[PATCH] signal: Use correct type for si_band in siginfo_t [BZ #23562]

[Joseph Myers]

This has broken the conform/ tests for SPARC, so that you now get:

FAIL: conform/POSIX2008/signal.h/conform
FAIL: conform/POSIX2008/sys/wait.h/conform
FAIL: conform/UNIX98/signal.h/conform
FAIL: conform/UNIX98/sys/wait.h/conform
FAIL: conform/XOPEN2K/signal.h/conform
FAIL: conform/XOPEN2K/sys/wait.h/conform
FAIL: conform/XOPEN2K8/signal.h/conform
FAIL: conform/XOPEN2K8/sys/wait.h/conform
FAIL: conform/XPG42/signal.h/conform
FAIL: conform/XPG42/sys/wait.h/conform

because si_band no longer has the POSIX-specified type.

For 32-bit SPARC you should be able to use long int and so avoid the 
failures, as that won't change the layout.  For 64-bit SPARC this would be 
a case where the kernel having the wrong type means you need an 
appropriately conditioned and commented XFAIL in signal.h-data and 
sys/wait.h-data (and appropriately conditioned and commented 
conformtest-xfail-conds definition in a relevant sysdeps Makefile to 
define the condition that's used in the conform/ data changes).

-- 
Joseph S. Myers
joseph@codesourcery.com