Changeset b8dd57d6 for chapter05/gcc-pass1.xml

Timestamp:

08/30/2007 05:34:55 PM (17 years ago)

Author:

Jeremy Huntwork <jhuntwork@…>

Children:

f65c459

Parents:

0d2c43f

Message:

Use --with-arch=i486 only for x86. Also force '-m64' for 64-bit builds.

Lastly, use 'make' instead of 'make bootstrap' on gcc pass 1. The bootstrap is now default.

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/branches/jh/BOOK@8349 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:

• chapter05/gcc-pass1.xml (modified) (2 diffs)

chapter05/gcc-pass1.xml

@@ -44 +44 @@
 cd ../gcc-build</userinput></screen>
 
+    <para>If our host is a multilib machine, we want to ensure that we
+    build 64-bit binaries, so we'll test for that and set a variable if so.
+    Also, the --with-arch flag is only necessary for x86 machines.</para>
+
+<screen><userinput>case $(uname -m) in
+  x86) WITHARCH="--with-arch=i486" ;;
+  x86_64) M64="-m64" ;;
+esac</userinput></screen>
+
     <para>Prepare GCC for compilation:</para>
 
-<screen><userinput>CC="gcc -B/usr/bin/" ../gcc-&gcc-version;/configure --prefix=/tools \
+<screen><userinput>CC="gcc -B/usr/bin/ $M64" ../gcc-&gcc-version;/configure --prefix=/tools \
     --with-local-prefix=/tools --disable-nls --disable-shared \
-    --enable-languages=c --disable-multilib --with-arch=i486</userinput></screen>
+    --enable-languages=c --disable-multilib \
+    $WITHARCH
+unset M64 WITHARCH</userinput></screen>
 
     <variablelist>
@@ -110 +121 @@
     <para>Continue with compiling the package:</para>
 
-<screen><userinput>make bootstrap</userinput></screen>
-
-    <variablelist>
-      <title>The meaning of the make parameter:</title>
-
-      <varlistentry>
-        <term><parameter>bootstrap</parameter></term>
-        <listitem>
-          <para>This target does not just compile GCC, but compiles it
-          several times. It uses the programs compiled in a first round
-          to compile itself a second time, and then again a third time.
-          It then compares these second and third compiles to make sure
-          it can reproduce itself flawlessly. This also implies that it
-          was compiled correctly.</para>
-        </listitem>
-      </varlistentry>
-
-    </variablelist>
+<screen><userinput>make</userinput></screen>
 
     <para>Compilation is now complete. At this point, the test suite would