native LIRC support for ncmpc

The attachment includes the patch and a sample .lircrc config for
testing purposes (i. e. only a few commands are mapped to IR events).
The config is rather simple to write: For each button add a block like
this to ~/.lircrc:

begin
     button = <button name from /etc/lircd.conf>
     prog = ncmpc
     config = <command name from src/command.c>
end

The patch is not finished, there are several problems that still need to
be solved:

1. the configure.ac modifications are just for testing purposes and
should be made optional with a parameter like --enable-lirc
for ./configure. Unfortunately I'm not an expert on autoconfig tools.

2. LIRC example code [1] suggests looping over lirc_code2char, probably
to have multiple actions that can be triggered from one button. Perhaps
lirc_event(...) should be moved to lirc.c and be heavily modified, no
longer being a mere copy of keyboard_event(...).

1 files changed, 5 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 8611c0da4..d46045fc5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -174,6 +174,11 @@ if test "x$use_colors" = "xyes" ; then
     AC_DEFINE([ENABLE_COLORS], [1], [Enable color support])
 fi
 
+dnl test for LIRC support
+AC_CHECK_LIB(lirc_client, lirc_init)
+AC_SUBST(LIRC_LIBS)
+AC_DEFINE([ENABLE_LIRC], [1], [Enable LIRC support])
+
 dnl Debugging 
 AC_MSG_CHECKING([whether to build with debug support])
 AC_ARG_ENABLE([debug],