Export <linux/a.out.h> to userspace again.

This seems to have been removed accidentally in commit
ed7b1889da256977574663689b598d88950bbd23 ("Unexport asm/page.h"), but
wasn't supposed to have been -- the original patch at
http://lkml.org/lkml/2007/10/30/144 just moved it from $(header-y) to
$(unifdef-y)

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

authored by David Woodhouse and committed by Linus Torvalds e53d6a15 9a8ea369

+3
+3
include/linux/Kbuild
··· 166 unifdef-y += adb.h 167 unifdef-y += adfs_fs.h 168 unifdef-y += agpgart.h 169 unifdef-y += apm_bios.h 170 unifdef-y += atalk.h 171 unifdef-y += atmdev.h
··· 166 unifdef-y += adb.h 167 unifdef-y += adfs_fs.h 168 unifdef-y += agpgart.h 169 + ifeq ($(wildcard include/asm-$(SRCARCH)/a.out.h),include/asm-$(SRCARCH)/a.out.h) 170 + unifdef-y += a.out.h 171 + endif 172 unifdef-y += apm_bios.h 173 unifdef-y += atalk.h 174 unifdef-y += atmdev.h