Adding libhydra stub.

configure.in

@@ -840,6 +840,7 @@ AM_CONDITIONAL(USE_CHARON, test x$charon = xtrue)
 AM_CONDITIONAL(USE_TOOLS, test x$tools = xtrue)
 AM_CONDITIONAL(USE_SCRIPTS, test x$scripts = xtrue)
 AM_CONDITIONAL(USE_LIBSTRONGSWAN, test x$charon = xtrue -o x$pluto = xtrue -o x$tools = xtrue)
+AM_CONDITIONAL(USE_LIBHYDRA, test x$charon = xtrue -o x$pluto = xtrue)
 AM_CONDITIONAL(USE_FILE_CONFIG, test x$pluto = xtrue -o x$stroke = xtrue)
 AM_CONDITIONAL(USE_VSTR, test x$vstr = xtrue)
 AM_CONDITIONAL(USE_SIMAKA, test x$simaka = xtrue)
@@ -897,6 +898,7 @@ AC_OUTPUT(
 	src/libstrongswan/plugins/gcrypt/Makefile
 	src/libstrongswan/plugins/agent/Makefile
 	src/libstrongswan/plugins/test_vectors/Makefile
+	src/libhydra/Makefile
 	src/libfreeswan/Makefile
 	src/libsimaka/Makefile
 	src/pluto/Makefile

src/Makefile.am

@@ -4,6 +4,10 @@ if USE_LIBSTRONGSWAN
   SUBDIRS += libstrongswan
 endif
 
+if USE_LIBHYDRA
+  SUBDIRS += libhydra
+endif
+
 if USE_SIMAKA
   SUBDIRS += libsimaka
 endif

src/libhydra/Makefile.am

@@ -0,0 +1,30 @@
+lib_LTLIBRARIES = libhydra.la
+
+libhydra_la_SOURCES =
+
+libhydra_la_LIBADD =
+
+#INCLUDES = -I$(top_srcdir)/src/libstrongswan
+AM_CFLAGS = \
+-DIPSEC_DIR=\"${ipsecdir}\" \
+-DPLUGINDIR=\"${plugindir}\" \
+-DSTRONGSWAN_CONF=\"${strongswan_conf}\"
+
+#EXTRA_DIST = Android.mk
+
+# build optional plugins
+########################
+
+if MONOLITHIC
+SUBDIRS =
+else
+SUBDIRS = .
+endif
+
+#if USE_FOO
+#  SUBDIRS += plugins/foo
+#if MONOLITHIC
+#  libhydra_la_LIBADD += plugins/foo/libstrongswan-foo.la
+#endif
+#endif
+