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author | Zack Weinberg <zackw@panix.com> | 2016-11-14 08:34:59 -0500 |
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committer | Zack Weinberg <zackw@panix.com> | 2016-11-14 08:34:59 -0500 |
commit | 809b72df6c90303aa3622a28f2837ec6c518290d (patch) | |
tree | b3c7546831817355514ffd37d522acc43f6899b2 /ChangeLog.17 | |
parent | 14f95a420313ee745b80fe71a0fe6f61b46b327c (diff) | |
download | glibc-809b72df6c90303aa3622a28f2837ec6c518290d.tar.gz glibc-809b72df6c90303aa3622a28f2837ec6c518290d.tar.xz glibc-809b72df6c90303aa3622a28f2837ec6c518290d.zip |
[BZ #19239] Issue deprecation warnings on macro expansion.
By using __glibc_macro_warning instead of __attribute_deprecated__, we get the deprecation warnings whenever the macros are expanded, not just when they compile to a function call. This is important for unintentional uses like the test case in #19239 (C++ var(value) initialization syntax, with a variable named "major"). It's also simpler, because __REDIRECT is no longer required. * misc/sys/sysmacros.h (__SYSMACROS_DM, __SYSMACROS_DM1): New macros. (__SYSMACROS_DEPRECATION_MSG, __SYSMACROS_FST_DECL_TEMPL) (__SYSMACROS_FST_IMPL_TEMPL): Delete. (major, minor, makedev): Use __SYSMACROS_DM in definition, instead of redirected function names. * misc/sys/cdefs.h (__glibc_macro_warning): Activate for clang >= 3.5 as well. Document that MESSAGE must be a single string literal.
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