[tex-live] Make of source.development fails on install

[Gerben Wierda]

> /bin/sh ./../mkinstalldirs 
> /usr/local/Build/TeXLive.development/share/texmf/web2c
> TEXMFCNF=../kpathsea 
> TEXMF=/usr/local/Build/TeXLive.development/share/texmf make 
> progname=etex files="etex.src plain.tex cmr10.tfm" prereq-check
> ../kpathsea/kpsewhich --progname=etex etex.src plain.tex cmr10.tfm 
> >/dev/null || make prereq-lose >/dev/null
> You seem to be missing input files necessary to make the
> basic formats (some or all of: etex.src plain.tex cmr10.tfm).
> Perhaps you've defined the default paths incorrectly, or
> perhaps you have environment variables set pointing
> to an incorrect location.  See ../kpathsea/BUGS.
>
> If you simply do not have the files, you can
> retrieve a minimal set of input files from
> ftp://ftp.tug.org/tex/texklib.tar.gz, mirrored on
> CTAN hosts in systems/web2c.
> make[8]: *** [prereq-lose] Error 1
> make[7]: *** [prereq-check] Error 2
> make[6]: *** [etex.efmt] Error 2
> make[5]: *** [install] Error 1
> make[4]: *** [install] Error 1
> make[3]: *** [install] Error 1
> make[2]: *** [install-tex] Error 2
> make[1]: *** [experimental] Error 2
> make: *** [texbinaries-experimental-pkg-prepare] Error 2

It seems that an independent creation and installl of just the binaries 
is not possible anymore. Why is this? Why should I at this point in 
time (install) have to recreate the formats?

My setup (for Mac OS X distribution) is such that I produce a separate 
texmf and binaries distribution, updated separately. Creating formats 
is then only possible when both are installed in the same location. 
Until now, I could do this with TeX Live, as it just (as it should) 
installed the binaries and libraries and left the creation of formats 
for me to do at a time of my choosing.

This link now seems to make that clean independence impossible.

G