(O_RDONLY): Do not define.
(O_WRONLY): Likewise.
(O_RDWR): Likewise.
(targ-vals.h): Include it.
(translate_open_mode): Use TARGET_O_* instead of O_*.
(SWIopen): Likewise.
* Makefile.in (armos.o): Depend on targ-vals.h.
scheme which is more compatible with WinGDB builds.
* configure.in: Improve comment on how to run autoconf.
* configure: Re-run autoconf to get new ../common/aclocal.m4.
* Makefile.in: Use autoconf substitution to install common
makefile fragment.
* configure: Rebuild.
* Makefile.in (INSTALL): Revert to using install.sh.
(INSTALL_PROGRAM, INSTALL_DATA): Set to $(INSTALL).
(INSTALL_XFORM, INSTALL_XFORM1): Restore.
(mostlyclean): Make the same as clean, not distclean.
(clean): Remove config.log.
(install): Don't install in $(tooldir).