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Add Clang version inspection macros. Fixes PR6681.

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llvm-svn: 102686
This commit is contained in:
Douglas Gregor
2010-04-30 02:51:06 +00:00
parent 48bf349471
commit 6602c25c0c
3 changed files with 57 additions and 2 deletions
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16
clang/lib/Frontend/InitPreprocessor.cpp
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@@ -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 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
// 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");