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2024-07-09features.h: add clang prerequisite macroMarcus Haehnel
This can be used to guard features for specific clang versions. Signed-off-by: Marcus Haehnel <marcus.haehnel@kernkonzept.com>
2024-04-30Define __USE_TIME_BITS64 when it is necessary.Dmitry Chestnykh
Glibc and musl both defines this macro. Glibc defines it for 64-bit time_t on 32-bit arch and for 64-bit architectures. Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
2024-02-18features.h: Rework _DEFAULT_SOURCEPaul Cercueil
The (glibc) documentation for _DEFAULT_SOURCE states: The "default" definitions comprise those required by POSIX.1-2008 and ISO C99, as well as various definitions originally derived from BSD and System V. On glibc 2.19 and earlier, these defaults were approximately equivalent to explicitly defining the following: cc -D_BSD_SOURCE -D_SVID_SOURCE -D_POSIX_C_SOURCE=200809 It also states that _BSD_SOURCE and _SVID_SOURCE are deprecated, and have the same effect as setting _DEFAULT_SOURCE. Therefore, when any of _BSD_SOURCE, _SVID_SOURCE or _DEFAULT_SOURCE is set, the three macros should be set, and POSIX 2008.09 compatibility should be enabled. Signed-off-by: Paul Cercueil <paul@crapouillou.net>
2018-03-01fix issue with LDSO_GNU_HASH_SUPPORTWaldemar Brodkorb
Under Fedora 27 there is a problem with the existing ld check. Binutils ld segfaults. Add a glibc compat macro to complete the build on Fedora. Signed-off-by: Sven Anders <anders@anduras.de>
2017-11-19remove unused FORTIFY code fragmentsWaldemar Brodkorb
2017-06-22remove __FAVOR_BSDWaldemar Brodkorb
Remove __FAVOR_BSD and sync with GNU C library Some issues compiling knock application fixed. Reported-By: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-06-01include/features.h: add _DEFAULT_SOURCE macroAnthony G. Basile
man feature_test_macros(7) specifies that _BSD_SOURCE and _SVID_SOURCE have been deprecated in favor of _DEFAULT_SOURCE since libc 2.20. Specifying either of the former is now equivalent to specifying just the latter. We add this macro to conform to this standard, but do not add the compiler warning to maintain full backwards compatibility with earlier version of glibc and uclibc. Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
2017-05-07sync features.h with GNU C library, fixes gcc 7.1 toolchain creationWaldemar Brodkorb
2016-11-27remove UCLIBC_HAS_LFSWaldemar Brodkorb
2015-12-17Revert "glibc compat: bump glibc minor version"Waldemar Brodkorb
This reverts commit 4a05ed87ceb946608100642121c32e642b58cd0d. This breaks SSP detection for gcc, which might be problematic for some projects. Revert it after some discussion with buildroot and openembedded people.
2015-08-14glibc compat: bump glibc minor versionWaldemar Brodkorb
See this discussion: http://lists.busybox.net/pipermail/buildroot/2015-August/137229.html Should help to fix compile issues with boost for ARC.
