adding warning to adlc sources doesn't make gcc to report them. although on other platforms, compilers report warnings.

diff -r 2bfeb58686e4 -r 2df72fc5f78a src/share/vm/adlc/main.cpp
--- a/src/share/vm/adlc/main.cpp Thu Dec 17 16:12:58 2015 +0300
+++ b/src/share/vm/adlc/main.cpp Sun Feb 07 21:45:21 2016 +0300
@@ -24,6 +24,7 @@
 
 // MAIN.CPP - Entry point for the Architecture Description Language Compiler
 #include "adlc.hpp"
+#define FOO DEFAULT_FOO
 
 //------------------------------Prototypes-------------------------------------
 static void usage(ArchDesc& AD); // Print usage message and exit
@@ -43,10 +44,16 @@
   }
   return basename;
 }
-
+static void foo() { }
 //------------------------------main-------------------------------------------
 int main(int argc, char *argv[])
 {
+ int unused;
+ int a;
+ int b=0;
+ int *p = NULL;
+ if (b=a) { a++; }
+ if ((a==b) == 2) { a=*p; }
   ArchDesc AD; // Architecture Description object
   globalAD = &AD;