Re: library .tbss mismatches

[Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>]

On Thu, May 11, 2023 at 09:05:41PM -0500, Greg Marks wrote:
> On a computer on which, years ago, I installed Pari-GP both from the
> source tarball and from the Debian Linux repositories, I am unable to
> compile C programs such as the extgcd.c program in the Pari examples.
> I get these errors:
> 
> $gcc -Wall -O3 -o extgcd extgcd.c -lpari
> /usr/bin/ld: PARI_SIGINT_block: TLS definition in /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/libpari.so section .tbss mismatches non-TLS reference in /tmp/ccQUa8Wh.o
> /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/libpari.so: error adding symbols: bad value
> collect2: error: ld returned 1 exit status
> 
> Is there some simple solution to this problem?

Dear Greg,

I suggest:

gcc -Wall -O3 -o extgcd -I/usr/include/`gcc -print-multiarch`/   extgcd.c -L/usr/lib/ -lpari
or simply
gcc -Wall -O3 -o extgcd -I/usr/include/x86_64-linux-gnu/   extgcd.c -L/usr/lib/ -lpari

(but as a rule, avoid installing complex software in /usr/local/,
one day or another they will interfer with you distribution)

Cheers,
Bill.