Not able to compile GENERIC kernel

[Giorgos Keramidas]

On Sun, 20 Sep 2009 11:15:15 -0400, mfv <mrkvrg at acm.org> wrote:
> Hello,
>
> After rebuilding FreeBSD for many years I am not able to build a
> GENERIC kernel for the last few days.  It always stops when compiling
> acpi.
>
> The source code is up to date for 7 -STABLE for i386 on a amd64 cpu.
> I have always been able to recompile a GENERIC kernel since release
> 5.1 and do not know what I am doing wrong.
>
> Any help would be greatly appreciated.
>
> With thanks.
>
> Marek
>
> The following is the tail end of "make buildkernel":
>
> cc -O2 -fno-strict-aliasing -pipe -D_KERNEL -DKLD_MODULE -std=c99 -
> nostdinc -I /usr/src/sys/modules/acpi/acpi/../../../contrib/dev/acpica
> -DHAVE_KERNEL_OPTION_ HEADERS -include
> /usr/obj/usr/src/sys/GENERIC/opt_global.h -I. -I@ -I@/contrib/a ltq
> -finline-limit=8000 --param inline-unit-growth=100 --param large-
> function-growth=1000 -fno-common -g -I/usr/obj/usr/src/sys/GENERIC
> -mno-align-long-strings -mpreferred-stack-boundary=2 -mno-mmx -mno-3dnow
> -mno-sse -mno-sse2 -mno-sse3 - ffreestanding -Wall -Wredundant-decls
> -Wnested-externs -Wstrict-prototypes -Wmi ssing-prototypes -Wpointer-
> arith -Winline -Wcast-qual -Wundef -Wno-pointer-sign -fformat-extensions
> -c /usr/src/sys/modules/acpi/acpi/../../../i386/acpica/acpi _machdep.c
> @ ->/usr/src/sys
> ln: @/sys: Operation not permitted
> *** Error code 1

Can you wipe our /usr/obj and start with a clean object tree?  You may
also have stale build artifacts in /usr/src so something like this might
be a good idea:

    # rm -fr /usr/obj/usr
    # cd /usr/src
    # make cleandir ; make cleandir