dependency errors in scripts/ and arch/powerpc/boot

[Olaf Hering]

Sam,

this script results in build errors because stuff in scripts/ and boot/
doesnt get rebuilt if the source dir changes. I was under the impression
that the absolute path of the source dir is part of the build dependency.
Even going from 2.6.18 to 2.6.17 fails.
This used to work with older kernels, I think.

#!/bin/bash
set -ex
mydir=/dev/shm/$PPID
numcpus=`grep -Ec '^cpu[0-9]' /proc/stat || echo 1`

rm -rf $mydir
mkdir -p $mydir
cd $mydir
mkdir O

tar xfz /mounts/mirror/kernel/v2.6/linux-2.6.17.8.tar.gz
tar xfz /mounts/mirror/kernel/v2.6/testing/linux-2.6.18-rc4.tar.gz
cd linux-2.6.18-rc4
cp arch/powerpc/configs/pseries_defconfig ../O/.config
yes '' | make -j$numcpus O=../O oldconfig > /dev/null
make -j$numcpus O=../O zImage > /dev/null
cd ../linux-2.6.17.8
make -j$numcpus O=../O zImage


...

+ cd ../linux-2.6.17.8
+ make -j14 O=../O zImage
  GEN     /dev/shm/13410/O/Makefile
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  Using /dev/shm/13410/linux-2.6.17.8 as source for kernel
  GEN     /dev/shm/13410/O/Makefile
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/split-include
  HOSTCC  scripts/basic/docproc
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/kxgettext.o
  HOSTCC  scripts/kconfig/mconf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
In file included from scripts/kconfig/zconf.tab.c:158:
scripts/kconfig/zconf.hash.c: In function âkconf_id_lookupâ:
scripts/kconfig/zconf.hash.c:190: error: âT_OPT_DEFCONFIG_LISTâ undeclared (first use in this function)
scripts/kconfig/zconf.hash.c:190: error: (Each undeclared identifier is reported only once
scripts/kconfig/zconf.hash.c:190: error: for each function it appears in.)
scripts/kconfig/zconf.hash.c:190: error: âTF_OPTIONâ undeclared (first use in this function)
scripts/kconfig/zconf.hash.c:203: error: âT_OPT_MODULESâ undeclared (first use in this function)
scripts/kconfig/zconf.tab.c: In function âzconfparseâ:
scripts/kconfig/zconf.tab.c:1557: error: âTF_OPTIONâ undeclared (first use in this function)
scripts/kconfig/zconf.tab.c:1557: error: invalid operands to binary &
scripts/kconfig/zconf.tab.c:1558: warning: implicit declaration of function âmenu_add_optionâ
make[3]: *** [scripts/kconfig/zconf.tab.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [silentoldconfig] Error 2
make[1]: *** [include/linux/autoconf.h] Error 2
make: *** [zImage] Error 2

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