* gdb.base/a1-selftest.exp: Change "i*86-*-sysv4" xfail for

	* gdb.base/a1-selftest.exp: Change "i*86-*-sysv4" xfail for
	"backtrace through signal handler" to "i*86-*-sysv4*".
	* gdb.base/signals.exp: Add xfail for "'next' behaved as
	continue" case.  Add "known SVR4 bug" to fail message.
	Add "i*86-*-bsdi2.0" xfail for "handle all print".
	Add "i*86-*-bsdi2.0" xfail for "backtrace in signals_tests_1".
	* gdb.base/ptype.exp: Add "i*86-*-sysv4*" xfail for
	"whatis unnamed typedef'd enum..." and "ptype t_char_array".
	* gdb.base/langs.exp: Add "i*86-*-sysv4*" xfail for
	"up to foo in langs.exp", "show language at foo in
	langs.exp", "up to cppsub_ in langs.exp", "show
	language at cppsub_ in langs.exp", "up to fsub in
	langs.exp", and "show language at fsub in langs.exp".
	* gdb.base/corefile.exp: Add "i*86-*-sysv4*" to xfail for
	"bactrace in corefile.exp".
	* gdb.base/callfuncs.exp: Change xfail to "i*86-*-*" for
	"call inferior function with struct - returns float" and
	"call inferior function with struct - returns double".