opt: handle -Wcast-qual warnings.

[ccan] / ccan / opt / helpers.c

diff --git a/ccan/opt/helpers.c b/ccan/opt/helpers.c
index 17d56e0201dc66d7810b26f1cd40a1e5e702f0a7..e7ab273cdcede67a9bec9ae868ec8d8faa84cd6b 100644 (file)
--- a/ccan/opt/helpers.c
+++ b/ccan/opt/helpers.c
@@ -1,5 +1,6 @@
 /* Licensed under GPLv3+ - see LICENSE file for details */
 #include <ccan/opt/opt.h>
 /* Licensed under GPLv3+ - see LICENSE file for details */
 #include <ccan/opt/opt.h>

+#include <ccan/cast/cast.h>

 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>


@@ -52,7 +53,7 @@ char *opt_set_invbool_arg(const char *arg, bool *b)
 /* Set a char *. */
 char *opt_set_charp(const char *arg, char **p)
 {
 /* Set a char *. */
 char *opt_set_charp(const char *arg, char **p)
 {

-       *p = (char *)arg;
+       *p = cast_const(char *, arg);

        return NULL;
 }
 
        return NULL;
 }