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-rw-r--r--source/lib/charcnv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/source/lib/charcnv.c b/source/lib/charcnv.c
index a4f90a5a10f..583744a486a 100644
--- a/source/lib/charcnv.c
+++ b/source/lib/charcnv.c
@@ -39,8 +39,8 @@ static void initmaps(void) {
mapsinited = True;
}
-static void update_map(char *str) {
- char *p;
+static void update_map(const char *str) {
+ const char *p;
for (p = str; *p; p++) {
if (p[1]) {