so that test for the same function can be performed multiple
times.
* configure.in (AC_CHECK_HEADERS): Test for rxposix.h,
rx/rxposix.h. Add library rx only if regcomp can't be found
without it.
no plugins.
* configure.in: Merged the old text from qt/configure.in and
libguile/configure.in; Tom Tromey says automake only wants one
configure.in script. This seems fishy, but...
* Makefile.am: List the subdirectories explicitly; no more PLUGIN
gubbish.
* acconfig.h, acinclude.m4: Moved here from libguile, since
libguile's configure script lives here now.
* AUTHORS, INSTALL, README: Updated.
* Makefile.in, aclocal.m4 configure: Regenerated. Just like
amputated amphibian limbs.