* Why is the -undef option removed from cpp.
@ 2000-06-29 13:52 H . J . Lu
2000-06-29 14:27 ` Zack Weinberg
0 siblings, 1 reply; 2+ messages in thread
From: H . J . Lu @ 2000-06-29 13:52 UTC (permalink / raw)
To: gcc, gcc-bugs
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?
Thanks.
H.J.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Why is the -undef option removed from cpp.
2000-06-29 13:52 Why is the -undef option removed from cpp H . J . Lu
@ 2000-06-29 14:27 ` Zack Weinberg
0 siblings, 0 replies; 2+ messages in thread
From: Zack Weinberg @ 2000-06-29 14:27 UTC (permalink / raw)
To: H . J . Lu; +Cc: gcc, gcc-bugs
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
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