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| author | Joseph Myers <joseph@codesourcery.com> | 2015-11-05 21:19:37 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-11-05 21:19:37 +0000 |
| commit | f248238cf43bd751db29e6f151d6da7645337ff5 (patch) | |
| tree | a27ff09a2c76a490ee7642b03ddb39aa60e121bf /ChangeLog | |
| parent | 8fed86556b7e162d2926f0ba6a573ed193ff882f (diff) | |
| download | glibc-f248238cf43bd751db29e6f151d6da7645337ff5.zip glibc-f248238cf43bd751db29e6f151d6da7645337ff5.tar.gz glibc-f248238cf43bd751db29e6f151d6da7645337ff5.tar.bz2 | |
Fix features.h for -Wundef (bug 19212).
features.h is not clean with -Wundef (for the installed header, of
course this only appears with -Wsystem-headers). In ISO C standards
modes, you get a series of warnings / errors relating to
_POSIX_C_SOURCE and _XOPEN_SOURCE not being defined when tested in
standards mode and uses #undef _GNU_SOURCE to avoid the default
_GNU_SOURCE from libc-symbols.h. This patch changes the relevant #if
conditionals to avoid these warnings / errors.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
[BZ #19212]
* include/features.h [(_XOPEN_SOURCE - 0) >= 500]: Change
conditional to [defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >=
500].
[_POSIX_C_SOURCE >= 1]: Change conditional to [defined
_POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1].
[(_POSIX_C_SOURCE - 0) >= 199309L]: Change conditional to [defined
_POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L].
[(_POSIX_C_SOURCE - 0) >= 199506L]: Change conditional to [defined
_POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L].
[(_POSIX_C_SOURCE - 0) >= 200112L]: Change conditional to [defined
_POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L].
[(_POSIX_C_SOURCE - 0) >= 200809L]: Change conditional to [defined
_POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L].
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -1,5 +1,20 @@ 2015-11-05 Joseph Myers <joseph@codesourcery.com> + [BZ #19212] + * include/features.h [(_XOPEN_SOURCE - 0) >= 500]: Change + conditional to [defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= + 500]. + [_POSIX_C_SOURCE >= 1]: Change conditional to [defined + _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1]. + [(_POSIX_C_SOURCE - 0) >= 199309L]: Change conditional to [defined + _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L]. + [(_POSIX_C_SOURCE - 0) >= 199506L]: Change conditional to [defined + _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L]. + [(_POSIX_C_SOURCE - 0) >= 200112L]: Change conditional to [defined + _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L]. + [(_POSIX_C_SOURCE - 0) >= 200809L]: Change conditional to [defined + _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L]. + [BZ #19209] * math/bits/math-finite.h (ldexp): Remove declaration. (ldexpf): Likewise. |