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-rw-r--r--src/GipfelWidget.H2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/GipfelWidget.H b/src/GipfelWidget.H
index 274ce33..435c9be 100644
--- a/src/GipfelWidget.H
+++ b/src/GipfelWidget.H
@@ -62,7 +62,7 @@ class GipfelWidget : public Fl_Widget {
int save_image(char *file);
- int export_hills(FILE *fp);
+ int export_hills(const char *file, FILE *fp);
const char * get_image_filename();