Steps to reproduce, with a ''CFARM'' user account with the ksh login shell and no `.profile` or other such dotfile in its home directory:
The problem seems to be that `runConfigureICU` sets `INSTALL` in `icudefs.mk` to a bad value, to a relative path that doesn't resolve when being called from `stubdata/Makefile`.
A possible workaround is to manually pass a usable value for `INSTALL` to `runConfigureICU`:
Then the build works as expected.
I got curious about whether this is a regression for 61 so I tried repeating the steps above with these older releases as well:
http://download.icu-project.org/files/icu4c/60.2/icu4c-60_2-src.tgz
http://download.icu-project.org/files/icu4c/59.1/icu4c-59_1-src.tgz
http://download.icu-project.org/files/icu4c/58.2/icu4c-58_2-src.tgz
http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-src.tgz
But it fails in the same way with all of them, so this has been broken for quite some time.
I didn't see this issue but will take a look