Re: [Qemu-devel] Fedora Core 2 patch

[Alexander E. Patrakov]

Hetz Ben Hamo wrote:
> I'm removing the patch for fedora.
>
> The solution is simple. instead of just running qemu and sticking the 
> parameters, you should do:
>
> LD_ASSUME_KERNEL=2.2.5 qemu <and the qemu parameters>
>
> Feel free to create an alias in your .bashrc or whatever you favorite shell 
> is ;)
>
> I tested it on Fedora Core 2 and in Rawhide - works perfectly OK.

Unfortunately, this solution is not acceptable for me. The problem is 
that it relies upon RedHat-specific glibc setup.

RedHat provides separate glibc libraries for TLS and (obsolete) non-TLS 
systems. The LD_ASSUME_KERNEL variable selects between them and forces 
qemu to use the old library.

On my system (LFS CVS HEAD as of April 2004) there is just NO non-TLS 
version of glibc, so this "solution" doesn't work. The same applies to 
most of modern source-based distros (e.g. Gentoo).

Probably we have to insert into the ./configure script a test for the 
brokenness that forces us to use __libc_sigaction on older systems, and 
use __libc_sigaction ONLY if the regular sigaction is broken. 
Unfortunately, I can't do this myself because I don't know what exactly 
is broken and therefore I can't write the testcase.

Yes, this means that there will be no single portable binary 
distribution. But it is not worse than the current situation with 
non-working qemu binary.

--
Alexander E. Patrakov