AC_INIT(starttls.el)
AC_PREREQ(2.13)
AM_INIT_AUTOMAKE(starttls, 0.7)

AM_PATH_LISPDIR

AC_PROG_CC
AC_ISC_POSIX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_CHECK_HEADERS(libgen.h sys/select.h sys/poll.h)

AC_STRUCT_ADDRINFO(ac_cv_struct_addrinfo)
if test "$ac_cv_struct_addrinfo" = "no"; then
	AC_CHECK_LIB(nsl, gethostbyname)
fi
AC_CHECK_LIB(socket, socket)
AC_CHECK_FUNC(getopt_long,,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
AC_REPLACE_FUNCS(basename)
AC_CHECK_FUNC(poll)

AC_ARG_WITH(openssl,[  --with-openssl=PATH     use OpenSSL from PATH])

if test -n "$with_openssl"; then
	CPPFLAGS="$CPPFLAGS -I${with_openssl}/include"
	LDFLAGS="$LDFLAGS -L${with_openssl}/lib"
fi

AC_CHECK_HEADER(openssl/ssl.h, [
	AC_CHECK_LIB(crypto, BIO_accept, LIBS="-lcrypto $LIBS")
	AC_CHECK_LIB(ssl, SSL_CTX_new, LIBS="-lssl $LIBS")],
	AC_MSG_ERROR([OpenSSL not installed - please install first]))

AC_OUTPUT(Makefile)