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-rw-r--r--range-diff.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/range-diff.h b/range-diff.h
index c57ec7d..e11976d 100644
--- a/range-diff.h
+++ b/range-diff.h
@@ -13,7 +13,7 @@
*/
int show_range_diff(const char *range1, const char *range2,
int creation_factor, int dual_color,
- struct diff_options *diffopt,
- struct argv_array *other_arg);
+ const struct diff_options *diffopt,
+ const struct argv_array *other_arg);
#endif