Re: utmp group proposal
In article <cistron.199905121419.KAA01006@blastula.phys.columbia.edu>,
Zack Weinberg <zack@rabi.columbia.edu> wrote:
>
>Joel Klecker wrote:
>>The main problem is that 2.0 kernels do not support sigaltstack(),
>>this causes such things as m4 to fail when run on a Linux 2.0 system
>>if it was compiled on a glibc 2.1 system using 2.2 kernel headers.
>
>*sigh* This is a bug in any program that assumes sigaltstack() works
>just because it exists in the library. m4, etc. should be fixed to
>test it at runtime and fall back to some other behavior if it doesn't
>work.
>
>This is in the libc FAQ as of 2.1.1-5:
>#3.21. Autoconf's AC_CHECK_FUNC macro reports that a function exists, but
># when I try to use it, it always returns -1 and sets errno to ENOSYS.
That only says that ./configure should try to actually use it, not that
the resulting binary should do that at runtime.
Mike.
--
Indifference will certainly be the downfall of mankind, but who cares?
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