AC_INIT(starttls.el)
AM_INIT_AUTOMAKE(starttls, 0.6)

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_CHECK_LIB(nsl, gethostbyname)
AC_CHECK_LIB(socket, socket)
AC_CHECK_TYPE(fd_set, int)
AC_REPLACE_FUNCS(basename getaddrinfo)
AC_CHECK_FUNC(poll)

AC_STRUCT_ADDRINFO(ac_cv_struct_addrinfo)
if test "$ac_cv_struct_addrinfo" = "no"; then
	AC_CHECK_BITTYPES(ac_cv_bittypes)
	AC_STRUCT_SA_STORAGE(ac_cv_sa_storage)
fi

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)