Improved CFLAGS in the Compiler, and fixed the warnings this brought to light

recursiveDescentParsers/cplusplus/interpreter/Makefile

@@ -12,7 +12,7 @@ TESTFILES := testInput.txt testOutput.txt
 CC := clang++
 
 ## Add your own CFLAGS if you find them necessary... such as -O3 or so... 
-CFLAGS :=  
+CFLAGS :=   -g -std=c++17 -Wall 
 
 
 ## More preliminaries

recursiveDescentParsers/cplusplus/interpreter/interpreter.cpp

@@ -43,7 +43,6 @@ static std::istream *input = &(std::cin); // until proven otherwise
 static std::string	currentLine( "" );
 static int	currentLineNumber = -1;
 static int	currentColumnNumber = 0;
-static int	currentTokenLength = 0;
 
 static Token next_token; // again with the global variables... 
 static numberType currentNumber; // = zero....
@@ -165,7 +164,7 @@ numberType E2ndHalf() {
 
 // 	T´	→ * F T´  |  / F T´  |  ε
 numberType  T2ndHalf() { 
-	numberType tmp, rhs, acc;
+    numberType tmp; // Compiler forces me to put this here :-(
     switch ( next_token ) {
 		case tok_times : 
 			next_token = gettok(); // eat *