Move shadow to before gcc so the gcc tests can use su

chapter01/changelog.xml

@@ -44,6 +44,10 @@
     <listitem>
       <para>2018-08-12</para>
       <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - 将 shadow 移到 gcc 之前，
+          以便使用 su 以非特权用户身份运行 gcc 测试。</para>
+        </listitem>
         <listitem>
           <para>[bdubbs] - 在第 5 章中增加 perl 配置选项，
           以保证不使用宿主系统中的库。</para>

chapter06/chapter06.xml

@@ -30,6 +30,7 @@
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gmp.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="mpfr.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="mpc.xml"/>
+  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="shadow.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="gcc.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="bzip2.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="pkgconfig.xml"/>
@@ -38,7 +39,7 @@
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="acl.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="libcap.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="sed.xml"/>
-  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="shadow.xml"/>
+<!--  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="shadow.xml"/>-->
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="psmisc.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="iana-etc.xml"/>
   <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="bison.xml"/>