1 files changed, 8 insertions, 0 deletions
diff --git a/libcrystfel/src/asdf.h b/libcrystfel/src/asdf.h
index 7f110960..896f65a8 100644
--- a/libcrystfel/src/asdf.h
+++ b/libcrystfel/src/asdf.h
@@ -46,6 +46,7 @@ extern "C" {
 extern int run_asdf(struct image *image, void *ipriv);
 
 extern void *asdf_prepare(IndexingMethod *indm, UnitCell *cell);
+extern const char *asdf_probe(UnitCell *cell);
 
 extern void asdf_cleanup(void *pp);
 
@@ -65,6 +66,13 @@ void *asdf_prepare(IndexingMethod *indm, UnitCell *cell)
 	return NULL;
 }
 
+
+const char *asdf_probe(UnitCell *cell)
+{
+	return NULL;
+}
+
+
 void asdf_cleanup(void *pp)
 {
 }