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-rw-r--r--src/dirname.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dirname.c b/src/dirname.c
index 928a663c6..3c93d0357 100644
--- a/src/dirname.c
+++ b/src/dirname.c
@@ -36,7 +36,7 @@
proper_name ("Jim Meyering")
/* The name this program was run with. */
-char *program_name;
+char const *program_name;
void
usage (int status)