linux-kernel - Re: 3.3: Compilation error "error: stray ‘\33’ in program"

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Date:	Mon, 30 Apr 2012 06:50:50 +0200
From:	Peter Alfredsen <peter.alfredsen@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: 3.3: Compilation error "error: stray ‘\33’ in program"

On Mon, Mar 19, 2012 at 12:52 PM, Peter Alfredsen
<peter.alfredsen@...il.com> wrote:
> Using the attached x86_64 .config generated by "make oldconfig", I'm
> getting the following output:
> loki linux-3.3-rc1 # make clean && make
>  CLEAN   .
>  CLEAN   .tmp_versions
>  HOSTCC  scripts/basic/fixdep
>  HOSTCC  scripts/kconfig/conf.o
>  HOSTCC  scripts/kconfig/zconf.tab.o
>  HOSTLD  scripts/kconfig/conf
> scripts/kconfig/conf --silentoldconfig Kconfig
> make[1]: Nothing to be done for `all'.
>  CHK     include/linux/version.h
>  CHK     include/generated/utsrelease.h
>  CC      kernel/bounds.s
>  GEN     include/generated/bounds.h
>  CC      arch/x86/kernel/asm-offsets.s
> In file included from arch/x86/kernel/asm-offsets_64.c:5:0,
>                 from arch/x86/kernel/asm-offsets.c:27:
> arch/x86/include/generated/asm/syscalls_64.h:1:1: error: stray ‘\33’ in program
> arch/x86/include/generated/asm/syscalls_64.h:1:1: error: expected
> expression before ‘[’ token
> arch/x86/include/generated/asm/syscalls_64.h:1:52: error: invalid
> suffix "m" on integer constant
> <snip a zillion lines>
> arch/x86/include/generated/asm/syscalls_32.h:327:1: error: stray ‘\33’
> in program
> arch/x86/include/generated/asm/syscalls_32.h:327:1: error: stray ‘\33’
> in program
> arch/x86/include/generated/asm/syscalls_32.h:327:1: error: stray ‘\33’
> in program
> arch/x86/kernel/asm-offsets_64.c:4:13: warning: ‘syscalls_64’ defined
> but not used
> make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> make: *** [prepare0] Error 2
>
> Using the original .config from 3.2.5, I can compile 3.2.5 fine.
> 3.3-rc1 errors out as above, so the patch responsible must have come
> from the initial merge.
>
> /Peter

This turned out to be a stray GREP_OPTIONS=--color=yes environment
variable. Unsetting it fixed the problem.
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