my bad

[RazanakotoMandresy]

error: linker cc not found
|
= note: No such file or directory (os error 2)

error: could not compile proc-macro2 (build script) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile libc (build script) due to 1 previous error
error: failed to compile mdbook v0.4.40, intermediate artifacts can be found at /tmp/cargo-installfERH9v.
To reuse those artifacts with a future compilation, set the environment variable CARGO_TARGET_DIR to that path.