[project @ 2003-09-11 10:35:28 by simonmar]

[ghc-hetmet.git] / docs / building / building.sgml

diff --git a/docs/building/building.sgml b/docs/building/building.sgml
index 9a0fa52..faeec72 100644 (file)
--- a/docs/building/building.sgml
+++ b/docs/building/building.sgml
@@ -3770,6 +3770,7 @@ foo% make install
 
            <listitem>
 <screen>
+$ cd <replaceable>T</replaceable>
 $ ./configure --enable-hc-boot --enable-hc-boot-unregisterised
 </screen>
 
@@ -3823,23 +3824,18 @@ GhcStage2HcOpts = -O -fvia-C -keep-hc-files
            </listitem>
 
            <listitem>
-             <para>Copy
-             <filename><replaceable>T</replaceable>/ghc/includes/config.h</filename>
-             to
-             <filename><replaceable>H</replaceable>/ghc/includes</filename>.
-             Note that we are building on the host machine, using the
-             target machine's <literal>config.h</literal> file.  This
-             is so that the intermediate C files generated here will
-             be suitable for compiling on the target system.</para>
-           </listitem>
-
-           <listitem>
              <para>Edit
              <filename><replaceable>H</replaceable>/mk/config.mk</filename>:</para>
              <itemizedlist>
                <listitem>
                  <para>change <literal>TARGETPLATFORM</literal>
-                  appropriately.</para>
+                  appropriately, and set the variables involving
+                  <literal>TARGET</literal> to the correct values for
+                  the target platform.  This step is necessary because
+                  currently <literal>configure</literal> doesn't cope
+                  with specifying different values for the
+                  <literal>--host</literal> and
+                  <literal>--target</literal> flags.</para>
                </listitem>
                <listitem>
                  <para>copy <literal>LeadingUnderscore</literal>
@@ -3847,18 +3843,32 @@ GhcStage2HcOpts = -O -fvia-C -keep-hc-files
                </listitem>
              </itemizedlist>
            </listitem>
-           
+
            <listitem>
-<screen>
-$ cd <replaceable>H</replaceable>/glafp-utils && make boot && make
-</screen>
+             <para>Copy
+             <filename><replaceable>T</replaceable>/ghc/includes/config.h</filename>
+             to
+             <filename><replaceable>H</replaceable>/ghc/includes</filename>.
+             Note that we are building on the host machine, using the
+             target machine's <literal>config.h</literal> file.  This
+             is so that the intermediate C files generated here will
+             be suitable for compiling on the target system.</para>
+
            </listitem>
-           
+
+             <listitem>
+               <para>Touch <literal>config.h</literal>, just to make
+               sure it doesn't get replaced during the build:</para>
+<screen>
+$ touch <replaceable>H</replaceable>/ghc/includes/config.h</screen>
+             </listitem>
+
            <listitem>
+               <para>Now build the compiler:</para>
 <screen>
+$ cd <replaceable>H</replaceable>/glafp-utils && make boot && make
 $ cd <replaceable>H</replaceable>/ghc && make boot && make
 </screen>
-
              <para>Don't worry if the build falls over in the RTS, we
               don't need the RTS yet.</para>
            </listitem>