fix compiler warning messages

src/as/asCa.c

@@ -127,7 +127,7 @@ LOCAL void eventCallback(struct event_handler_args eha)
     ASGINP		*pasginp;
     CAPVT		*pcapvt;
     ASG			*pasg;
-    struct dbr_sts_double *pdata = eha.dbr;
+    READONLY struct dbr_sts_double *pdata = eha.dbr;
     int			Ilocked=FALSE;
 
     if(!caInitializing) {

src/as/asDbLib.c

@@ -65,6 +65,7 @@ DEVELOPMENT CENTER AT ARGONNE NATIONAL LABORATORY (708-252-2000).
 #include <caeventmask.h>
 #include <dbStaticLib.h>
 #include <dbAccess.h>
+#include <dbEvent.h>
 #include <asLib.h>
 #include <asDbLib.h>
 #include <dbCommon.h>

src/as/asLib_lex.l

@@ -8,7 +8,7 @@ static ASINPUTFUNCPTR *my_yyinput;
 #undef YY_INPUT
 #define YY_INPUT(b,r,ms) (r=(*my_yyinput)(b,ms))
 
-yyreset()
+static int yyreset()
 {
 	line_num=1;
 	BEGIN INITIAL;
@@ -66,9 +66,13 @@ INP[A-L] {/* If A-L is changed then ASMAXINP must also be changed*/
 \n      { line_num ++;}
 .       { 
 		char message[20];
+		YY_BUFFER_STATE *dummy=0;
 	  
 		sprintf(message,"invalid character '%c'",yytext[0]);
 	  	yyerror(message);
+		/*The following suppresses compiler warning messages*/
+		if(FALSE) yyunput('c',message);
+		if(FALSE) yy_switch_to_buffer(*dummy);
 	}
 
 %%