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Diffstat (limited to 'include/ruby/3/compiler_is/apple.h')
-rw-r--r-- | include/ruby/3/compiler_is/apple.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/ruby/3/compiler_is/apple.h b/include/ruby/3/compiler_is/apple.h new file mode 100644 index 0000000000..bd08b7dd63 --- /dev/null +++ b/include/ruby/3/compiler_is/apple.h @@ -0,0 +1,40 @@ +/** \noop-*-C++-*-vi:ft=cpp + * @file + * @author Ruby developers <ruby-core@ruby-lang.org> + * @copyright This file is a part of the programming language Ruby. + * Permission is hereby granted, to either redistribute and/or + * modify this file, provided that the conditions mentioned in the + * file COPYING are met. Consult the file for details. + * @warning Symbols prefixed with either `RUBY3` or `ruby3` are + * implementation details. Don't take them as canon. They could + * rapidly appear then vanish. The name (path) of this header file + * is also an implementation detail. Do not expect it to persist + * at the place it is now. Developers are free to move it anywhere + * anytime at will. + * @note To ruby-core: remember that this header can be possibly + * recursively included from extension libraries written in C++. + * Do not expect for instance `__VA_ARGS__` is always available. + * We assume C99 for ruby itself but we don't assume languages of + * extension libraries. They could be written in C++98. + * @brief Defines #RUBY3_COMPILER_IS_Apple. + * + * Apple ships clang. Problem is, its `__clang_major__` etc. are not the + * upstream LLVM version, but XCode's. We have to think Apple's is distinct + * from LLVM's, when it comes to compiler detection business in this header + * file. + */ +#if defined(RUBY3_COMPILER_IS_Apple) +# /* Take that. */ + +#elif ! defined(__clang__) +# define RUBY3_COMPILER_IS_Apple 0 + +#elif ! defined(__apple_build_version__) +# define RUBY3_COMPILER_IS_Apple 0 + +#else +# define RUBY3_COMPILER_IS_Apple 1 +# define RUBY3_COMPILER_VERSION_MAJOR __clang_major__ +# define RUBY3_COMPILER_VERSION_MINOR __clang_minor__ +# define RUBY3_COMPILER_VERSION_PATCH __clang_patchlevel__ +#endif |