=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for ocaml-cairo-0.6.1.tar.gz
=> Checksum RMD160 OK for ocaml-cairo-0.6.1.tar.gz
=> Checksum SHA512 OK for ocaml-cairo-0.6.1.tar.gz
===> Installing dependencies for ocaml-cairo-0.6.1nb2
==========================================================================
The following variables will affect the build process of this package,
ocaml-cairo-0.6.1nb2.  Their current value is shown below:

        * OCAML_USE_OPT_COMPILER = yes
        * SSLBASE = /usr
        * SSLCERTS = /etc/openssl/certs
        * SSLDIR = /etc/openssl
        * SSLKEYS = /etc/openssl/private

Based on these variables, the following variables have been set:

        * TERMCAP_TYPE = termcap

You may want to abort the process now with CTRL-C and change their value
before continuing.  Be sure to run `/usr/bin/make clean' after
the changes.
==========================================================================
=> Tool dependency glib2-tools-[0-9]*: found glib2-tools-2.64.1
=> Tool dependency distcc-[0-9]*: found distcc-3.3
=> Build dependency x11-links>=1.31: found x11-links-1.31
=> Build dependency ocaml-opaline>=0.3.2: found ocaml-opaline-0.3.2
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ocaml-dune>=2.1.3nb1: found ocaml-dune-2.1.3nb1
=> Full dependency ocaml-findlib>=1.8.1: found ocaml-findlib-1.8.1
=> Full dependency ocaml>=4.09.0: found ocaml-4.09.0
=> Full dependency cairo>=1.16.0: found cairo-1.16.0
=> Full dependency ocaml-lablgtk>=2.18.10nb2: found ocaml-lablgtk-2.18.10nb2
===> Overriding tools for ocaml-cairo-0.6.1nb2
===> Extracting for ocaml-cairo-0.6.1nb2
===> Patching for ocaml-cairo-0.6.1nb2
===> Creating toolchain wrappers for ocaml-cairo-0.6.1nb2
===> Configuring for ocaml-cairo-0.6.1nb2