diff --git a/Makefile b/Makefile
index fce530a..7a06c16 100644
--- a/Makefile
+++ b/Makefile
@@ -921,8 +921,20 @@
 INSTALL_HDR_PATH=$(objtree)/usr
 export INSTALL_HDR_PATH
 
+HDRARCHES=$(filter-out generic,$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
+
+PHONY += headers_install_all
+headers_install_all: include/linux/version.h scripts_basic FORCE
+	$(Q)$(MAKE) $(build)=scripts scripts/unifdef
+	$(Q)for arch in $(HDRARCHES); do \
+	 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
+	 done
+
 PHONY += headers_install
 headers_install: include/linux/version.h scripts_basic FORCE
+	@if [ ! -r include/asm-$(ARCH)/Kbuild ]; then \
+	  echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \
+	  exit 1 ; fi
 	$(Q)$(MAKE) $(build)=scripts scripts/unifdef
 	$(Q)rm -rf $(INSTALL_HDR_PATH)/include
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include
@@ -1107,13 +1119,17 @@
 	@echo  '  cscope	  - Generate cscope index'
 	@echo  '  kernelrelease	  - Output the release version string'
 	@echo  '  kernelversion	  - Output the version stored in Makefile'
-	@echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'
+	@if [ -r include/asm-$(ARCH)/Kbuild ]; then \
+	 echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
+	 fi
 	@echo  '                    (default: $(INSTALL_HDR_PATH))'
 	@echo  ''
 	@echo  'Static analysers'
 	@echo  '  checkstack      - Generate a list of stack hogs'
 	@echo  '  namespacecheck  - Name space analysis on compiled kernel'
-	@echo  '  headers_check   - Sanity check on exported headers'
+	@if [ -r include/asm-$(ARCH)/Kbuild ]; then \
+	 echo  '  headers_check   - Sanity check on exported headers'; \
+	 fi
 	@echo  ''
 	@echo  'Kernel packaging:'
 	@$(MAKE) $(build)=$(package-dir) help
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 22dc9c2..f203131 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -26,6 +26,7 @@
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 #include <asm/elf.h>
+#include <asm/ubc.h>
 
 static int hlt_counter=0;
 
diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h
index ae7baa6..17f0c65 100644
--- a/include/asm-arm/elf.h
+++ b/include/asm-arm/elf.h
@@ -8,9 +8,6 @@
 
 #include <asm/ptrace.h>
 #include <asm/user.h>
-#ifdef __KERNEL
-#include <asm/procinfo.h>
-#endif
 
 typedef unsigned long elf_greg_t;
 typedef unsigned long elf_freg_t[3];
@@ -32,11 +29,6 @@
 typedef struct user_fp elf_fpregset_t;
 
 /*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ( ((x)->e_machine == EM_ARM) && (ELF_PROC_OK((x))) )
-
-/*
  * These are used to set parameters in the core dumps.
  */
 #define ELF_CLASS	ELFCLASS32
@@ -47,6 +39,14 @@
 #endif
 #define ELF_ARCH	EM_ARM
 
+#ifdef __KERNEL__
+#include <asm/procinfo.h>
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ( ((x)->e_machine == EM_ARM) && (ELF_PROC_OK((x))) )
+
 #define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE	4096
 
@@ -83,8 +83,6 @@
 extern char elf_platform[];
 #define ELF_PLATFORM	(elf_platform)
 
-#ifdef __KERNEL__
-
 /*
  * 32-bit code is always OK.  Some cpus can do 26-bit, some can't.
  */
diff --git a/include/asm-arm/page.h b/include/asm-arm/page.h
index b721270..02bd3ee 100644
--- a/include/asm-arm/page.h
+++ b/include/asm-arm/page.h
@@ -11,13 +11,13 @@
 #define _ASMARM_PAGE_H
 
 
+#ifdef __KERNEL__
+
 /* PAGE_SHIFT determines the page size */
 #define PAGE_SHIFT		12
 #define PAGE_SIZE		(1UL << PAGE_SHIFT)
 #define PAGE_MASK		(~(PAGE_SIZE-1))
 
