[Development] Add detection for gnutls to configure.ac.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4043 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/configure.ac b/configure.ac
index 4bfb979..bcd0b2d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -68,6 +68,20 @@
AC_PATH_XTRA
+dnl Check gnutls availability
+AC_ARG_ENABLE([gnutls],
+ AS_HELP_STRING([--enable-gnutls],
+ [build in GNUTLS based encryption support (default yes)]),
+ [enable_gnutls="$enableval"], [enable_gnutls=yes])
+GNUTLS_CFLAGS=
+GNUTLS_LIBS=
+if test "$enable_gnutls" = yes; then
+ PKG_CHECK_MODULES([gnutls], [gnutls >= 1.0.0],
+ [AC_DEFINE(HAVE_GNUTLS, 1, [GNUTLS available])], [])
+fi
+AC_SUBST([GNUTLS_CFLAGS], ["$gnutls_CFLAGS"])
+AC_SUBST([GNUTLS_LIBS], ["$gnutls_LIBS"])
+
VNCCONFIG_DIR='vncconfig'
AC_ARG_ENABLE([vncconfig],
AS_HELP_STRING([--enable-vncconfig],