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authorZack Weinberg <zackw@panix.com>2016-05-10 11:07:42 -0400
committerZack Weinberg <zackw@panix.com>2016-08-03 15:28:49 -0400
commitdbab6577c6684c62bd2521c1c29dc25c3cac966f (patch)
tree99009b6d1ef5a0aa9579fb198f77c031dbb84be3 /NEWS
parent63eb8df85a17f7f966d4daa4cf44c8e956636a86 (diff)
downloadglibc-dbab6577c6684c62bd2521c1c29dc25c3cac966f.tar.gz
Deprecate inclusion of <sys/sysmacros.h> by <sys/types.h>
The macros defined by <sys/sysmacros.h> are not part of POSIX nor XSI, and their names frequently collide with user code; see for instance glibc bug 19239 and Red Hat bug 130601. <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the problem. * NEWS: Inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated. * misc/sys/sysmacros.h: If __SYSMACROS_DEPRECATED_INCLUSION is defined, define major, minor, and makedev to issue deprecation warnings on use. If __SYSMACROS_DEPRECATED_INCLUSION is *not* defined, suppress previously-activated deprecation warnings for these macros and prevent subsequent inclusions of this header from having any effect. * posix/sys/types.h: Define __SYSMACROS_DEPRECATED_INCLUSION before including <sys/sysmacros.h>, and undefine it again afterward.
Diffstat (limited to 'NEWS')
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diff --git a/NEWS b/NEWS
index 495bde01be..25c771df2e 100644
--- a/NEWS
+++ b/NEWS
@@ -17,6 +17,16 @@ Version 2.25
from that TS. Note that most features from that TS are not supported by
the GNU C Library.
+* The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated. This
+ means that in a future release, the macros “major”, “minor”, and “makedev”
+ will only be available from <sys/sysmacros.h>.
+
+ These macros are not part of POSIX nor XSI, and their names frequently
+ collide with user code; see for instance glibc bug 19239 and Red Hat bug
+ 130601. <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code
+ presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the
+ problem.
+
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