I installed Guix with Sharlatan's and Rekado's  script on my Fedora desktop

When I try to build a checked out Guix, whithin an environment, I get

...
configure: checking for guile 2.2
configure: found guile 2.2
checking for guile-2.2... no
checking for guile2.2... no
checking for guile-2... no
checking for guile2... /usr/bin/guile2
configure: error: found development files for Guile 2.2, but
/usr/bin/guile2 has effective version 2.0


within the same environment, I do

[catonano@localhost guix] $ which guile
/gnu/store/d51zyb0z0vzij0kxy2k01fab483z80v6-profile/bin/guile
[catonano@localhost guix] $ guile --version
guile (GNU Guile) 2.2.2
Copyright (C) 2017 Free Software Foundation, Inc.

License LGPLv3+: GNU LGPL 3 or later <http://gnu.org/licenses/lgpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


so why doesn' t this guile get found ?

You may have noticed that the prompt is not preceded by "(env)" as it
happens on GuixSD

but when in the env, things form the env get found and if I do "exit" a new
prompt gets returned and the things from the env are gone, like this

[catonano@localhost guix] $ exit
exit
[catonano@localhost guix] $ which guile
/usr/bin/guile
[catonano@localhost guix] $ guile --version
guile (GNU Guile) 2.0.14
Copyright (C) 2016 Free Software Foundation, Inc.

License LGPLv3+: GNU LGPL 3 or later <http://gnu.org/licenses/lgpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.