Introduce new CLI/configuration code for mailutils applications.

The new API is to replace libmu_cfg and libmu_argp.  A smooth transition
is scheduled, during which the two APIs will coexist,

* configure.ac: Build libmailutils/cli/Makefile
* include/mailutils/cli.h: New file.
* include/mailutils/Makefile.am: Add cli.h
* libmailutils/cli/Makefile.am: New file.
* libmailutils/cli/capa.c: New file.
* libmailutils/cli/cli.c: New file.
* libmailutils/cli/stdcapa.c: New file.
* libmailutils/Makefile.am (SUBDIRS): Add cli.

* include/mailutils/cfg.h (mu_cfg_parse_hints): New members: append_tree
and data.
(MU_PARSE_CONFIG_LINT): New flag.
* include/mailutils/diag.h (mu_program_name)
(mu_full_program_name): Remove const qualifier.
* include/mailutils/locker.h (mu_locker_set_default_external_program):
Argument is const.
* libmailutils/base/locker.c: Likewise.

* include/mailutils/opt.h (mu_progname, mu_absprogname): Replace
with mu_program_name and mu_full_program_name.
(mu_set_progname): Rename to mu_set_program_name.
(mu_parseopt) <po_data>: Change type to void *.
(po_help_hook, po_version_hook): Change signatures.
(mu_parseopt_error): New function.
* libmailutils/opt/progname.c (mu_progname, mu_absprogname): Replace
with mu_program_name and mu_full_program_name.
(mu_set_progname): Rename to mu_set_program_name.
* libmailutils/opt/help.c: Minor changes
* libmailutils/opt/opt.c (parse_error): Rename to mu_parse_error (extern).
(next_opt): Fix permutations.
* libmailutils/tests/parseopt.c: Reflect changes.
* libmailutils/tests/parseopt17.at: Improve test case
* libmailutils/tests/parseopt_help05.at: Reflect changes.
* libmailutils/tests/parseopt_help07.at: Reflect changes.

* include/mailutils/stdstream.h (mu_program_name): Remove qualifier.

* libmailutils/cfg/driver.c (mu_cfg_tree_reduce): Remove useless condition

* libmailutils/cfg/lexer.l (mu_cfg_parse_file): Additional info messages.
* libmailutils/cfg/parser.y (mu_cfg_parse_config): Join in
the append_tree.
* libmailutils/diag/diag.c (mu_program_name, mu_full_program_name)
(mu_set_program_name): Remove. Declared elsewhere.
* libmu_sieve/conf.c: Add new configuration code. Mark old text for
removal.
* libmailutils/tests/tcli.c: New program.
* libmailutils/tests/Makefile.am: Add tcli.c

1 files changed, 2 insertions, 1 deletions

diff --git a/libmailutils/Makefile.am b/libmailutils/Makefile.am
index 7a5270c4c..82550c23f 100644
--- a/libmailutils/Makefile.am
+++ b/libmailutils/Makefile.am
@@ -17,7 +17,7 @@
 # <http://www.gnu.org/licenses/>.
 
 SUBDIRS = \
- auth base address list sockaddr cidr cfg diag\
+ auth base address list sockaddr cidr cfg cli diag\
  filter mailbox mailer mime msgset opt server string stream stdstream\
  property url imapio datetime . tests 
 
@@ -33,6 +33,7 @@ libmailutils_la_LIBADD = \
  sockaddr/libsockaddr.la\
  cidr/libcidr.la\
  cfg/libcfg.la\
+ cli/libcli.la\
  datetime/libdatetime.la\
  diag/libdiag.la\
  filter/libfilter.la\