ocaml-camomile build failure if bytecode compilation only

I there,
I am an ocaml beginner trying to port ocaml packages on new ppc64le archi.  In a first step doing only for bytecode and not native.

The ocaml-camomile package build is failing when there is no native ocaml builder.
Is  the package supposed to build with bytecode compilation only ?

===
+ cd /builddir/build/BUILD
+ cd camomile-0.8.3
+ unset MAKEFLAGS
+ ./configure --prefix=/usr --datadir=/usr/share --libdir=/usr/lib64
...
checking for ocamlopt... no
configure: WARNING: Cannot find ocamlopt; bytecode compilation only.
...
no -c -noassert -I internal -I public -I toolslib -I . -g -impl public/unicodeString.mli
make: no: Command not found
make: *** [public/unicodeString.cmx] Error 127
===

-- 
Michel Normand