dnl Process this file with autoconf to produce a configure script.
AC_INIT(main.C)
AC_CANONICAL_SYSTEM

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_RANLIB

AC_EGREP_CPP(yes,
[#ifdef _AIX
  yes
#endif
], AC_DEFINE(unix))

case "$target" in
*-linux-*)
        AC_DEFINE(GETSOCKOPT_SOCKLEN_T)
        ;;
*sysv5OpenUNIX8*)
        AC_DEFINE(GETSOCKOPT_SIZE_T)
        ;;
esac

dnl Checks for libraries.
dnl Replace `main' with a function in -lm:
AC_CHECK_LIB(m, sin)
dnl Replace `main' with a function in -lnsl:
AC_CHECK_LIB(nsl, gethostbyaddr)
dnl Replace `main' with a function in -lsocket:
AC_CHECK_LIB(socket, setservent)
dnl Replace `main' with a function in -lgen:
AC_CHECK_LIB(gen, strfind)
AC_CHECK_LIB(gen, strfind, [ AC_DEFINE(HAVE_STRFIND) ] )
AC_CHECK_LIB(stdc++, cerr)

dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h sys/time.h unistd.h sys/select.h sys/statvfs.h sys/swap.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

dnl Checks for library functions.
AC_CHECK_FUNCS(select socket strstr lockf flock strftime)

AC_PATH_PROG(HAVE_SBIN_SENDMAIL, sendmail, 0, /usr/sbin) 
AC_PATH_PROG(HAVE_LIB_SENDMAIL, sendmail, 0, /usr/lib) 
if test "$ac_cv_path_HAVE_SBIN_SENDMAIL" = /usr/sbin/sendmail; then 
AC_DEFINE(HAVE_SBIN_SENDMAIL) 
fi 
if test "$ac_cv_path_HAVE_LIB_SENDMAIL" = /usr/lib/sendmail; then 
AC_DEFINE(HAVE_LIB_SENDMAIL) 
fi 

AC_EGREP_CPP(yes,
[#ifdef __APPLE__
  yes
#endif
], AC_DEFINE(unix))

AC_OUTPUT(Makefile)