GMP incorrectly detects CPU-VENDOR-OS triplet on some x86_64 architectures.

[itakingiteasy]

On my x86_64 machine ./config.guess script of GMP 5.01 (and 5.00 as well) returns 'athlon-unknown-linux-gnu' which is incorrectly considered by ./configure script as 32-bit platform, so it expects sizeof(long) to be 4, when it is actually 8:

checking compiler cc -O2 -pedantic -fomit-frame-pointer has sizeof (long)==4... no

which results in a compiler error:

configure: error: could not find a working compiler, see config.log for details

This bug can be avoided by specifying --build=x86_64-unknown-linux-gnu option to ./configure script, but without knowing that your whole LFS assembly stops.

I am aware of the ticket ​http://wiki.linuxfromscratch.org/lfs/ticket/2648 , but i decided to make a separate one because it has nothing to do with CFLAGS or ABI environment variables.

[bdubbs@…]

config.guess determines the first part of the triplet from uname -m (coreutils).

What version of coreutils are you using? What is the output of uname -a?

[itakingiteasy]

Coreutils 8.4

uname -a

Linux lfslivecd 2.6.22.5-64bit #1 SMP Thu Nov 29 07:28:23 GMT 2007 x86_64 x86_64 x86_64 GNU/Linux

[bdubbs@…]

What is the output of cat /proc/cpuinfo?

Specifically, what is vendor_id, cpu family, and model

[bdubbs@…]

I'll take this ticket, but I need more info from the submitter. If we don't get the info requested in the last reply in the next few days, I'll close this as worksforme.

[bdubbs@…]

No response in two weeks. Closing.