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authorSimon Marlow <marlowsd@gmail.com>2014-09-02 09:01:45 +0100
committerSimon Marlow <marlowsd@gmail.com>2014-09-29 14:39:42 +0100
commitaeb9c936076da2536310c5aee0234270186f54b5 (patch)
tree6256e9f4b56d7864987242ed21c6a484c455c066
parente97234ddeed54c41b0c706b6b3bf6f236e451c7d (diff)
downloadhaskell-aeb9c936076da2536310c5aee0234270186f54b5.tar.gz
Document that -dynamic is needed for loading compiled code into GHCi
-rw-r--r--docs/users_guide/ghci.xml7
1 files changed, 6 insertions, 1 deletions
diff --git a/docs/users_guide/ghci.xml b/docs/users_guide/ghci.xml
index 729f96f244..cbf5b764a1 100644
--- a/docs/users_guide/ghci.xml
+++ b/docs/users_guide/ghci.xml
@@ -226,7 +226,7 @@ Ok, modules loaded: Main.
</screen>
<para>We can compile D, then load the whole program, like this:</para>
<screen>
-Prelude> :! ghc -c D.hs
+Prelude> :! ghc -c -dynamic D.hs
Prelude> :load A
Compiling B ( B.hs, interpreted )
Compiling C ( C.hs, interpreted )
@@ -241,6 +241,11 @@ Ok, modules loaded: A, B, C, D.
because the source and everything it depends on
is unchanged since the last compilation.</para>
+ <para>Note the <literal>-dynamic</literal> flag to GHC: GHCi uses
+ dynamically-linked object code (if you are on a platform that
+ supports it), and so in order to use compiled code with GHCi it
+ must be compiled for dynamic linking.</para>
+
<para>At any time you can use the command
<literal>:show modules</literal>
to get a list of the modules currently loaded