-#ifdef __KERNEL__
-
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
 
diff --git a/include/asm-arm26/Kbuild b/include/asm-arm26/Kbuild
deleted file mode 100644
index c68e168..0000000
--- a/include/asm-arm26/Kbuild
+++ /dev/null
@@ -1 +0,0 @@
-include include/asm-generic/Kbuild.asm
diff --git a/include/asm-cris/Kbuild b/include/asm-cris/Kbuild
index c68e168..14498d5 100644
--- a/include/asm-cris/Kbuild
+++ b/include/asm-cris/Kbuild
@@ -1 +1,5 @@
 include include/asm-generic/Kbuild.asm
+
+header-y += arch-v10/ arch-v32/
+
+unifdef-y += rs485.h
diff --git a/include/asm-cris/arch-v10/Kbuild b/include/asm-cris/arch-v10/Kbuild
new file mode 100644
index 0000000..d7f27dc
--- /dev/null
+++ b/include/asm-cris/arch-v10/Kbuild
@@ -0,0 +1,2 @@
+header-y += ptrace.h
+header-y += user.h
diff --git a/include/asm-cris/arch-v32/Kbuild b/include/asm-cris/arch-v32/Kbuild
new file mode 100644
index 0000000..d7f27dc
--- /dev/null
+++ b/include/asm-cris/arch-v32/Kbuild
@@ -0,0 +1,2 @@
+header-y += ptrace.h
+header-y += user.h
diff --git a/include/asm-cris/byteorder.h b/include/asm-cris/byteorder.h
index a1a222a..0cd9db1 100644
--- a/include/asm-cris/byteorder.h
+++ b/include/asm-cris/byteorder.h
@@ -3,14 +3,15 @@
 
 #ifdef __GNUC__
 
+#ifdef __KERNEL__
 #include <asm/arch/byteorder.h>
 
 /* defines are necessary because the other files detect the presence
  * of a defined __arch_swab32, not an inline
  */
-
 #define __arch__swab32(x) ___arch__swab32(x)
 #define __arch__swab16(x) ___arch__swab16(x)
+#endif /* __KERNEL__ */
 
 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
 #  define __BYTEORDER_HAS_U64__
diff --git a/include/asm-cris/elf.h b/include/asm-cris/elf.h
index 87a60bd..96a40c1 100644
--- a/include/asm-cris/elf.h
+++ b/include/asm-cris/elf.h
@@ -5,7 +5,6 @@
  * ELF register definitions..
  */
 
-#include <asm/arch/elf.h>
 #include <asm/user.h>
 
 #define R_CRIS_NONE             0
@@ -46,6 +45,9 @@
 #define ELF_DATA	ELFDATA2LSB
 #define ELF_ARCH	EM_CRIS
 
+#ifdef __KERNEL__
+#include <asm/arch/elf.h>
+
 /* The master for these definitions is {binutils}/include/elf/cris.h:  */
 /* User symbols in this file have a leading underscore.  */
 #define EF_CRIS_UNDERSCORE		0x00000001
@@ -87,8 +89,8 @@
 
 #define ELF_PLATFORM  (NULL)
 
-#ifdef __KERNEL__
 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
-#endif
+
+#endif /* __KERNEL__ */
 
 #endif
diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h
index 81832e9..9f13c32 100644
--- a/include/asm-cris/page.h
+++ b/include/asm-cris/page.h
@@ -1,6 +1,8 @@
 #ifndef _CRIS_PAGE_H
 #define _CRIS_PAGE_H
 
+#ifdef __KERNEL__
+
 #include <asm/arch/page.h>
 
 /* PAGE_SHIFT determines the page size */
@@ -12,8 +14,6 @@
 #endif
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
-#ifdef __KERNEL__
-
 #define clear_page(page)        memset((void *)(page), 0, PAGE_SIZE)
 #define copy_page(to,from)      memcpy((void *)(to), (void *)(from), PAGE_SIZE)
 
@@ -73,10 +73,10 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
+
 #endif /* _CRIS_PAGE_H */
 
diff --git a/include/asm-cris/posix_types.h b/include/asm-cris/posix_types.h
index 6d26fee..7b9ed22 100644
--- a/include/asm-cris/posix_types.h
+++ b/include/asm-cris/posix_types.h
@@ -6,8 +6,6 @@
 #ifndef __ARCH_CRIS_POSIX_TYPES_H
 #define __ARCH_CRIS_POSIX_TYPES_H
 
-#include <asm/bitops.h>
-
 /*
  * This file is generally used by user-level software, so you need to
  * be a little careful about namespace pollution etc.  Also, we cannot
@@ -53,9 +51,8 @@
 #endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
 } __kernel_fsid_t;
 
