Benefits:
1. If a header file gets modified, all dependent stuff gets rebuilt.
No need for 'make clean' after each header modification, no more
spurious errors, no more spurious rebuilds.
2. No more errors due to redefined preprocessor, compiler, and linker
FLAGS.
3. Build scripts don't try to build every *.cc file which happen to
lurk in the source directory.
* autoconf/config.{guess,sub}: Update to GNU version 2003-10-07.
* autoconf/ltmain.sh: Update to GNU version 1.4.3.
* autoconf/autoconf: Remove (from now on we assume autoconf is
installed properly on the sytem).
* autoconf/autoconf.m4: Likewise.
* autoconf/autoconf.m4f: Likewise.
* autoconf/acgeneral.m4: Likewise.
* autoconf/acspecific.m4: Likewise.
* autoconf/aclocal.m4: Regenerate.
* autoconf/acinclude.m4: Remove (while moving the macros...)
* m4/gmp.m4: New file (...to here).
* Makefile.devel: Update to new scheme.
* configure.ac: Likewise.
* include/cln/GV_integer.h: Assume template specializations work.
* include/cln/GV_modinteger.h: Likewise.
* include/cln/config.h.in: Likewise, and drop HAVE_BOOL.
* src/base/cl_base_config.h.in: Drop support for obsolete ftime(3).
* src/base/random/cl_random_from.cc: Likewise.
* src/timing/cl_base_config.h.in: Likewise.
* src/timing/cl_t_current.cc: Likewise.
* autoconf/aclocal.m4: upgrade to autoconf-2.52 infrastructure,
sync with CLisp from CVS.
* autoconf/autoconf: Likewise.
* autoconf/autoconf.m4f: Likewise (new file).
* configure.ac: Likewise (new file, replaces configure.in).
* configure.in: Likewise (deleted, replaced by configure.ac).
* autoconf/config.{guess,sub}: Update to GNU version 2001-12-13.
* src/Makefile.in: made VPATH safe for autoconf-2.52.
* include/cln/config.h.in: Add __s390__.
_FPU_IEEE is really defined.
* include/cln/modules.h: change assembler labels from `label' to
`label:' on hppa, needed by Linux (see comment).
* autoconf/acinclude.m4: new file (for storing CLN-specific macros).
* Makefile.devel: adjusted.
* autoconf/aclocal.m4: regenerate.
* src/base/low/cl_low_mul.cc: moved POD variables that are declared
extern "C" elsewhere out of the namespace.
* src/base/low/cl_low_div.cc: Likewise.