configure.in

   1 AC_INIT(starttls.el)
   2 AC_PREREQ(2.13)
   3 AM_INIT_AUTOMAKE(starttls, 0.10)
   4
   5 AM_PATH_LISPDIR
   6
   7 AC_PROG_CC
   8 AC_ISC_POSIX
   9 AC_PROG_INSTALL
  10 AC_PROG_MAKE_SET
  11 AC_PROG_RANLIB
  12
  13 AC_CHECK_HEADERS(libgen.h sys/select.h sys/poll.h)
  14
  15 AC_STRUCT_ADDRINFO(ac_cv_struct_addrinfo)
  16 if test "$ac_cv_struct_addrinfo" = "no"; then
  17         AC_CHECK_LIB(nsl, gethostbyname)
  18 fi
  19 AC_CHECK_LIB(socket, socket)
  20
  21 AC_CHECK_FUNC(getopt_long,,[AC_LIBOBJ(getopt)AC_LIBOBJ(getopt1)])
  22 AC_REPLACE_FUNCS(basename)
  23 AC_CHECK_FUNC(poll)
  24
  25 AC_ARG_WITH(openssl,[  --with-openssl=PATH     use OpenSSL from PATH])
  26 AC_ARG_WITH(gnutls,[  --with-gnutls     use GnuTLS instead of OpenSSL],
  27         use_gnutls=true, use_gnutls=false)
  28 AM_CONDITIONAL(USE_GNUTLS, test x$use_gnutls = xtrue)
  29
  30 if $use_gnutls; then
  31         AC_CHECK_HEADER(gnutls/gnutls.h, [
  32                 AC_DEFINE(USE_GNUTLS)
  33                 AC_CHECK_LIB(gnutls, gnutls_global_init, LIBS="-lgnutls $LIBS")],
  34                 [GnuTLS is selected, but it is not installed])
  35 else
  36         if test -n "$with_openssl"; then
  37                 CPPFLAGS="$CPPFLAGS -I${with_openssl}/include"
  38                 LDFLAGS="$LDFLAGS -L${with_openssl}/lib"
  39         fi
  40         AC_CHECK_HEADER(openssl/ssl.h, [
  41                 AC_CHECK_LIB(crypto, BIO_accept, LIBS="-lcrypto $LIBS")
  42                 AC_CHECK_LIB(ssl, SSL_CTX_new, LIBS="-lssl $LIBS")],
  43                 AC_MSG_ERROR([OpenSSL not installed - please install first]))
  44 fi
  45
  46 AC_OUTPUT(Makefile)