[*] cc -O2 -fno-strict-aliasing -fwrapv -pthread -Wall -Wdeclaration-after-statement -fno-common -fexcess-precision=standard -fPIC -O2 -mieee -I/usr/include -Wl,-E -L/usr/lib -Wl,-R/usr/lib -Wl,-R/usr/pkg/lib -o .duneboot.exe -Lboot -L/usr/pkg/lib/ocaml -O2 -mieee -I/usr/pkg/include -I/usr/include -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib -fdebug-prefix-map=/tmp/camlobj47d8c9.c=camlprim.c /tmp/camlobj47d8c9.c -lunix -lcamlrun -I/usr/pkg/lib/ocaml -lm <.> /tmp/pkgbuild/devel/ocaml-dune/work.alpha/.compiler/bin/c-fail-wrapper -fcommon -D_FORTIFY_SOURCE=2 -O2 -fno-strict-aliasing -fwrapv -pthread -Wall -Wdeclaration-after-statement -fno-common -fexcess-precision=standard -fPIC -O2 -mieee -Wl,-E -Wl,-rpath,/usr/pkg/lib -o .duneboot.exe -Lboot -L/usr/pkg/lib/ocaml -O2 -mieee -I/tmp/pkgbuild/devel/ocaml-dune/work.alpha/.buildlink/include -L/tmp/pkgbuild/devel/ocaml-dune/work.alpha/.buildlink/lib -Wl,-rpath,/usr/pkg/lib -fdebug-prefix-map=/tmp/camlobj47d8c9.c=camlprim.c /tmp/camlobj47d8c9.c -lunix -lcamlrun -I/usr/pkg/lib/ocaml -lm *** Please consider adding c to USE_LANGUAGES in the package Makefile.