-/* should this ifdef be here ?  */
-
-#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+#ifdef __KERNEL__
+#include <asm/bitops.h>
 
 #undef	__FD_SET
 #define __FD_SET(fd,fdsetp) set_bit(fd, (void *)(fdsetp))
@@ -69,6 +66,6 @@
 #undef	__FD_ZERO
 #define __FD_ZERO(fdsetp) memset((void *)(fdsetp), 0, __FDSET_LONGS << 2)
 
-#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+#endif /* __KERNEL__ */
 
 #endif /* __ARCH_CRIS_POSIX_TYPES_H */
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index c2954e9..7372efa 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -1,8 +1,6 @@
 #ifndef _ASM_CRIS_UNISTD_H_
 #define _ASM_CRIS_UNISTD_H_
 
-#include <asm/arch/unistd.h>
-
 /*
  * This file contains the system call numbers, and stub macros for libc.
  */
@@ -299,6 +297,7 @@
 
 #define NR_syscalls 289
 
+#include <asm/arch/unistd.h>
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
@@ -322,7 +321,6 @@
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
-#endif
 
 #ifdef __KERNEL_SYSCALLS__
 
diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h
index d673077..3b4f290 100644
--- a/include/asm-h8300/page.h
+++ b/include/asm-h8300/page.h
@@ -1,6 +1,7 @@
 #ifndef _H8300_PAGE_H
 #define _H8300_PAGE_H
 
+#ifdef __KERNEL__
 
 /* PAGE_SHIFT determines the page size */
 
@@ -8,8 +9,6 @@
 #define PAGE_SIZE	(1UL << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
-#ifdef __KERNEL__
-
 #include <asm/setup.h>
 
 #ifndef __ASSEMBLY__
@@ -76,9 +75,9 @@
 
 #endif /* __ASSEMBLY__ */
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
+
 #endif /* _H8300_PAGE_H */
diff --git a/include/asm-m32r/page.h b/include/asm-m32r/page.h
index 9688be0..404a4c2 100644
--- a/include/asm-m32r/page.h
+++ b/include/asm-m32r/page.h
@@ -87,10 +87,9 @@
 
 #define devmem_is_allowed(x) 1
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
 #endif /* _ASM_M32R_PAGE_H */
 
diff --git a/include/asm-m32r/ptrace.h b/include/asm-m32r/ptrace.h
index a07fa90..2d2a6c9 100644
--- a/include/asm-m32r/ptrace.h
+++ b/include/asm-m32r/ptrace.h
@@ -12,8 +12,6 @@
  *   Copyright (C) 2001-2002, 2004  Hirokazu Takata <takata at linux-m32r.org>
  */
 
-#include <asm/m32r.h>		/* M32R_PSW_BSM, M32R_PSW_BPM */
-
 /* 0 - 13 are integer registers (general purpose registers).  */
 #define PT_R4		0
 #define PT_R5		1
@@ -140,6 +138,8 @@
 
 #ifdef __KERNEL__
 
+#include <asm/m32r.h>		/* M32R_PSW_BSM, M32R_PSW_BPM */
+
 #define __ARCH_SYS_PTRACE	1
 
 #if defined(CONFIG_ISA_M32R2) || defined(CONFIG_CHIP_VDEC2)
diff --git a/include/asm-m32r/signal.h b/include/asm-m32r/signal.h
index e750045..65423be 100644
--- a/include/asm-m32r/signal.h
+++ b/include/asm-m32r/signal.h
@@ -6,7 +6,6 @@
 /* orig : i386 2.4.18 */
 
 #include <linux/types.h>
-#include <linux/linkage.h>
 #include <linux/time.h>
 #include <linux/compiler.h>
 
diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h
index cc31790..89f376e 100644
--- a/include/asm-m32r/unistd.h
+++ b/include/asm-m32r/unistd.h
@@ -3,8 +3,6 @@
 
 /* $Id$ */
 
-#include <asm/syscall.h>	/* SYSCALL_* */
-
 /*
  * This file contains the system call numbers.
  */
@@ -303,6 +301,8 @@
  * <asm-m32r/errno.h>
  */
 
