* configure.in (AC_CHECK_FUNCS): Add ctermid, setpgid, setsid,
tcgetpgrp, tcsetpgrp, and waitpid to the list of functions to
check for.
* configure, scmconfig.h.in: Updated, using autoconf and autoheader.
* posix.c (scm_sys_ctermid, scm_sys_setpgid, scm_sys_setsid,
scm_sys_tcgetpgrp, scm_sys_tcsetpgrp, scm_sys_waitpid): Put the
bodies of these functions in "#ifdef HAVE_MUMBLE" clauses, with a
stub that signals an error as the #else.
* configure.in: Call AC_TYPE_MODE_T.
(AC_CHECK_HEADERS): Add libc.h, to get more prototypes on the
NeXT. Put header file list in alphabetical order.
* configure, scmconfig.h.in: Regenerated.
* filesys.c [HAVE_LIBC_H]: #include <libc.h>.
* acconfig.h: New file, providing documentation for the CPP
symbols defined in configure.in
* acconfig-1.5.h: Removed; superceded by the above.
* configure.in: Call AC_TYPE_MODE_T.
(AC_CHECK_HEADERS): Add libc.h, to get more prototypes on the
NeXT. Put header file list in alphabetical order.
* configure, scmconfig.h.in: Regenerated.
* filesys.c [HAVE_LIBC_H]: #include <libc.h>.
* filesys.c [HAVE_STRING_H]: #include <string.h>, to get prototype
for strerror.
(installed_h_files): Put in alphabetical order.
Remove duplicate entries for markers.h and unif.h.
(c_files): Remove duplicate entries for markers.c.
(ancillary): Renamed from anillery; all uses changed. Remove
PLUGIN; it's a directory, and needs special treatment in dist-dir.
Remove all the ../doc/* files; doc/Makefile.in handles that.
