zfs/lib
Olaf Faaland cd2209b75e glibc 2.5 compat: use correct header for makedev() et al.
In glibc 2.5, makedev(), major(), and minor() are defined in
sys/sysmacros.h.  They are also defined in types.h for backward
compatability, but using these definitions triggers a compile warning.
This breaks the ZFS build, as it builds with -Werror.

autoconf email threads indicate these macros may be defined in
sys/mkdev.h in some cases.

This commit adds configure checks to detect where makedev() is defined:
  sys/sysmacros.h
  sys/mkdev.h

It assumes major() and minor() are defined in the same place.

The libspl types.h then includes
	sys/sysmacros.h (preferred) or
	sys/mkdev.h (2nd choice)
if one of those defines makedev().

This is done before including the system types.h.

An alternative would be to remove uses of major, minor, and makedev,
instead comparing the st_dev returned from stat64.  These configure
checks would then be unnecessary.

This change revealed that __NORETURN was being defined unnecessarily in
libspl/include/sys/sysmacros.h.  That definition is removed.

The files in which __NORETURN are used all include types.h, and so all
will get the definition provided by feature_tests.h

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #5945
2017-07-06 15:25:39 -07:00
..
libavl Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libefi Add support for s390[x]. 2016-03-22 17:54:06 -07:00
libnvpair Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libshare Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libspl glibc 2.5 compat: use correct header for makedev() et al. 2017-07-06 15:25:39 -07:00
libunicode Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libuutil Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libzfs Fix import finding spare/l2cache when path changes 2017-06-09 14:05:15 -07:00
libzfs_core Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
libzpool Add support for asynchronous zvol minor operations 2016-03-22 18:08:04 -07:00
Makefile.am Illumos #2882, #2883, #2900 2013-09-04 15:49:00 -07:00