+#include <asm/syscall.h>	/* SYSCALL_* */
+
 #define __syscall_return(type, res) \
 do { \
 	if ((unsigned long)(res) >= (unsigned long)(-(124 + 1))) { \
diff --git a/include/asm-m32r/user.h b/include/asm-m32r/user.h
index 2ffd0c6..1ad4ded 100644
--- a/include/asm-m32r/user.h
+++ b/include/asm-m32r/user.h
@@ -8,7 +8,6 @@
  */
 
 #include <linux/types.h>
-#include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/page.h>
 
diff --git a/include/asm-m68knommu/page.h b/include/asm-m68knommu/page.h
index a22bf5a..2a1b8bd 100644
--- a/include/asm-m68knommu/page.h
+++ b/include/asm-m68knommu/page.h
@@ -1,6 +1,7 @@
 #ifndef _M68KNOMMU_PAGE_H
 #define _M68KNOMMU_PAGE_H
 
+#ifdef __KERNEL__
 
 /* PAGE_SHIFT determines the page size */
 
@@ -8,8 +9,6 @@
 #define PAGE_SIZE	(1UL << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
-#ifdef __KERNEL__
-
 #include <asm/setup.h>
 
 #ifndef __ASSEMBLY__
@@ -76,8 +75,8 @@
 
 #endif /* __ASSEMBLY__ */
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
+
 #endif /* _M68KNOMMU_PAGE_H */
diff --git a/include/asm-s390/Kbuild b/include/asm-s390/Kbuild
index 088969d..e92b429 100644
--- a/include/asm-s390/Kbuild
+++ b/include/asm-s390/Kbuild
@@ -6,7 +6,7 @@
 header-y += tape390.h
 header-y += ucontext.h
 header-y += vtoc.h
-header-y += z90crypt.h
+header-y += zcrypt.h
 
 unifdef-y += cmb.h
 unifdef-y += debug.h
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index 5a057b0..6f7eb8a 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -112,9 +112,8 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
 #endif /* __ASM_SH_PAGE_H */
diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
index 792fc35..ed358a3 100644
--- a/include/asm-sh/ptrace.h
+++ b/include/asm-sh/ptrace.h
@@ -1,8 +1,6 @@
 #ifndef __ASM_SH_PTRACE_H
 #define __ASM_SH_PTRACE_H
 
-#include <asm/ubc.h>
-
 /*
  * Copyright (C) 1999, 2000  Niibe Yutaka
  *
diff --git a/include/asm-sh64/page.h b/include/asm-sh64/page.h
index 34fb347..472089a 100644
--- a/include/asm-sh64/page.h
+++ b/include/asm-sh64/page.h
@@ -112,9 +112,8 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
 #endif /* __ASM_SH64_PAGE_H */
diff --git a/include/asm-sh64/shmparam.h b/include/asm-sh64/shmparam.h
index d3a99a4..1bb820c 100644
--- a/include/asm-sh64/shmparam.h
+++ b/include/asm-sh64/shmparam.h
@@ -2,19 +2,11 @@
 #define __ASM_SH64_SHMPARAM_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/shmparam.h
- *
- * Copyright (C) 2000, 2001  Paolo Alberelli
- *
+ * Set this to a sensible safe default, we'll work out the specifics for the
+ * align mask from the cache descriptor at run-time.
  */
+#define	SHMLBA	0x4000
 
-#include <asm/cache.h>
-
-/* attach addr a multiple of this */
-#define	SHMLBA	(cpu_data->dcache.sets * L1_CACHE_BYTES)
+#define __ARCH_FORCE_SHMLBA
 
 #endif /* __ASM_SH64_SHMPARAM_H */
diff --git a/include/asm-sh64/signal.h b/include/asm-sh64/signal.h
index a5a2820..244e134 100644
--- a/include/asm-sh64/signal.h
+++ b/include/asm-sh64/signal.h
@@ -13,7 +13,6 @@
  */
 
 #include <linux/types.h>
-#include <asm/processor.h>
 
 /* Avoid too many header ordering problems.  */
 struct siginfo;
diff --git a/include/asm-sh64/user.h b/include/asm-sh64/user.h
index 8f32f39..eb3b33e 100644
--- a/include/asm-sh64/user.h
+++ b/include/asm-sh64/user.h
@@ -13,7 +13,6 @@
  */
 
