Re: [Lilypond-auto] Issue 2529 in lilypond: configure should error for any missing software

[lilypond]

Updates:
        Status: Started
        Owner: address@hidden

Comment #2 on issue 2529 by address@hidden: configure should error  
for any missing software
http://code.google.com/p/lilypond/issues/detail?id=2529

Graham, there is already --enable-documentation/--disable-documentation,  
but currently it isn't used properly: in order to avoid configure failure  
when cross-compiling (in particular in GUB), all requirements which are  
only needed for documentation build and "make test*/check" have been made  
optional.  IMO this is wrong.  So, in addition to a patch to  
configure.in/aclocal.m4 (which I've written and testing before  
sumbisssion), fixing this requires to add --disable-documentation configure  
flag in cross-compilation LilyPond builds in GUB; any takers for it?

Do we also want to check for tar (needed for "make dist"), gftodvi (that  
may used by font developers, see mf/GNUmakefile and/or  
stepmake/stepmake/metafont-rules.make)?  If there is no feedback on this, I  
won't add these checks in the patch, as they require a bit more of work  
(adding configure command-line options) for very little gain IMHO.