Missing files during libreoffice build

[Pieter van Oostrum <pieter-l@xxxxxxxxxxxxxx>]

I am building libreoffice on my MacBook (MacOS High Sierra).
The goal is to do some development.
I am using lode to setup the build environment. I followed the recipe in https://wiki.documentfoundation.org/Development/lode. Now I am at the 'make' phase.
I had to interrupt the building process because my disk filled up.
After rebooting I started the 'make' again. But at the end at the check there are missing files:

Check for macosx
check binaries: +++++++
check packaging files: ++++++++++++++++++++++
check config files: 
check setting files: 
check cpp docu: 
check java docu: +++++++++
check idl docu: 
ERROR: "docs/idl/ref/index.html" is missing

ERROR: "docs/idl/ref/classes.html" is missing

and a lot more, all in docs/idl/ref/

Could this be caused by the interruption and restart of the build process?
If so, is there a simple way to correct this, without redoing the complete build, which takes hours, i.e. without doing a 'make clean'?
Or is there a better way to restart an interrupted build?
-- 
Pieter van Oostrum
www: http://pieter.vanoostrum.org/
PGP key: [8DAE142BE17999C4]

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