=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for ruby-gd-0.8.0.gem
=> Checksum RMD160 OK for ruby-gd-0.8.0.gem
=> Checksum SHA512 OK for ruby-gd-0.8.0.gem
===> Installing dependencies for ruby26-gd-0.8.0nb19
==========================================================================
The following variables will affect the build process of this package,
ruby26-gd-0.8.0nb19.  Their current value is shown below:

        * JPEG_DEFAULT = jpeg

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

        * JPEGBASE (defined, but empty)
        * JPEG_TYPE = jpeg

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 distcc-[0-9]*: found distcc-3.3
=> Build dependency x11-links>=1.31: found x11-links-1.31
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency ruby26-base>=2.6.6: NOT found
=> Verifying /nonexistent for ../../lang/ruby26-base
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/lang/ruby26-base
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/graphics/ruby-gd