Patch: add build time option to disable IMAP IDLE support

[José Dapena Paz <jdapena igalia com>]

	Hi,

	This patch simply adds a build time option to disable IMAP IDLE
extension support in tinymail. Just, if you put --disable-idle in
autogen/configure, you won't get IDLE support.

	This is because the current implementation (based on a busyloop) is
really expensive for power management.

Changelog:
    * libtinymail-camel/camel-lite/configure.ac: add new configure option
      --disable-idle, so we can disable IDLE support on build time.
    * libtinymail-camel/camel-lite/camel/providers/imap/camel-imap-store.c:
      if IDLE is disabled, don't parse IDLE capability.


-- 
José Dapena Paz <jdapena igalia com>
Igalia

diff --git a/libtinymail-camel/camel-lite/camel/providers/imap/camel-imap-store.c b/libtinymail-camel/camel-lite/camel/providers/imap/camel-imap-store.c
index aaa5764..64bb6f4 100644
--- a/libtinymail-camel/camel-lite/camel/providers/imap/camel-imap-store.c
+++ b/libtinymail-camel/camel-lite/camel/providers/imap/camel-imap-store.c
@@ -1035,7 +1035,9 @@ static struct {
 	{ "XGWMOVE",		IMAP_CAPABILITY_XGWMOVE },
 	{ "LOGINDISABLED",	IMAP_CAPABILITY_LOGINDISABLED },
 	{ "CONDSTORE",		IMAP_CAPABILITY_CONDSTORE },
+#ifndef DISABLE_IDLE
 	{ "IDLE",		IMAP_CAPABILITY_IDLE },
+#endif
 	{ "BINARY",		IMAP_CAPABILITY_BINARY },
 	{ "QRESYNC",		IMAP_CAPABILITY_QRESYNC },
 	{ "ENABLE",		IMAP_CAPABILITY_ENABLE },
diff --git a/libtinymail-camel/camel-lite/configure.ac b/libtinymail-camel/camel-lite/configure.ac
index a2ad034..a63a4fc 100644
--- a/libtinymail-camel/camel-lite/configure.ac
+++ b/libtinymail-camel/camel-lite/configure.ac
@@ -213,6 +213,18 @@ else
 fi
 AM_CONDITIONAL(ENABLE_IMAPP, test x$enable_imapp = xyes)
 
+dnl **************************************************
+dnl IMAP IDLE support.
+dnl **************************************************
+AC_ARG_ENABLE(idle, 
+[  --disable-idle      Disable IMAP IDLE support],
+[ case "$enableval" in
+  no)
+    AC_DEFINE(DISABLE_IDLE,1,[do not use IMAP IDLE]);;
+  *)
+    ;;
+  esac ], )
+
 
 AC_TNY_FILELOCK_CHECK
 AC_TNY_BRKSPOOL_CHECK