 #include <linux/types.h>
-#include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/page.h>
 
diff --git a/include/asm-sparc/Kbuild b/include/asm-sparc/Kbuild
index b22b67a..c6a55cf0 100644
--- a/include/asm-sparc/Kbuild
+++ b/include/asm-sparc/Kbuild
@@ -2,20 +2,13 @@
 
 header-y += apc.h
 header-y += asi.h
-header-y += auxio.h
 header-y += bpp.h
-header-y += head.h
-header-y += ipc.h
 header-y += jsflash.h
 header-y += openpromio.h
-header-y += pbm.h
 header-y += pconf.h
-header-y += pgtsun4.h
 header-y += reg.h
 header-y += traps.h
-header-y += turbosparc.h
 header-y += vfc_ioctls.h
-header-y += winmacro.h
 
 unifdef-y += fbio.h
 unifdef-y += perfctr.h
diff --git a/include/asm-sparc/page.h b/include/asm-sparc/page.h
index 5bab8a7..ff57648 100644
--- a/include/asm-sparc/page.h
+++ b/include/asm-sparc/page.h
@@ -8,6 +8,8 @@
 #ifndef _SPARC_PAGE_H
 #define _SPARC_PAGE_H
 
+#ifdef __KERNEL__
+
 #ifdef CONFIG_SUN4
 #define PAGE_SHIFT   13
 #else
@@ -21,8 +23,6 @@
 #endif
 #define PAGE_MASK    (~(PAGE_SIZE-1))
 
-#ifdef __KERNEL__
-
 #include <asm/btfixup.h>
 
 #ifndef __ASSEMBLY__
@@ -160,9 +160,9 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* __KERNEL__ */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
+
 #endif /* _SPARC_PAGE_H */
diff --git a/include/asm-sparc64/Kbuild b/include/asm-sparc64/Kbuild
index 4b59ce4..a7f4440 100644
--- a/include/asm-sparc64/Kbuild
+++ b/include/asm-sparc64/Kbuild
@@ -8,15 +8,12 @@
 header-y += asi.h
 header-y += bbc.h
 header-y += bpp.h
+header-y += const.h
 header-y += display7seg.h
 header-y += envctrl.h
-header-y += floppy.h
 header-y += ipc.h
-header-y += kdebug.h
-header-y += mostek.h
 header-y += openprom.h
 header-y += openpromio.h
-header-y += parport.h
 header-y += pconf.h
 header-y += psrcompat.h
 header-y += pstate.h
diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
index fdf0ceb..ff736ea 100644
--- a/include/asm-sparc64/page.h
+++ b/include/asm-sparc64/page.h
@@ -3,6 +3,8 @@
 #ifndef _SPARC64_PAGE_H
 #define _SPARC64_PAGE_H
 
+#ifdef __KERNEL__
+
 #include <asm/const.h>
 
 #if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
@@ -27,8 +29,6 @@
 #define DCACHE_ALIASING_POSSIBLE
 #endif
 
-#ifdef __KERNEL__
-
 #if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
 #define HPAGE_SHIFT		22
 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
@@ -141,8 +141,7 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* !(__KERNEL__) */
-
 #include <asm-generic/page.h>
 
-#endif /* !(_SPARC64_PAGE_H) */
+#endif /* __KERNEL__ */
+#endif /* _SPARC64_PAGE_H */
diff --git a/include/asm-sparc64/shmparam.h b/include/asm-sparc64/shmparam.h
index 8c66fde..911d042 100644
--- a/include/asm-sparc64/shmparam.h
+++ b/include/asm-sparc64/shmparam.h
@@ -1,6 +1,7 @@
 /* $Id: shmparam.h,v 1.5 2001/09/24 21:17:57 kanoj Exp $ */
 #ifndef _ASMSPARC64_SHMPARAM_H
 #define _ASMSPARC64_SHMPARAM_H
+#ifdef __KERNEL__
 
 #include <asm/spitfire.h>
 
@@ -8,4 +9,5 @@
 /* attach addr a multiple of this */
 #define	SHMLBA	((PAGE_SIZE > L1DCACHE_SIZE) ? PAGE_SIZE : L1DCACHE_SIZE)
 
+#endif /* __KERNEL__ */
 #endif /* _ASMSPARC64_SHMPARAM_H */
diff --git a/include/asm-um/Kbuild b/include/asm-um/Kbuild
deleted file mode 100644
index c68e168..0000000
--- a/include/asm-um/Kbuild
+++ /dev/null
@@ -1 +0,0 @@
-include include/asm-generic/Kbuild.asm
diff --git a/include/asm-v850/page.h b/include/asm-v850/page.h
index ad03c46..d693ffb 100644
--- a/include/asm-v850/page.h
+++ b/include/asm-v850/page.h
@@ -14,6 +14,8 @@
 #ifndef __V850_PAGE_H__
 #define __V850_PAGE_H__
 
