* configure.ac, Makefile.am, src/Makefile.am, doc/Makefile.am,

examples/Makefile.am, examples/Makefile.def,
examples/adder/Makefile.am, examples/calculator/Makefile.am,
examples/cmilner/Makefile.am, examples/fdd/Makefile.am,
examples/internal/Makefile.am, examples/milner/Makefile.am,
examples/money/Makefile.am, examples/queen/Makefile.am,
examples/solitar/Makefile.am, m4/debug.m4, m4/gccwarns.m4,
ChangeLog, INSTALL: New files.
* config, makefile, src/makefile, doc/makefile,
examples/adder/makefile, examples/calculator/makefile
examples/cmilner/makefile, examples/fdd/makefile,
examples/internal/makefile, examples/milner/makefile,
examples/money/makefile, examples/queen/makefile,
examples/solitare/makefile : Delete.
* examples/adder/adder.cxx, examples/fdd/statespace.cxx,
examples/internal/bddtest.cxx, examples/milner/milner.cxx,
examples/money/money.cxx, examples/queen/queen.cxx,
examples/solitare/solitare.cxx: Include iostream.
* examples/calculator/parser.y: Rename as ...
* examples/calculator/parser.yxx: ... this.  Remove spurious
comas in %token, %right, and %left arguments.
* examples/calculator/parser.h: Rename as ...
* examples/calculator/parser_.h: ... this, because the bison
rule with output parser.h (not tokens.h) from parser.y.
* examples/calculator/lexer.l: Rename as ...
* examples/calculator/lexer.lxx: ... this.  Include parser.h
instead of tokens.h.
* examples/calculator/slist.h
(voidSList::voisSListElem, SList::ite): Fix friend usage.
* src/kernel.h (DEFAULT_CLOCK): Default to 60 if not already
defined.
* README: Update build instruction, and file listing.

buddy/m4/debug.m4

@@ -0,0 +1,25 @@
+AC_DEFUN([buddy_DEBUG_FLAGS],
+[AC_ARG_ENABLE([swap-count], 
+  [AC_HELP_STRING([--enable-swap-count], 
+     [Count number of fundamental variable swaps (for debugging)])])
+case $enable_swap_count in
+  yes)
+    AC_DEFINE([SWAPCOUNT], 1, 
+ 	      [Define to 1 to count number of fundamental variable swaps 
+	       (for debugging).])
+    ;;
+esac
+
+AC_ARG_ENABLE([cache-stats], 
+  [AC_HELP_STRING([--enable-cache-stats], 
+     [Gather statistical information about operator and unique node caching (for debugging)])])
+case $enable_cache_stats in
+  yes)
+    AC_DEFINE([CACHESTATS], 1, 
+              [Defube to 1 to gather statistical information about operator and unique node caching (for debugging).])
+    ;;
+esac
+])
+
+     
+  

buddy/m4/gccwarns.m4

@@ -0,0 +1,51 @@
+dnl Check if the compiler supports useful warning options.  There's a few that
+dnl we don't use, simply because they're too noisy:
+dnl
+dnl -ansi (prevents declaration of functions like strdup, and because
+dnl        it makes warning in system headers).
+dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
+dnl -Wtraditional (combines too many unrelated messages, only a few useful)
+dnl -Wredundant-decls (system headers make this too noisy)
+dnl -pedantic
+dnl -Wunreachable-code (broken, see GCC PR/7827)
+dnl -Wredundant-decls (too many warnings in GLIBC's header with old GCC)
+dnl
+dnl A few other options have been left out because they are annoying in C++.
+
+AC_DEFUN([CF_GCC_WARNINGS],
+[if test -n "$GCC"; then
+  AC_CACHE_CHECK([for $GCC warning options], ac_cv_prog_gxx_warn_flags,
+  [
+  cat > conftest.$ac_ext <<EOF
+#line __oline__ "configure"
+int main(int argc, char *argv[[]]) { return argv[[argc-1]] == 0; }
+EOF
+  cf_save_CFLAGS="$CFLAGS"
+  ac_cv_prog_gcc_warn_flags="-W -Wall"
+  for cf_opt in \
+   Waggregate-return \
+   Wbad-function-cast \
+   Wcast-align \
+   Winline \
+   Wnested-externs \
+   Wpointer-arith \
+   Wwrite-strings \
+   Wmissing-declarations \
+   Wmissing-prototypes \
+   Wstrict-prototypes \
+   Wshadow \
+   Wcast-qual \
+  do
+    CFLAGS="$cf_save_CFLAGS $ac_cv_prog_gcc_warn_flags -$cf_opt"
+    if AC_TRY_EVAL(ac_compile); then
+      ac_cv_prog_gcc_warn_flags="$ac_cv_prog_gcc_warn_flags -$cf_opt"
+      test "$cf_opt" = Wcast-qual && ac_cv_prog_gcc_warn_flags="$ac_cv_prog_gcc_warn_flags -DXTSTRINGDEFINES"
+    fi
+  done
+  rm -f conftest*
+dnl  CFLAGS="$cf_save_CFLAGS"
+  ])
+fi
+dnl AC_SUBST([WARNING_CFLAGS], ["${ac_cv_prog_gcc_warn_flags}"])
+])
+