gp2c installation: missing file lang.c

[emmanuel.royer@math.univ-bpclermont.fr]

Good morning,

I am trying to install gp2c on a new Ubuntu 16.04 distribution.
(Everything worked perfect with gp after installation of all the missing
packages).

I want to install it wit GIT, following the PARI2017/LYON tutorial.
automake and autonconf have already been installed.

After execution of ./configure as in page 10 of the tutorial, I enter
make check and get the follwing mistake:

gcc: error: lang.c: Aucun fichier ou dossier de ce type

(see below for everything I got)/

Should I add a package?

(The aim is to have an updated distribution for PARI2017/CLERMONT-FERRAND).
-- 
Emmanuel Royer
http://math.univ-bpclermont.fr/~royer/
-----------------
Université Clermont Auvergne, CNRS
Directeur du laboratoire de mathématiques Blaise Pascal
LMBP, UMR 6620
http://recherche.math.univ-bpclermont.fr/
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