+#ifdef __KERNEL__
+
 #include <asm/machdep.h>
 
 
@@ -32,7 +34,6 @@
 #endif
 
 
-#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
 #define STRICT_MM_TYPECHECKS
@@ -122,9 +123,9 @@
 #define __va(x)		     ((void *)__phys_to_virt ((unsigned long)(x)))
 
 
-#endif /* KERNEL */
-
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* KERNEL */
+
 #endif /* __V850_PAGE_H__ */
diff --git a/include/asm-v850/param.h b/include/asm-v850/param.h
index 8d796e4..3c65bd5 100644
--- a/include/asm-v850/param.h
+++ b/include/asm-v850/param.h
@@ -14,8 +14,6 @@
 #ifndef __V850_PARAM_H__
 #define __V850_PARAM_H__
 
-#include <asm/machdep.h>	/* For HZ */
-
 #define EXEC_PAGESIZE	4096
 
 #ifndef NOGROUP
@@ -25,6 +23,8 @@
 #define MAXHOSTNAMELEN	64	/* max length of hostname */
 
 #ifdef __KERNEL__
+#include <asm/machdep.h>	/* For HZ */
+
 # define USER_HZ	100
 # define CLOCKS_PER_SEC	USER_HZ
 #endif
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 6738360..1df2ac3 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -141,7 +141,6 @@
 header-y += sockios.h
 header-y += som.h
 header-y += sound.h
-header-y += stddef.h
 header-y += synclink.h
 header-y += telephony.h
 header-y += termios.h
@@ -267,7 +266,6 @@
 unifdef-y += netfilter.h
 unifdef-y += netfilter_ipv4.h
 unifdef-y += netfilter_ipv6.h
-unifdef-y += netfilter_logging.h
 unifdef-y += net.h
 unifdef-y += netlink.h
 unifdef-y += nfs3.h
@@ -316,6 +314,7 @@
 unifdef-y += sonypi.h
 unifdef-y += soundcard.h
 unifdef-y += stat.h
+unifdef-y += stddef.h
 unifdef-y += sysctl.h
 unifdef-y += tcp.h
 unifdef-y += time.h
diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index b3a2cad..ea65dfb 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -10,11 +10,13 @@
 #define NULL ((void *)0)
 #endif
 
+#ifdef __KERNEL__
 #undef offsetof
 #ifdef __compiler_offsetof
 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
 #else
 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #endif
+#endif /* __KERNEL__ */
 
 #endif
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 8c02d2d..cac8f21 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -23,30 +23,30 @@
 
 _dst := $(if $(dst),$(dst),$(obj))
 
-.PHONY: __headersinst
-__headersinst:
-
-
 ifeq (,$(patsubst include/asm/%,,$(obj)/))
 # For producing the generated stuff in include/asm for biarch builds, include
 # both sets of Kbuild files; we'll generate anything which is mentioned in
 # _either_ arch, and recurse into subdirectories which are mentioned in either
 # arch. Since some directories may exist in one but not the other, we must
-# use '-include'.
+# use $(wildcard...). 
 GENASM := 1
 archasm	   := $(subst include/asm,asm-$(ARCH),$(obj))
 altarchasm := $(subst include/asm,asm-$(ALTARCH),$(obj))
--include $(srctree)/include/$(archasm)/Kbuild
--include $(srctree)/include/$(altarchasm)/Kbuild
+KBUILDFILES := $(wildcard $(srctree)/include/$(archasm)/Kbuild $(srctree)/include/$(altarchasm)/Kbuild)
 else
-include $(srctree)/$(obj)/Kbuild
+KBUILDFILES := $(srctree)/$(obj)/Kbuild
 endif
 
-include scripts/Kbuild.include
+include $(KBUILDFILES)
+
+include scripts/Kbuild.include 
 
 # If this is include/asm-$(ARCH) and there's no $(ALTARCH), then
 # override $(_dst) so that we install to include/asm directly.
-ifeq ($(obj)$(ALTARCH),include/asm-$(ARCH))
+# Unless $(BIASMDIR) is set, in which case we're probably doing
+# a 'headers_install_all' build and we should keep the -$(ARCH)
+# in the directory name.
+ifeq ($(obj)$(ALTARCH),include/asm-$(ARCH)$(BIASMDIR))
      _dst := include/asm
 endif
 
