pass NULL to library_init() to load settings from default file

src/scepclient/Makefile.am

@@ -18,7 +18,6 @@ INCLUDES = \
 AM_CFLAGS = \
 -DIPSEC_CONFDIR=\"${sysconfdir}\" \
 -DPLUGINS=\""${pluto_plugins}\"" \
--DSTRONGSWAN_CONF=\"${strongswan_conf}\" \
 -DDEBUG -DNO_PLUTO
 
 LIBSTRONGSWANBUILDDIR=$(top_builddir)/src/libstrongswan

src/scepclient/scepclient.c

@@ -387,7 +387,7 @@ int main(int argc, char **argv)
 	log_to_stderr     = TRUE;
 
 	/* initialize library */
-	if (!library_init(STRONGSWAN_CONF))
+	if (!library_init(NULL))
 	{
 		library_deinit();
 		exit(SS_RC_LIBSTRONGSWAN_INTEGRITY);