Fix api_sym_update_scalar.
Document the parser interface and remove some excessive readdir paranoia.
Enable gettext in extensions.
Add set_RT to API and to readdir extension.
Fix warning in extension/testext.c.
Robustify extension/readdir.c.
Documentation update.
Add os_isreadable function for future use.
Minor bug fix in api_set_RT.
Fix bug in API set_RT, bug in readdir.c.
Issue a warning if the parser take_control_of function fails.
The readdir extension should set the error code if readdir fails.
Fix last: must initialize errno to 0 before calling readdir.
Extension libraries need to link with $(LIBINTL).
Finish work on iop management. New readdir test.
Merge branch 'extgawk' of ssh://git.sv.gnu.org/srv/git/gawk into extgawk
Improvements in readdir.c.
Update input_parser interface for RT.
Update assignconst test.
Gettext support for the extension files.