diff --git a/synctex_main.c b/synctex_main.c
index 2873f32..8e411d7 100644
--- a/synctex_main.c
+++ b/synctex_main.c
@@ -64,7 +64,7 @@
 #       define _ISOC99_SOURCE /* to get the fmax() prototype */
 #   endif
 
-#   ifdef SYNCTEX_WORK
+#   ifdef __SYNCTEX_WORK__
 #       include <synctex_parser_c-auto.h>
 /*      for inline && HAVE_xxx */
 #   else
diff --git a/synctex_parser.c b/synctex_parser.c
index 6d85db9..e1fd421 100644
--- a/synctex_parser.c
+++ b/synctex_parser.c
@@ -108,9 +108,10 @@
 
 /* Mark unused paramters, so that there will be no compile warnings. */
 #ifdef __DARWIN_UNIX03
-#define UNUSED(x) _Pragma(unused(x))
+#   define SYNCTEX_UNUSED(x) SYNCTEX_PRAGMA(unused(x))
+#   define SYNCTEX_PRAGMA(x) _Pragma ( #x )
 #else
-#define UNUSED(x) (void)(x);
+#   define SYNCTEX_UNUSED(x) (void)(x);
 #endif
 
 #include "synctex_parser_advanced.h"
@@ -205,7 +206,7 @@ typedef struct synctex_tlcpector_t {
 } synctex_tlcpector_s;
 typedef const synctex_tlcpector_s * synctex_tlcpector_p;
 static int _synctex_int_none(synctex_node_p node) {
-    UNUSED(node)
+    SYNCTEX_UNUSED(node)
     return 0;
 }
 static const synctex_tlcpector_s synctex_tlcpector_none = {
@@ -239,7 +240,7 @@ typedef struct synctex_vispector_t {
     synctex_float_getter_f depth;
 } synctex_vispector_s;
 static float _synctex_float_none(synctex_node_p node) {
-    UNUSED(node)
+    SYNCTEX_UNUSED(node)
     return 0;
 }
 static const synctex_vispector_s synctex_vispector_none = {
@@ -488,7 +489,7 @@ DEFINE_SYNCTEX_TREE_GETSETRESET(target)
 #endif
 
 #define SYNCTEX_HAS_CHILDREN(NODE) (NODE && _synctex_tree_child(NODE))
-#	ifdef	__SYNCTEX_WORK__
+#	ifdef	_X_SYNCTEX_WORK__
 #		include "/usr/include/zlib.h"
 #	else
 #		include <zlib.h>
@@ -7397,7 +7398,7 @@ static synctex_node_p _synctex_display_query_v2(synctex_node_p target, int tag,
     return first_handle;
 }
 synctex_iterator_p synctex_iterator_new_display(synctex_scanner_p scanner,const char * name,int line,int column, int page_hint) {
-    UNUSED(column)
+    SYNCTEX_UNUSED(column)
     if (scanner) {
         int tag = synctex_scanner_get_tag(scanner,name);/* parse if necessary */
         int max_line = 0;
@@ -8169,7 +8170,7 @@ SYNCTEX_INLINE static synctex_nd_lr_s __synctex_eq_get_closest_children_in_hbox_
 }
 #endif
 SYNCTEX_INLINE static synctex_nd_lr_s __synctex_eq_get_closest_children_in_vbox_v2(synctex_point_p hitP, synctex_node_p nodeP) {
-    UNUSED(nodeP)
+    SYNCTEX_UNUSED(nodeP)
     synctex_nd_lr_s nds = {SYNCTEX_ND_0,SYNCTEX_ND_0};
     synctex_nd_s nd = SYNCTEX_ND_0;
     if ((nd.node = synctex_node_child(nd.node))) {
diff --git a/synctex_parser_advanced.h b/synctex_parser_advanced.h
index 7a95dc6..104ba78 100644
--- a/synctex_parser_advanced.h
+++ b/synctex_parser_advanced.h
@@ -388,7 +388,7 @@ extern "C" {
     int synctex_node_hbox_height(synctex_node_p node);
     int synctex_node_hbox_depth(synctex_node_p node);
     
-    synctex_scanner_p synctex_scanner_new();
+    synctex_scanner_p synctex_scanner_new(void);
     synctex_node_p synctex_node_new(synctex_scanner_p scanner,synctex_node_type_t type);
 
     /**
diff --git a/synctex_parser_readme.md b/synctex_parser_readme.md
index 01c4ccc..99d73b5 100644
--- a/synctex_parser_readme.md
+++ b/synctex_parser_readme.md
@@ -11,6 +11,8 @@ This file is part of the __SyncTeX__ package.
 
 	* Remove a `\` character from the name ot 2 test files.
 	* Change variable name `class` to `class_` because the former is a reserved keyword in C++.
+	* Adding a more portable unused variable management.
+	* Various cosmetic changes in the source code, including explicit declaration of `void` in forward function declaration.
 	
 
 * Changes in version `1.20`