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-rw-r--r--libguile/strings.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libguile/strings.h b/libguile/strings.h
index 22b3354e4..e122d1af9 100644
--- a/libguile/strings.h
+++ b/libguile/strings.h
@@ -65,8 +65,8 @@ extern SCM scm_makstr (long len, int slots);
extern SCM scm_makfromstrs (int argc, char **argv);
extern SCM scm_take0str (char * it);
extern SCM scm_makfromstr (const char *src, scm_sizet len, int slots);
-extern SCM scm_makfrom0str (char *src);
-extern SCM scm_makfrom0str_opt (char *src);
+extern SCM scm_makfrom0str (const char *src);
+extern SCM scm_makfrom0str_opt (const char *src);
extern SCM scm_make_string (SCM k, SCM chr);
extern SCM scm_string_length (SCM str);
extern SCM scm_string_ref (SCM str, SCM k);