2012-11-18Replace FSF snail mail address with URLsMike Frysinger
This matches a similar change made to glibc. No functional changes here. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-03-09guard *_chk() related stuff with UCLIBC_HAS_FORTIFYPeter S. Mazinger
Guard x86_64 memset_chk/memcpy_chk be guarded by UCLIBC_HAS_FORTIFY. Compile ssp.c if one of SSP/FORTIFY is defined. Guard __chk_fail() with UCLIBC_HAS_FORTIFY and move its prototype to libc-internal.h. Disable _FORTIFY_SOURCE if UCLIBC_HAS_FORTIFY is not set. The config option itself is omitted on purpose, headers need to be reviewed and generic *_chk() functions need to be first provided. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-03-03make it possible to compile with -std=gnu99/c99 and use extern inlinesPeter S. Mazinger
When compiled with -std=gnu99/c99 __GNUC_GNU_INLINE__ is not defined Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2009-11-19features.h: reorganizePeter S. Mazinger
Reorganize so uClibc related changes are better seen when syncing with glibc. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-19help broken apps to detect __GLIBC__ headersPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-19update headers and disable prototypesPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-19move __linux__ to libc-internal.hPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-19rm uClibc_arch_features.h on installPeter S. Mazinger
uClibc_arch_features.h is included already by libc-symbols.h. If gcc needs it, fix gcc. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-07-21s/UCLIBC_INTERNAL/_LIBC/gDenys Vlasenko
Undo my old mistake. I added UCLIBC_INTERNAL define, but later I realized _LIBC is doing exactly the same thing. This change converts all usages of UCLIBC_INTERNAL to _LIBC, removing all instances of UCLIBC_INTERNAL. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-20first pass at implementing *at funcsMike Frysinger
Tested basic functionality with coreutils and things seem to work. At least gives us a basis to jump from. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-21- remove unavailable functionality upon request (Peter Mazinger)Bernhard Reutner-Fischer
2008-12-13features.h: add TODO (changing __OPTIMIZE_SIZE__ is a wrong thing to do)Denis Vlasenko
2008-12-13*: document __USE_EXTERN_INLINES better;Denis Vlasenko
fix uclibc build if it is forcibly enabled
2008-09-06- for extern inline, also take __extern_inline and __GNUC_GNU_INLINE__ into ↵Bernhard Reutner-Fischer
account
2007-09-15drop __user hack for crappy kernel headers and document the __linux__ greaseMike Frysinger
2006-11-29- honor __UCLIBC_HAS_LFS__Bernhard Reutner-Fischer
2006-05-12cut out _FORTIFY_SOURCEMike Frysinger
2006-02-23Correct typoPeter S. Mazinger
2006-02-23Sync w/ glibc, disabling *at interfacesPeter S. Mazinger
2006-01-19move a bunch of arch-specific checks out of common files and into an arch ↵Mike Frysinger
specific header file to make porting/updates a lot easier
2005-10-11Change __OPTIMIZE__ > 0 to defined(__OPTIMIZE__) as in glibc-2.3.5.Peter S. Mazinger
2005-09-21merge some misc stuff from glibcMike Frysinger
2005-09-21move misc internal definitions to a sep file to minimize differences with ↵Mike Frysinger
features.h from glibc
2005-08-10In Bug 364 by hassold:Mike Frysinger
Configuration symbol __UCLIBC_HAS_WCHAR__ is tested as defined line 249 of features.h, whereas header bits/uClibc_Config.h, where it is (eventually) defined, is not yet included (line 267). As a consequence, symbol __STDC_ISO_10646__ is never defined, and several programs believe C libary hsa no wchar support.
2005-01-11newer linux headers define __cast__ in compiler.h so lets fake it tooMike Frysinger
2004-10-27Arrange to hide uClibc internalsEric Andersen
2004-07-30Cleanup some dead wood in the header filesEric Andersen
2004-04-20Cope with gcc 3.4's more aggressive persuit of attribute unusedEric Andersen
2004-01-02Cope with 2.6.x headersEric Andersen
2003-11-21prevent some needless warnings when building w/2.6.x kernel headersEric Andersen
2003-09-09sigh. The cris compiler doesn't do link_warning's....Eric Andersen
2003-09-03Only define __STDC_ISO_10646__ if wide char support is enabled.Manuel Novoa III
2003-08-22Avoid gratuitous conflicts when used with kernel headersEric Andersen
2003-08-11also carefully booleanize the false valueEric Andersen
2003-08-10silly me, thats not going to work.Eric Andersen
2003-08-10An even simpler likelyEric Andersen
2003-08-10Update likely() to cope with truth values other than 1Eric Andersen
2003-02-17Patch from Stefan Allius:Eric Andersen
I patched the link_warning macro in features.h to fix warnings like: locale.c:358: warning: `__evoke_link_warning_localeconv' defined but not used
2002-11-09Make sure we have __linux__ definedEric Andersen
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