-# The `nullgame' source file is a largely blank one, which contains
-# all the correct function definitions to compile and link, but
-# which defines the null game in which nothing is ever drawn and
-# there are no valid moves. Its main purpose is to act as a
-# template for writing new game definition source files. I include
-# it in the Makefile because it will be worse than useless if it
-# ever fails to compile, so it's important that it should actually
-# be built on a regular basis.
-nullgame : [X] gtk COMMON nullgame
-nullgame : [G] WINDOWS COMMON nullgame
+# Version management.
+!begin vc
+version.obj: *.c *.h
+ cl $(VER) $(CFLAGS) /c version.c
+!end
+!specialobj vc version
+!begin wce
+version.obj: *.c *.h
+ $(CC) $(VER) $(CFLAGS) /c version.c
+!end
+!specialobj wce version
+!begin cygwin
+version.o: FORCE;
+FORCE:
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) $(VER) -c version.c
+!end
+!specialobj cygwin version
+# For Unix, we also need the gross MD5 hack that causes automatic
+# version number selection in release source archives.
+!begin gtk
+version.o: FORCE;
+FORCE:
+ if test -z "$(VER)" && test -f manifest && md5sum -c manifest; then \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) `cat version.def` -c version.c; \
+ elif test -z "$(VER)" && test -d .svn && svnversion . >/dev/null 2>&1; then \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) "-DREVISION=`svnversion .`" -c version.c; \
+ else \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) $(VER) -c version.c; \
+ fi
+!end
+!specialobj gtk version
+# For OS X, this is made more fiddly by the fact that we don't have
+# md5sum readily available. We do, however, have `md5 -r' which
+# generates _nearly_ the same output, but it has no check function.
+!begin osx
+version.o: FORCE;
+FORCE:
+ if test -z "$(VER)" && test -f manifest && (md5 -r `awk '{print $$2}' manifest` | diff -w manifest -); then \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) `cat version.def` -c version.c; \
+ elif test -z "$(VER)" && test -d .svn && svnversion . >/dev/null 2>&1; then \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) "-DREVISION=`svnversion .`" -c version.c; \
+ else \
+ $(CC) $(COMPAT) $(XFLAGS) $(CFLAGS) $(VER) -c version.c; \
+ fi
+!end
+!specialobj osx version
+
+# make install for Unix.
+!begin gtk
+install:
+ for i in $(GAMES); do \
+ $(INSTALL_PROGRAM) -m 755 $$i $(DESTDIR)$(gamesdir)/$$i \
+ || exit 1; \
+ done
+!end