Latest version of CLooG does not have properly generated autoconf files,
so they need to be regenerated before the call to ./configure
Signed-off-by: "Ilya A. Volynets-Evenbakh" <ilya@total-knowlege.com>
[yann.morin.1998@anciens.enib.fr: make it conditional on 0.15.10 only]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 32c7bbfa3f6514a0fbd5a7388d33e664ba62ed89)