[Bug web/53919] Version-specific install instructions not available

["schnetter at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53919

--- Comment #2 from Erik Schnetter <schnetter at gmail dot com> 2012-07-10 18:26:53 UTC ---
I am currently installing gcc 4.7.1, and and dealing with the prerequisites.
gmp 5.x was not recognised as valid version; I had to install gmp 4.x instead.
Finding a valid combination of ppl/cloog/isl versions was another issue: after
downloading and installing isl, I found that gcc 4.7.1 doesn't even offer the
respective configuration option.

These may just be "details" in the prerequisites, but it is just these details
that I am looking for in the install instructions.

I appreciate that the instructions generally don't change that much between
versions, but the same can probably be said about the manual -- new options,
new optimisations, and new architectures tend to be few among a large bulk of
things that remain the same. Yet, the web site makes a clear distinctions
between manuals for different versions, and doesn't even seem to offer an
online manual for the trunk.