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-rw-r--r--libcrystfel/src/grainspotter.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/libcrystfel/src/grainspotter.h b/libcrystfel/src/grainspotter.h
index 2e308a1c..b6a83725 100644
--- a/libcrystfel/src/grainspotter.h
+++ b/libcrystfel/src/grainspotter.h
@@ -35,6 +35,10 @@
#include "cell.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
extern IndexingPrivate *grainspotter_prepare(IndexingMethod *indm,
UnitCell *cell,
struct detector *det,
@@ -45,5 +49,8 @@ extern void grainspotter_cleanup(IndexingPrivate *pp);
extern int grainspotter_index(struct image *image, IndexingPrivate *p);
+#ifdef __cplusplus
+}
+#endif
#endif /* GRAINSPOTTER_H */