To begin with, the toolchain no longer lets me build for x86-32 -
apparently MacOS is now 64-bit only.

Also, the linker now gives an error about a missing libgcc_s variant
for -mmacosx-version-min=10.4, and indeed 10.5. So I've bumped the
minimum supported OS version to 10.6.

That in turn required some changes in osx.m itself, because bumping
the min OS version caused some API deprecations to show up. Luckily I
turned out to have left myself a comment some time ago telling me what
I was going to need to do about one of them :-)

OS X is beginning to show a warning when a 32-bit application is
opened, so it's high time that this gets enabled. Fix a clang warning
exposed by this build.

I've built a set of 32-bit binaries, a 32-bit zip file and a 32-bit
MSI, all delivered into a 'w32' output directory.

Mostly just cribbed from the corresponding changes in PuTTY's
build setup, although since the two mkfile.pl scripts are not
_quite_ identical, I had to make a few tweaks.

This is a combination of PuTTY r10142 and the relevant pieces of
r10141: we now enable the 'subdir-objects' mode in Makefile.am, and
stop using $(subdir) in source file paths.

(As a consequence of the latter the automake machinery now cannot live
anywhere but at the top level of the source tree, but since that's
where it was already, this is less of an upheaval here than it was for
PuTTY!)

[originally from svn r10146]
[r10141 == a947c49bec36957cb5d38e1dc2e22dc0e3465849 in putty repository]
[r10142 == 0da225829234744b1141aea3a7c54ad7d74679a7 in putty repository]

revision number from being automatically baked into the automake-built
binaries.

[originally from svn r9890]

install the actual games, not the auxiliary binaries or nullgame.

[originally from svn r9887]

Makefile.am, and there's a new mkauto.sh which builds a corresponding
configure script.

The old makefile has been renamed from 'Makefile' to 'Makefile.gtk',
indicating that the intended new _default_ approach is to use the
autoconf world. Makefile.gtk is provided as an emergency fallback in
case anything fails with the new stuff that used to work with it.

The new configure script does not support the same $(BINPREFIX) system
as the old Makefile did. However, as I understand it, it should be
possible to configure using --program-prefix="sgt-" (for example) and
then the binaries should all be renamed appropriately at install time.

The Makefile.am is quite painful. The Puzzles codebase relies heavily
on compiling individual object files multiple times with different the
cpp flags per build deliverable (program or library) and not per
source file. Solution: anything built with non-default compile options
has to go in its own little library. But that doesn't work either in
the general case, because as soon as you have more than one such
library linked into an application, Unix ld semantics bite you if the
objects in the libraries both refer to each other. So I ended up
building all those little libraries but not _using_ them - instead the
link commands for the programs needing those objects refer to the
objects directly, under the silly names that automake gives them.
(That's less fragile than it sounds, because it does _document_ the
names of the intermediate object files. But still, yuck.)

[originally from svn r9886]

applets, here's an alternative webification in Javascript, using
Emscripten in asm.js mode (so that as browsers incorporate asm.js
optimisation, the game generation should run really fast).

[originally from svn r9781]

and Makefile.doc a command-line parameter 'BINPREFIX' which will be
prepended to all the game binary names. E.g. 'make BINPREFIX=sgt-' and
'make BINPREFIX=sgt- install', and correspondingly 'make -f
Makefile.doc BINPREFIX=sgt-'.

Also included in this commit by mistake, changes to singles.c to add
\n to the end of all its debug() statements. I meant to commit that
separately. Oops.

[originally from svn r9606]