diff options
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/cdefs.h | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h index 3ae52c7a8..18143058f 100644 --- a/include/sys/cdefs.h +++ b/include/sys/cdefs.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1992,93,94,95,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc. +/* Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -85,6 +85,31 @@ #endif +/* The standard library needs the functions from the ISO C90 standard + in the std namespace. At the same time we want to be safe for + future changes and we include the ISO C99 code in the non-standard + namespace __c99. The C++ wrapper header take case of adding the + definitions to the global namespace. */ +#if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES +# define __BEGIN_NAMESPACE_STD namespace std { +# define __END_NAMESPACE_STD } +# define __USING_NAMESPACE_STD(name) using std::name; +# define __BEGIN_NAMESPACE_C99 namespace __c99 { +# define __END_NAMESPACE_C99 } +# define __USING_NAMESPACE_C99(name) using __c99::name; +#else +/* For compatibility we do not add the declarations into any + namespace. They will end up in the global namespace which is what + old code expects. */ +# define __BEGIN_NAMESPACE_STD +# define __END_NAMESPACE_STD +# define __USING_NAMESPACE_STD(name) +# define __BEGIN_NAMESPACE_C99 +# define __END_NAMESPACE_C99 +# define __USING_NAMESPACE_C99(name) +#endif + + /* Support for bounded pointers. */ #ifndef __BOUNDED_POINTERS__ # define __bounded /* nothing */ @@ -124,7 +149,8 @@ #if defined __GNUC__ && __GNUC__ >= 2 # define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias)) -# define __ASMNAME(cname) __C_SYMBOL_PREFIX__ cname +# define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname) +# define __ASMNAME2(prefix, cname) __STRING (prefix) cname /* #elif __SOME_OTHER_COMPILER__ @@ -159,6 +185,24 @@ # define __attribute_pure__ /* Ignore */ #endif +/* At some point during the gcc 3.1 development the `used' attribute + for functions was introduced. We don't want to use it unconditionally + (although this would be possible) since it generates warnings. */ +#if __GNUC_PREREQ (3,1) +# define __attribute_used__ __attribute__ ((__used__)) +# define __attribute_noinline__ __attribute__ ((__noinline__)) +#else +# define __attribute_used__ __attribute__ ((__unused__)) +# define __attribute_noinline__ /* Ignore */ +#endif + +/* gcc allows marking deprecated functions. */ +#if __GNUC_PREREQ (3,2) +# define __attribute_deprecated__ __attribute__ ((__deprecated__)) +#else +# define __attribute_deprecated__ /* Ignore */ +#endif + /* At some point during the gcc 2.8 development the `format_arg' attribute for functions was introduced. We don't want to use it unconditionally (although this would be possible) since it generates warnings. |