move the linux predefined macro definition to the TargetInfo, where it really belongs

llvm-svn: 53149

clang/lib/Basic/Targets.cpp

@@ -48,6 +48,11 @@ public:
     Define(Defs, "__APPLE__");
     Define(Defs, "__MACH__");
 #endif
+
+/* FIXME. we may also need to distinguish between darwin and linux targets */
+#ifdef linux
+    Define(Defs, "linux");
+#endif
     
     if (1) {// -fobjc-gc controls this.
       Define(Defs, "__weak", "");

clang/lib/Lex/Preprocessor.cpp

@@ -433,11 +433,6 @@ static void InitializePredefinedMacros(Preprocessor &PP,
   DefineBuiltinMacro(Buf, "__FINITE_MATH_ONLY__=0");
   DefineBuiltinMacro(Buf, "__NO_INLINE__=1");
   DefineBuiltinMacro(Buf, "__PIC__=1");
-
-/* FIXME: this check should be moved to the configure process */
-#ifdef linux
-  DefineBuiltinMacro(Buf, "linux=1");
-#endif
   
   
   if (PP.getLangOptions().CPlusPlus) {