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Re: Why is the -undef option removed from cpp.
- To: "H . J . Lu" <hjl at valinux dot com>
- Subject: Re: Why is the -undef option removed from cpp.
- From: Zack Weinberg <zack at wolery dot cumb dot org>
- Date: Thu, 29 Jun 2000 14:27:44 -0700
- Cc: gcc at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org
- References: <20000629135229.A24075@valinux.com>
On Thu, Jun 29, 2000 at 01:52:29PM -0700, H . J . Lu wrote:
> The -undef option:
>
> -undef Do not predefine any nonstandard macros.
>
> is removed from cpp in gcc 2.96. But XFree86 4.0 uses
>
> #define RawCppCmd CppCmd -undef
>
> As the result, many files generated by RawCppCmd are empty. Why is
> it removed?
It is not removed. Your installation is broken; you have CppCmd
pointing at an internal executable instead of the preprocessor.
zw