Miscellaneous updates:

- note Visual Foo version requirements
 - note which things are done for you in our source snapshots
 - other tweaks

[originally from svn r5839]

README

@@ -12,6 +12,9 @@ For building on Windows:
    systems. Change into the `windows' subdirectory and type `nmake
    -f Makefile.vc' to build all the PuTTY binaries.
 
+   Last time we checked, PuTTY built with vanilla VC7, or VC6 with
+   the Platform SDK.
+
    (We've also had one report of success building with the
    OpenWatcom compiler -- www.openwatcom.org -- using Makefile.vc
    with `wmake -ms -f makefile.vc' and NO_MULTIMON, although we
@@ -46,31 +49,38 @@ For building on Unix:
    should still be able to build the command-line utilities (PSCP,
    PSFTP, Plink, PuTTYgen) using this script. To use it, change
    into the `unix' subdirectory, run `./configure' and then `make'.
+
+   Note that Unix PuTTY has mostly only been tested on Linux so far;
+   portability problems such as BSD-style ptys or different header file
+   requirements are expected.
  
  - unix/Makefile.gtk is for non-autoconfigured builds. This makefile
    expects you to change into the `unix' subdirectory, then run `make
-   -f Makefile.gtk'. Note that Unix PuTTY has mostly only been tested
+   -f Makefile.gtk'.
-   on Linux so far; portability problems such as BSD-style ptys or
-   different header file requirements are expected.
 
-   For the graphical utilities, Gtk+-1.2 is required. Gtk+-2.0 is not
+ - For the graphical utilities, Gtk+-1.2 is required. Gtk+-2.0 is not
    yet supported.
 
-   There is an `install' target; note that by default it tries to
+ - Both Unix Makefiles have an `install' target. Note that by default
-   install `man' pages, which need to be built using Halibut first --
+   it tries to install `man' pages, which you may need to have built
-   see below.
+   using Halibut first -- see below.
 
 All of the Makefiles are generated automatically from the file
 `Recipe' by the Perl script `mkfiles.pl'. Additions and corrections
 to Recipe and the mkfiles.pl are much more useful than additions and
-corrections to the alternative Makefiles themselves. The Unix `configure'
+corrections to the alternative Makefiles themselves.
-script and its various requirements are generated by the shell script
+
-`mkauto.sh', which requires GNU Autoconf, GNU Automake, and Gtk.
+The Unix `configure' script and its various requirements are generated
+by the shell script `mkauto.sh', which requires GNU Autoconf, GNU
+Automake, and Gtk; if you've got the source from Subversion rather
+than using one of our source snapshots, you'll need to run this
+yourself.
 
 Documentation (in various formats including Windows Help and Unix
-`man' pages) is to be built from the Halibut (`.but') files in the
+`man' pages) is built from the Halibut (`.but') files in the `doc'
-`doc' subdirectory using `doc/Makefile'. Halibut can be found at
+subdirectory using `doc/Makefile'. If you aren't using one of our
-<http://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
+source snapshots, you'll need to do this yourself. Halibut can be
+found at <http://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
 
 The PuTTY home web site is