--- lemon.c.orig	2022-05-11 05:42:38.000000000 +0200
+++ lemon.c	2022-05-11 09:13:17.556350944 +0200
@@ -426,6 +426,7 @@
   int printPreprocessed;   /* Show preprocessor output on stdout */
   int has_fallback;        /* True if any %fallback is seen in the grammar */
   int nolinenosflag;       /* True if #line statements should not be printed */
+  int linkage;             /* True if %static provided (use static linkage) */
   char *argv0;             /* Name of the program */
 };
 
@@ -1553,6 +1554,24 @@
   lemon_strcpy(outputDir, z);
 }
 
+/* Remember the name of the code extension (automatically prefix '.')
+** default is "c" extension
+*/
+static char *code_ext = ".c";
+static void handle_e_option(char *z){
+  code_ext = (char *) malloc( lemonStrlen(z)+2 );
+  if( code_ext==0 ){
+    fprintf(stderr,"out of memory\n");
+    exit(1);
+  }
+  if(*z == '.'){
+    lemon_strcpy(code_ext, z);
+  } else {
+    code_ext[0] = '.';
+    lemon_strcpy(&(code_ext[1]), z);
+  }
+}
+
 static char *user_templatename = NULL;
 static void handle_T_option(char *z){
   user_templatename = (char *) malloc( lemonStrlen(z)+1 );
@@ -1641,6 +1660,7 @@
     {OPT_FLAG, "c", (char*)&compress, "Don't compress the action table."},
     {OPT_FSTR, "d", (char*)&handle_d_option, "Output directory.  Default '.'"},
     {OPT_FSTR, "D", (char*)handle_D_option, "Define an %ifdef macro."},
+    {OPT_FSTR, "e", (char*)&handle_e_option, "Output code extension.  Default 'c'"},
     {OPT_FLAG, "E", (char*)&printPP, "Print input file after preprocessing."},
     {OPT_FSTR, "f", 0, "Ignored.  (Placeholder for -f compiler options.)"},
     {OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
@@ -2268,6 +2288,7 @@
       psp->preccounter = 0;
       psp->firstrule = psp->lastrule = 0;
       psp->gp->nrule = 0;
+      psp->gp->linkage = 0;
       /* fall through */
     case WAITING_FOR_DECL_OR_RULE:
       if( x[0]=='%' ){
@@ -2553,6 +2574,11 @@
           psp->state = WAITING_FOR_WILDCARD_ID;
         }else if( strcmp(x,"token_class")==0 ){
           psp->state = WAITING_FOR_CLASS_ID;
+        }else if( strcmp(x,"static")==0 ){
+          /* %static is boolean-like */
+          psp->gp->linkage = 1; /* 1 = static (True) */
+          psp->insertLineMacro = 0;
+          psp->state = WAITING_FOR_DECL_OR_RULE;
         }else{
           ErrorMsg(psp->filename,psp->tokenlineno,
             "Unknown declaration keyword: \"%%%s\".",x);
@@ -4315,7 +4341,7 @@
 
   in = tplt_open(lemp);
   if( in==0 ) return;
-  out = file_open(lemp,".c","wb");
+  out = file_open(lemp,code_ext,"wb");
   if( out==0 ){
     fclose(in);
     return;
@@ -4439,6 +4465,9 @@
   tplt_xfer(lemp->name,in,out,&lineno);
 
   /* Generate the defines */
+  if( lemp->linkage ){
+    fprintf(out,"#define YYFUNCAPI static\n"); lineno++;
+  }
   fprintf(out,"#define YYCODETYPE %s\n",
     minimum_size_type(0, lemp->nsymbol, &szCodeType)); lineno++;
   fprintf(out,"#define YYNOCODE %d\n",lemp->nsymbol);  lineno++;