mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Ryan Lopopolo
b5662c87c8
When building WebAssembly targets with clang (e.g. wasm32-unknown-unknown), all
symbols are hidden by default. To export a symbol, it must be marked with
__attribute__((visibility(default)))
Rather than detecting this exotic target in mruby, allow MRB_API to be defined
externally.
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
/**
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** @file common.h - mruby common platform definition"
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRUBY_COMMON_H
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#define MRUBY_COMMON_H
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#ifdef __APPLE__
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#ifndef __TARGETCONDITIONALS__
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#include "TargetConditionals.h"
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#endif
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#endif
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#ifdef __cplusplus
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#ifdef MRB_ENABLE_CXX_ABI
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#define MRB_BEGIN_DECL
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#define MRB_END_DECL
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#else
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# define MRB_BEGIN_DECL extern "C" {
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# define MRB_END_DECL }
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#endif
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#else
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/** Start declarations in C mode */
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# define MRB_BEGIN_DECL
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/** End declarations in C mode */
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# define MRB_END_DECL
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#endif
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/**
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* Shared compiler macros
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*/
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MRB_BEGIN_DECL
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/** Declare a function that never returns. */
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#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L
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# define mrb_noreturn _Noreturn
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#elif defined __GNUC__ && !defined __STRICT_ANSI__
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# define mrb_noreturn __attribute__((noreturn))
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#elif defined _MSC_VER
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# define mrb_noreturn __declspec(noreturn)
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#else
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# define mrb_noreturn
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#endif
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/** Mark a function as deprecated. */
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#if defined __GNUC__ && !defined __STRICT_ANSI__
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# define mrb_deprecated __attribute__((deprecated))
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#elif defined _MSC_VER
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# define mrb_deprecated __declspec(deprecated)
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#else
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# define mrb_deprecated
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#endif
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/** Declare a function as always inlined. */
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#if defined _MSC_VER && _MSC_VER < 1900
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# ifndef __cplusplus
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# define inline __inline
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# endif
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#endif
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#define MRB_INLINE static inline
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/** Declare a public MRuby API function. */
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#ifndef MRB_API
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#if defined(MRB_BUILD_AS_DLL)
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#if defined(MRB_CORE) || defined(MRB_LIB)
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# define MRB_API __declspec(dllexport)
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#else
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# define MRB_API __declspec(dllimport)
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#endif
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#else
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# define MRB_API extern
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#endif
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#endif
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MRB_END_DECL
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#endif /* MRUBY_COMMON_H */
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