \		  stdarg.h \		  grp.h \		  errno.h \		  sys/sockio.h \		  sys/wait.h \		  getopt.h )AC_CHECK_HEADERS( unistd.h \		  netinet/in.h \		  netdb.h \		  sys/socket.h                  ,,                  AC_MSG_ERROR(could not locate neccessary system header files) )AC_CHECK_LIB(c, sys_errlist, AC_DEFINE(HAVE_SYS_ERRLIST))dnl you need at least to have getopt, but getopt_long will be used if itdnl is presentAC_CHECK_FUNCS(getopt)if test "$ac_cv_func_getopt" != yes; then  AC_MSG_ERROR(getopt is needed for this program to work)fiAC_CHECK_FUNC(getpass, AC_DEFINE(HAVE_GETPASS),    [EXTRASRC="$EXTRASRC \$(srcdir)/getpass.c"]    [EXTRAOBJ="$EXTRAOBJ \$(srcdir)/getpass.o"] )dnl Get system canonical nameAC_CANONICAL_HOSTAC_DEFINE_UNQUOTED(OS, "${host}")dnl allow selection of the default servicednl the default is to use ez-ipAC_MSG_CHECKING(for user supplied default service)AC_ARG_ENABLE(default-service,              [  --enable-default-service=SERVICE                          the default service type to use                          possibilities are: ezip, pgpow, justlinux, dhs,                          dyndns, dyndns-static, ods, tzo, gnudip, easydns, dyns, hn, zoneedit],	      [ use_SERVICE=$enableval;		AC_MSG_RESULT(yes) ],	      [ AC_MSG_RESULT(no)                 use_SERVICE=null                AC_MSG_WARN(not setting default service) ]   )case "$use_SERVICE" in  ezip ) AC_DEFINE(DEF_SERVICE, EZIP_service);;  ez-ip ) AC_DEFINE(DEF_SERVICE, EZIP_service);;  pgpow ) AC_DEFINE(DEF_SERVICE, PGPOW_service);;  penguinpowered ) AC_DEFINE(DEF_SERVICE, PGPOW_service);;  justlinux ) AC_DEFINE(DEF_SERVICE, JUSTL_service);;  dhs ) AC_DEFINE(DEF_SERVICE, DHS_service);;  dyndns ) AC_DEFINE(DEF_SERVICE, DYNDNS_service);;  dyndns-stat ) AC_DEFINE(DEF_SERVICE, DYNDNS_STAT_service);;  dyndns-static ) AC_DEFINE(DEF_SERVICE, DYNDNS_STAT_service);;  ods ) AC_DEFINE(DEF_SERVICE, ODS_service);;  tzo ) AC_DEFINE(DEF_SERVICE, TZO_service);;  gnudip ) AC_DEFINE(DEF_SERVICE, GNUDIP_service);;  easydns ) AC_DEFINE(DEF_SERVICE, EASYDNS_service);;  dyns ) AC_DEFINE(DEF_SERVICE, DYNS_service);;  hn ) AC_DEFINE(DEF_SERVICE, HN_service);;  zoneedit ) AC_DEFINE(DEF_SERVICE, ZONEEDIT_service);;  null ) AC_DEFINE(DEF_SERVICE, NULL_service);;  "" ) ;;  * ) AC_MSG_ERROR(unknown default service type);;esacdnl check weather we want debugging supportdnl the default is to NOT use debugging supportAC_MSG_CHECKING(whether user wants debugging support)AC_ARG_ENABLE(debug,	      [  --enable-debug          include support for debugging],	      [ AC_DEFINE(DEBUG)		AC_MSG_RESULT(yes) ],	      [ AC_MSG_RESULT(no) ]   )dnl check weather we want to disable MD5 supportAC_MSG_CHECKING(whether user wants to dissable MD5 support)AC_ARG_ENABLE(md5,	      [  --disable-md5           disable MD5 support],	      [ AC_MSG_RESULT(yes) ],	      [ AC_DEFINE(USE_MD5)                AC_MSG_RESULT(no) ]   )AC_SUBST(EXTRASRC)AC_SUBST(EXTRAOBJ)AC_OUTPUT(Makefile)