Remove inline qualifier of isl_sioimath_gcd
Remove inline qualifier of isl_sioimath_gcd

isl_sioimath_gcd is referenced only outside of isl_int_sioimath.c, i.e.
the inline qualifier does not make sense. It still has external linkage
because of a forward declaration without inline qualifier in
isl_int_sioimath.h.

Visual Studio however ignores the forward declaration and therefore
does not generate a isl_sioimath_gcd symbol which results in a link
error.

This is fixed by removing the inline qualifier, declaring it
unambiguously with external linkage.

Signed-off-by: Michael Kruse <8300014ab702124f340a1eb40c7d70d0a8f7b3f1@meinersbur.de>
Signed-off-by: Sven Verdoolaege <e5350bbed4977f5eb8ae1dc6abd9ae59d21ace75@kotnet.org>

UBERTC/isl,Meinersbur/isl,KangDroidSMProject/ISL,PollyLabs/isl,PollyLabs/isl,BenzoSM/isl,nicolasvasilache/isl,UBERTC/isl,KangDroidSMProject/ISL,Meinersbur/isl,tobig/isl,nicolasvasilache/isl,UBERTC/isl,BenzoSM/isl,Distrotech/isl,nicolasvasilache/isl,BenzoSM/isl,inducer/isl-mirror,inducer/isl-mirror,Meinersbur/isl,BenzoSM/isl,tobig/isl,Distrotech/isl,BenzoSM/isl,KangDroidSMProject/ISL,tobig/isl,nicolasvasilache/isl,Distrotech/isl,KangDroidSMProject/ISL,KangDroidSMProject/ISL,nicolasvasilache/isl,PollyLabs/isl,inducer/isl-mirror,inducer/isl-mirror,Distrotech/isl,Meinersbur/isl,inducer/isl-mirror,tobig/isl,Distrotech/isl,PollyLabs/isl,PollyLabs/isl,UBERTC/isl