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-rw-r--r--Parser/pgenmain.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/Parser/pgenmain.c b/Parser/pgenmain.c
index 0f055d6308..3ca4afefd3 100644
--- a/Parser/pgenmain.c
+++ b/Parser/pgenmain.c
@@ -27,7 +27,7 @@ int Py_VerboseFlag;
int Py_IgnoreEnvironmentFlag;
/* Forward */
-grammar *getgrammar(char *filename);
+grammar *getgrammar(const char *filename);
void Py_Exit(int) _Py_NO_RETURN;
@@ -76,7 +76,7 @@ main(int argc, char **argv)
}
grammar *
-getgrammar(char *filename)
+getgrammar(const char *filename)
{
FILE *fp;
node *n;