@@ -56,6 +56,23 @@
 header-y	:= $(filter-out %/, $(header-y))
 header-y	:= $(filter-out $(unifdef-y),$(header-y))
 
+# stamp files for header checks
+check-y		:= $(patsubst %,.check.%,$(header-y) $(unifdef-y) $(objhdr-y))
+
+# Work out what needs to be removed
+oldheaders	:= $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/*.h))
+unwanted	:= $(filter-out $(header-y) $(unifdef-y) $(objhdr-y),$(oldheaders))
+
+oldcheckstamps	:= $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/.check.*.h))
+unwanted	+= $(filter-out $(check-y),$(oldcheckstamps))
+
+# Prefix them all with full paths to $(INSTALL_HDR_PATH)
+header-y 	:= $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(header-y))
+unifdef-y 	:= $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(unifdef-y))
+objhdr-y 	:= $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(objhdr-y))
+check-y 	:= $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(check-y))
+
+
 ifdef ALTARCH
 ifeq ($(obj),include/asm-$(ARCH))
 altarch-y	:= altarch-dir
@@ -67,43 +84,47 @@
 export ARCHDEF
 export ALTARCHDEF
 
-quiet_cmd_o_hdr_install   = INSTALL $(_dst)/$@
-      cmd_o_hdr_install   = cp $(objtree)/$(obj)/$@ $(INSTALL_HDR_PATH)/$(_dst)
+quiet_cmd_o_hdr_install   = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
+      cmd_o_hdr_install   = cp $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(objtree)/$(obj)/%,$@) \
+			    $(INSTALL_HDR_PATH)/$(_dst)
 
-quiet_cmd_headers_install = INSTALL $(_dst)/$@
-      cmd_headers_install = $(HDRSED) $(srctree)/$(obj)/$@		\
-			    > $(INSTALL_HDR_PATH)/$(_dst)/$@
+quiet_cmd_headers_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
+      cmd_headers_install = $(HDRSED) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@)	\
+			    > $@
 
-quiet_cmd_unifdef	  = UNIFDEF $(_dst)/$@
-      cmd_unifdef	  = $(UNIFDEF) $(srctree)/$(obj)/$@ | $(HDRSED)	\
-                            > $(INSTALL_HDR_PATH)/$(_dst)/$@ || :
+quiet_cmd_unifdef	  = UNIFDEF $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
+      cmd_unifdef	  = $(UNIFDEF) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@) \
+				   | $(HDRSED) > $@ || :
 
-quiet_cmd_check		  = CHECK   $(_dst)/$@
+quiet_cmd_check		  = CHECK   $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/.check.%,$(_dst)/%,$@)
       cmd_check		  = $(srctree)/scripts/hdrcheck.sh		\
-                              $(INSTALL_HDR_PATH)/include		\
-			      $(INSTALL_HDR_PATH)/$(_dst)/$@
+                              $(INSTALL_HDR_PATH)/include $(subst /.check.,/,$@) $@
 
-quiet_cmd_mkdir		  = MKDIR   $@
-      cmd_mkdir		  = mkdir -p $(INSTALL_HDR_PATH)/$@
+quiet_cmd_remove	  = REMOVE  $(_dst)/$@
+      cmd_remove	  = rm -f $(INSTALL_HDR_PATH)/$(_dst)/$@
 
