--- ../tcc-0.9.26/tccpp.c	2013-02-15 14:24:00.000000000 +0000
+++ tccpp.c	2015-04-10 17:22:06.741823069 +0100
@@ -2178,7 +2178,10 @@
             }
         }
         break;
-
+    
+    /* treat $ as id when using gnu ext */
+    case '$': if (!gnu_ext) goto parse_simple;    
+    
     case 'a': case 'b': case 'c': case 'd':
     case 'e': case 'f': case 'g': case 'h':
     case 'i': case 'j': case 'k': case 'l':
@@ -2477,8 +2480,8 @@
     case ':':
     case '?':
     case '~':
-    case '$': /* only used in assembler */
-    case '@': /* dito */
+    case '@': /* only used in assembler */
+    parse_simple:
         tok = c;
         p++;
         break;
@@ -3049,7 +3052,8 @@
 
     /* init isid table */
     for(i=CH_EOF;i<256;i++)
-        isidnum_table[i-CH_EOF] = isid(i) || isnum(i);
+        isidnum_table[i-CH_EOF] = (
+            isid(i) || isnum(i) || (gnu_ext ? i == '$' : 0));
 
     /* add all tokens */
     table_ident = NULL;
--- ../tcc-0.9.26/tcc-doc.texi	2013-02-15 14:24:00.000000000 +0000
+++ tcc-doc.texi	2015-04-10 16:53:14.697761387 +0100
@@ -590,6 +590,8 @@
 
 @item @code{#pragma pack} is supported for win32 compatibility.
 
address@hidden The dollar sign @code{$} is allowed in identifiers.
+
 @end itemize
 
 @section TinyCC extensions