Fix build without --enable-debug

include/plist/plist.h

@@ -1096,6 +1096,7 @@ extern "C"
 
     /**
      * Set debug level for the format parsers.
+     * @note This function does nothing if libplist was not configured with --enable-debug .
      *
      * @param debug Debug level. Currently, only 0 (off) and 1 (enabled) are supported.
      */

src/bplist.c

@@ -229,7 +229,9 @@ void plist_bin_deinit(void)
 
 void plist_bin_set_debug(int debug)
 {
+#if DEBUG
     plist_bin_debug = debug;
+#endif
 }
 
 static plist_t parse_bin_node_at_index(struct bplist_data *bplist, uint32_t node_index);

src/jplist.c

@@ -66,7 +66,9 @@ void plist_json_deinit(void)
 
 void plist_json_set_debug(int debug)
 {
+#ifdef DEBUG
     plist_json_debug = debug;
+#endif
 }
 
 #ifndef HAVE_STRNDUP

src/oplist.c

@@ -65,7 +65,9 @@ void plist_ostep_deinit(void)
 
 void plist_ostep_set_debug(int debug)
 {
+#if DEBUG
     plist_ostep_debug = debug;
+#endif
 }
 
 #ifndef HAVE_STRNDUP

src/xplist.c

@@ -104,7 +104,9 @@ void plist_xml_deinit(void)
 
 void plist_xml_set_debug(int debug)
 {
+#if DEBUG
     plist_xml_debug = debug;
+#endif
 }
 
 static size_t dtostr(char *buf, size_t bufsize, double realval)