Refactoring and tidy up in the build system

[ghc-hetmet.git] / docs / users_guide / runtime_control.xml

diff --git a/docs/users_guide/runtime_control.xml b/docs/users_guide/runtime_control.xml
index 14732c5..4040913 100644 (file)
--- a/docs/users_guide/runtime_control.xml
+++ b/docs/users_guide/runtime_control.xml
@@ -62,7 +62,7 @@
   <literal>+RTS -M128m -RTS</literal>
   to the command line.</para>
 
-  <sect2 id="rts-optinos-environment">
+  <sect2 id="rts-options-environment">
     <title>Setting global RTS options</title>
 
     <indexterm><primary>RTS options</primary><secondary>from the environment</secondary></indexterm>
@@ -130,6 +130,15 @@
          things like ctrl-C. This option is primarily useful for when
          you are using the Haskell code as a DLL, and want to set your
          own signal handlers.</para>
+
+         <para>Note that even
+           with <option>--install-signal-handlers=no</option>, the RTS
+           interval timer signal is still enabled.  The timer signal
+           is either SIGVTALRM or SIGALRM, depending on the RTS
+           configuration and OS capabilities.  To disable the timer
+           signal, use the <literal>-V0</literal> RTS option (see
+           above).
+         </para>
        </listitem>
      </varlistentry>
 
@@ -1286,7 +1295,6 @@ $ ./a.out +RTS --info
 
 <!-- Emacs stuff:
      ;;; Local Variables: ***
-     ;;; mode: xml ***
      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter" "sect1") ***
      ;;; End: ***
  -->