From: simonmar <unknown>
Date: Thu, 24 Jun 2004 08:44:35 +0000 (+0000)
Subject: [project @ 2004-06-24 08:44:35 by simonmar]
X-Git-Tag: Initial_conversion_from_CVS_complete~1791
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=5617b9287e0d8b95ecca77d2e5d167e5d478fa70;p=ghc-hetmet.git

[project @ 2004-06-24 08:44:35 by simonmar]
Add FAQ item: how to compile a program with and without profiling in
the same directory.
---

diff --git a/ghc/docs/users_guide/faq.sgml b/ghc/docs/users_guide/faq.sgml
index 25bf694..4c6bc43 100644
--- a/ghc/docs/users_guide/faq.sgml
+++ b/ghc/docs/users_guide/faq.sgml
@@ -419,7 +419,26 @@ details.</para>
       </listitem>
     </varlistentry>
 
+    <varlistentry>
+      <term>How do I compile my program for profiling without
+      overwriting the object files and <literal>hi</literal> files
+      I've already built?</term>
+      <listitem>
+	<para>You can select alternative suffixes for object files and
+	interface files, so you can have several builds of the same
+	code coexisting in the same directory.  For example, to
+	compile with profiling, you might do this:</para>
+	
+	<screen>ghc --make -prof -o foo-prof -osuf p.o -hisuf p.hi Main</screen>
+	
+	<para>See <xref linkend="options-output"> for more details on
+	the <option>-osuf</option> and <option>-hisuf</option>
+	options.</para>
+      </listitem>
+    </varlistentry>
+
   </variablelist>
+
 </chapter>