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42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
dnl 'extern inline' a la ISO C99.
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dnl Copyright 2012 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_EXTERN_INLINE],
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[
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AC_REQUIRE([AC_C_INLINE])
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AH_VERBATIM([extern_inline],
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[/* _GL_INLINE is a portable alternative to ISO C99 plain 'inline'.
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_GL_EXTERN_INLINE is a portable alternative to 'extern inline'.
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_GL_INLINE_HEADER_BEGIN contains useful stuff to put
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in an include file, before uses of _GL_INLINE.
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It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic,
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when FOO is an inline function in the header; see
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<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.
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_GL_INLINE_HEADER_END contains useful stuff to put
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in the same include file, after uses of _GL_INLINE. */
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#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__
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# define _GL_INLINE inline
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# define _GL_EXTERN_INLINE extern inline
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# if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
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# define _GL_INLINE_HEADER_BEGIN \
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_Pragma ("GCC diagnostic push") \
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_Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
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_Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"")
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# define _GL_INLINE_HEADER_END \
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_Pragma ("GCC diagnostic pop")
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# endif
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#else
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# define _GL_INLINE static inline
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# define _GL_EXTERN_INLINE static inline
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#endif
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#ifndef _GL_INLINE_HEADER_BEGIN
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# define _GL_INLINE_HEADER_BEGIN
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# define _GL_INLINE_HEADER_END
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#endif])
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])
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