xen-unstable.hg 488:de57c3f218fb
"xen, x86: Track foreign and I/O mappings with a new pte flag, and do"
seems to cause a build failure on at least x86_64.
# make mrproper
# hg checkout de57c3f218fb
# cp buildconfigs/linux-defconfig_xen0_x86_32 .config
# make
...
 CHK include/linux/version.h
 CHK include/linux/utsrelease.h
 CC init/main.o
In file included from include/asm/mach-xen/asm/pgtable.h:261,
 from include/linux/bootmem.h:8,
 from init/main.c:29:
include/asm/mach-xen/asm/pgtable-2level.h: In function ‘ptep_get_and_clear’:
include/asm/mach-xen/asm/pgtable-2level.h:48: error: conversion to non-scalar 
type requested
In file included from include/linux/bootmem.h:8,
 from init/main.c:29:
include/asm/mach-xen/asm/pgtable.h: In function ‘pte_modify’:
include/asm/mach-xen/asm/pgtable.h:349: error: conversion to non-scalar type 
requested
make[1]: *** [init/main.o] Error 1
make: *** [init] Error 2
# gcc --version
gcc (GCC) 4.2.3 (Debian 4.2.3-2)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-- 
Horms
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