ccan/noerr: fix compiler warning with const strings.

[ccan] / ccan / str / str_debug.h

diff --git a/ccan/str/str_debug.h b/ccan/str/str_debug.h
index 4545ccaa3617088485c480a59f3a7367abfc9699..f029e8ef90dfe38da1a0ebfc66e25ae7c2ceea35 100644 (file)
--- a/ccan/str/str_debug.h
+++ b/ccan/str/str_debug.h
@@ -1,3 +1,4 @@
+/* Licensed under LGPLv2.1+ - see LICENSE file for details */
 #ifndef CCAN_STR_DEBUG_H
 #define CCAN_STR_DEBUG_H
 
@@ -8,7 +9,9 @@
 int str_isalnum(int i);
 int str_isalpha(int i);
 int str_isascii(int i);
+#if HAVE_ISBLANK
 int str_isblank(int i);
+#endif
 int str_iscntrl(int i);
 int str_isdigit(int i);
 int str_isgraph(int i);