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Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable
From: |
Ben Pfaff |
Subject: |
Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable |
Date: |
Fri, 01 Oct 2010 09:26:16 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) |
Paolo Bonzini <address@hidden> writes:
> On 10/01/2010 03:57 PM, Eric Blake wrote:
>>
>> Either way, the name of the indirect variable being assigned is
>> $prefix_a_b, whether you use pre- or post-2.67. Why is 'a=b' being
>> passed instead of 'a_b' in the first place? I'd need to see more
>> context of the real macro usage (rather than this trivial test case) to
>> see whether the efficiency hit is a corner case of a=b is likely in real
>> life and thus a performance regression, or just an extreme that is not
>> worth worrying about.
>
> Given it's about GCC options, I'd guess the real parameter was akin to
> -Wformat=2 and it's building something like
> ax_cv_gcc_option__Wformat_2.
Yes, the original bug report was for the behavior of:
AX_CFLAGS_GCC_OPTION(-std=c99)
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593838
--
Ben Pfaff
http://benpfaff.org
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Paolo Bonzini, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Eric Blake, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Paolo Bonzini, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Eric Blake, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Paolo Bonzini, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Eric Blake, 2010/10/01
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Paolo Bonzini, 2010/10/02
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable, Eric Blake, 2010/10/08
- Re: Bug #593838: AX_CFLAGS_GCC_OPTION misuses AS_VAR_PUSHDEF variable,
Ben Pfaff <=