Add Clang version inspection macros. Fixes PR6681.
llvm-svn: 102686
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index e035afd..f1e9819 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -11,6 +11,7 @@
//
//===----------------------------------------------------------------------===//
+#include "clang/Basic/Version.h"
#include "clang/Frontend/Utils.h"
#include "clang/Basic/MacroBuilder.h"
#include "clang/Basic/TargetInfo.h"
@@ -212,7 +213,20 @@
// Compiler version introspection macros.
Builder.defineMacro("__llvm__"); // LLVM Backend
Builder.defineMacro("__clang__"); // Clang Frontend
-
+#define TOSTR2(X) #X
+#define TOSTR(X) TOSTR2(X)
+ Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
+ Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
+#ifdef CLANG_VERSION_PATCHLEVEL
+ Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
+#else
+ Builder.defineMacro("__clang_patchlevel__", "0");
+#endif
+ Builder.defineMacro("__clang_version__",
+ "\"" CLANG_VERSION_STRING " ("
+ + getClangFullRepositoryVersion() + ")\"");
+#undef TOSTR
+#undef TOSTR2
// Currently claim to be compatible with GCC 4.2.1-5621.
Builder.defineMacro("__GNUC_MINOR__", "2");
Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");