New configure options and macros for internal use.
* configure.ac: Add option --enable-log-clock. * configure.ac: Add option --enable-werror. * src/sysutils.c: New. * src/Makefile.am (libgpg_error_la_SOURCES): Add sysutils.c * src/gpgrt-int.h: Add internal i18n macros and hacks to make working with sockets easier. (es_stdin, es_stdout, es_stderr): New internal macros. (snprintf): New macro.
- Signed-off-by: Werner Koch <wk@gnupg.org>