[tlbuild] Building svn57874.tar.gz (from github)

[texlive at schoepfer.info]

Hi,

it seems "system-poppler" and "system-xpdf" are gone:
texlive-source-svn57874/build# ../configure --help | grep system-poppler
texlive-source-svn57874/build# ../configure --help | grep system-xpdf

However, i can still use "--with-system-poppler" with configure.
With "--with-system-xpdf" configure runs until checking xpdf and then 
ends with an error.

I'd assume that configure should stop immediately if an unsupported 
option is used,
e.g. like

texlive-source-svn57874/build# ../configure --apple-pie
configure: error: unrecognized option: `--apple-pie'
Try `../configure --help' for more information


Johannes