-quiet_cmd_gen		  = GEN     $(_dst)/$@
+quiet_cmd_mkdir		  = MKDIR   $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
+      cmd_mkdir		  = mkdir -p $@
+
+quiet_cmd_gen		  = GEN     $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
       cmd_gen		  = \
-STUBDEF=__ASM_STUB_`echo $@ | tr a-z. A-Z_`;				\
+FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@)			\
+STUBDEF=__ASM_STUB_`echo $$FNAME | tr a-z. A-Z_`;			\
 (echo "/* File autogenerated by 'make headers_install' */" ;		\
 echo "\#ifndef $$STUBDEF" ;						\
 echo "\#define $$STUBDEF" ;						\
 echo "\# if $(ARCHDEF)" ;						\
-if [ -r $(INSTALL_HDR_PATH)/include/$(archasm)/$@ ]; then		\
-	echo "\#  include <$(archasm)/$@>" ;				\
+if [ -r $(subst /$(_dst)/,/include/$(archasm)/,$@) ]; then		\
+	echo "\#  include <$(archasm)/$$FNAME>" ;			\
 else									\
-	echo "\#  error $(archasm)/$@ does not exist in"		\
+	echo "\#  error $(archasm)/$$FNAME does not exist in"		\
 			"the $(ARCH) architecture" ;			\
 fi ;									\
 echo "\# elif $(ALTARCHDEF)" ;						\
-if [ -r $(INSTALL_HDR_PATH)/include/$(altarchasm)/$@ ]; then		\
-	echo "\#  include <$(altarchasm)/$@>" ;				\
+if [ -r $(subst /$(_dst)/,/include/$(altarchasm)/,$@) ]; then		\
+	echo "\#  include <$(altarchasm)/$$FNAME>" ;			\
 else									\
-	echo "\#  error $(altarchasm)/$@ does not exist in"		\
+	echo "\#  error $(altarchasm)/$$FNAME does not exist in"	\
 			"the $(ALTARCH) architecture" ;			\
 fi ;									\
 echo "\# else" ;							\
@@ -111,37 +132,49 @@
 		 "neither $(ARCH) nor $(ALTARCH)." ;			\
 echo "\# endif" ;							\
 echo "\#endif /* $$STUBDEF */" ;					\
-) > $(INSTALL_HDR_PATH)/$(_dst)/$@
+) > $@
 
-__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y)
-
-.PHONY: $(header-y) $(unifdef-y) $(subdir-y)
+.PHONY: __headersinst __headerscheck
 
 ifdef HDRCHECK
-# Rules for checking headers
-$(objhdr-y) $(header-y) $(unifdef-y):
+__headerscheck: $(subdir-y) $(check-y)
+	@true
+
+$(check-y) : $(INSTALL_HDR_PATH)/$(_dst)/.check.%.h : $(INSTALL_HDR_PATH)/$(_dst)/%.h 
 	$(call cmd,check)
+
+# Other dependencies for $(check-y)
+-include /dev/null $(check-y)
+
+# ... but leave $(check-y) as .PHONY for now until those deps are actually correct.
+.PHONY: $(check-y)
+
 else
 # Rules for installing headers
+__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y)
+	@true
 
-$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): $(_dst)
+$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): | $(INSTALL_HDR_PATH)/$(_dst) $(unwanted)
 
-.PHONY: $(_dst)
-$(_dst):
+$(INSTALL_HDR_PATH)/$(_dst):
 	$(call cmd,mkdir)
 
+.PHONY: $(unwanted)
+$(unwanted):
+	$(call cmd,remove)
+
 ifdef GENASM
-$(objhdr-y) $(header-y) $(unifdef-y):
+$(objhdr-y) $(header-y) $(unifdef-y): $(KBUILDFILES)
 	$(call cmd,gen)
 
 else
-$(objhdr-y):
+$(objhdr-y) :		$(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
 	$(call cmd,o_hdr_install)
 
-$(header-y):
+$(header-y) :		$(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
 	$(call cmd,headers_install)
 
-$(unifdef-y):
+$(unifdef-y) :		$(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
 	$(call cmd,unifdef)
 endif
 endif
@@ -153,8 +186,9 @@
 # for their existence.
 altarch-dir: $(subdir-y) $(header-y) $(unifdef-y) $(objhdr-y)
 	$(Q)$(MAKE) $(hdrinst)=include/asm-$(ALTARCH) dst=include/asm-$(ALTARCH)
-	$(Q)$(MAKE) $(hdrinst)=include/asm dst=include/asm
+	$(Q)$(MAKE) $(hdrinst)=include/asm dst=include/asm$(BIASMDIR)
 
 # Recursion
+.PHONY: $(subdir-y)
 $(subdir-y):
 	$(Q)$(MAKE) $(hdrinst)=$(obj)/$@ dst=$(_dst)/$@ rel=../$(rel)
diff --git a/scripts/hdrcheck.sh b/scripts/hdrcheck.sh
index b5ca35a..3159858 100755
--- a/scripts/hdrcheck.sh
+++ b/scripts/hdrcheck.sh
@@ -6,3 +6,5 @@
 	exit 1
     fi
 done
+# FIXME: List dependencies into $3
+touch $3