src/plugin.c: plugin_log: Print to stderr if no log plugin has been loaded.

[collectd.git] / README

diff --git a/README b/README
index 26519f5..f9e49f0 100644 (file)
--- a/README
+++ b/README
@@ -33,9 +33,6 @@ Features
       Batterycharge, -current and voltage of ACPI and PMU based laptop
       batteries.
 
-    - curl
-      Parse statistics from websites using regular expressions.
-
     - bind
       Name server and resolver statistics from the `statistics-channel'
       interface of BIND 9.5, 9,6 and later.
@@ -50,6 +47,9 @@ Features
     - cpufreq
       CPU frequency (For laptops with speed step or a similar technology)
 
+    - curl
+      Parse statistics from websites using regular expressions.
+
     - dbi
       Executes SQL statements on various databases and interprets the returned
       data.
@@ -122,7 +122,7 @@ Features
       using mbmon(1).
 
     - memcachec
-      Query and parse data from a memcache daemon.
+      Query and parse data from a memcache daemon (memcached).
 
     - memcached
       Statistics of the memcached distributed caching system.
@@ -446,18 +446,23 @@ Prerequisites
   * libganglia (optional)
     Used by the `gmond' plugin to process data received from Ganglia.
 
-  * libgcrupt (optional)
+  * libgcrypt (optional)
     Used by the `network' plugin for encryption and authentication.
 
   * libhal (optional)
     If present, the uuid plugin will check for UUID from HAL.
     <http://hal.freedesktop.org/>
 
-  * libiptc (optional, if not found a version shipped with this distribution
-    can be used if the Linux kernel headers are available)
+  * libiptc (optional)
     For querying iptables counters.
     <http://netfilter.org/>
 
+    If not found on the system, a version shipped with this distribution can
+    be used. It requires some Linux headers in /usr/include/linux. You can
+    force the build system to use the shipped version by specifying
+      --with-libiptc=shipped
+    when running the configure script.
+
   * libjvm (optional)
     Library that encapsulates the `Java Virtual Machine' (JVM). This library is
     used by the Java plugin to execute Java bytecode. See “Configuring with
@@ -482,8 +487,7 @@ Prerequisites
     For the `notify_desktop' plugin.
     <http://www.galago-project.org/>
 
-  * liboping (optional, if not found a version shipped with this distribution
-    can be used)
+  * liboping (optional)
     Used by the `ping' plugin to send and receive ICMP packets.
     <http://verplant.org/liboping/>
 
@@ -553,10 +557,16 @@ Configuring / Compiling / Installing
   will be enabled). To enable a plugin, install missing dependencies (see
   section `Prerequisites' above) and rerun `configure'. If you specify the
   `--enable-<plugin>' configure option, the script will fail if the depen-
-  dencies for the specified plugin are not met. If you specify the
-  `--disable-<plugin>' configure option, the plugin will not be built. Both
-  options are meant for package maintainers and should not be used in everyday
-  situations.
+  dencies for the specified plugin are not met. In that case you can force the
+  plugin to be built using the `--enable-<plugin>=force' configure option.
+  This will most likely fail though unless you're working in a very unusual
+  setup and you really know what you're doing. If you specify the
+  `--disable-<plugin>' configure option, the plugin will not be built. If you
+  specify the `--enable-all-plugins' or `--disable-all-plugins' configure
+  options, all plugins will be enabled or disabled respectively by default.
+  Explicitly enabling or disabling a plugin overwrites the default for the
+  specified plugin. These options are meant for package maintainers and should
+  not be used in everyday situations.
 
   By default, collectd will be installed into `/opt/collectd'. You can adjust
   this setting by specifying the `--prefix' configure option - see INSTALL for