chpater06: Translate GMP instruction

chapter06/gmp.xml

@@ -23,8 +23,7 @@
   <sect2 role="package">
     <title/>
 
-    <para>The GMP package contains math libraries. These have useful functions
-    for arbitrary precision arithmetic.</para>
+    <para>GMP 软件包包含提供任意精度算术函数的数学库。</para>
 
     <segmentedlist>
       <segtitle>&buildtime;</segtitle>
@@ -39,22 +38,31 @@
   </sect2>
 
   <sect2 role="installation">
-    <title>安装GMP</title>
+    <title>安装 GMP</title>
 
     <note>
-      <para>If you are building for 32-bit x86, but you have a CPU which is
+      <!--para>If you are building for 32-bit x86, but you have a CPU which is
       capable of running 64-bit code <emphasis>and</emphasis> you have specified
       <envar>CFLAGS</envar> in the environment, the configure script will
       attempt to configure for 64-bits and fail.
-      Avoid this by invoking the configure command below with
+	  Avoid this by invoking the configure command below with -->
+
+      <para>如果您在为 32 位 x86 构建 LFS ，但您的 CPU 能够运行
+		  64 位代码， <emphasis>而且</emphasis> 您指定了
+		  <envar>CFLAGS</envar> 环境变量，配置脚本会试图为 64 位 CPU
+		  进行配置并且失败。为了避免这个问题，像下面这样执行 configure
+		  命令：
 <screen role="nodump"><userinput><parameter>ABI=32</parameter> ./configure ...</userinput></screen></para>
     </note>
 
     <note>
-      <para>The default settings of GMP produce libraries optimized for
+      <!--para>The default settings of GMP produce libraries optimized for
       the host processor.  If libraries suitable for processors less
       capable than the host's CPU are desired, generic libraries can be 
-      created by running the following:
+	  created by running the following:-->
+	  <para>GMP 的默认设定会生成为本机处理器优化的库。
+		  如果您希望获得适合功能不如本机的 CPU 的库，
+		  执行下列命令，以生成通用库：
 
 <screen role="nodump"><userinput>cp -v configfsf.guess config.guess
 cp -v configfsf.sub   config.sub</userinput></screen></para>
@@ -68,20 +76,19 @@ cp -v configfsf.sub   config.sub</userinput></screen></para>
             --docdir=/usr/share/doc/gmp-&gmp-version;</userinput></screen>
 
     <variablelist>
-      <title>The meaning of the new configure options:</title>
+      <title>新的配置选项的含义：</title>
 
       <varlistentry>
         <term><parameter>--enable-cxx</parameter></term>
         <listitem>
-          <para>This parameter enables C++ support</para>
+          <para>该参数启用 C++ 支持</para>
         </listitem>
       </varlistentry>
 
       <varlistentry>
         <term><parameter>--docdir=/usr/share/doc/gmp-&gmp-version;</parameter></term>
         <listitem>
-          <para>This variable specifies the correct place for the
-          documentation.</para>
+          <para>该变量指定文档的正确位置</para>
         </listitem>
       </varlistentry>
 
@@ -93,27 +100,35 @@ cp -v configfsf.sub   config.sub</userinput></screen></para>
 make html</userinput></screen>
 
     <important>
-      <para>The test suite for GMP in this section is considered critical.
-      Do not skip it under any circumstances.</para>
+      <para>本节中 GMP 的测试套件被认为是关键的，无论如何不能跳过。</para>
     </important>
 
     <para>测试编译结果：</para>
 
 <screen><userinput remap="test">make check 2>&amp;1 | tee gmp-check-log</userinput></screen>
  
-    <caution><para>The code in gmp is highly optimized for the processor where
+    <caution><!--para>The code in gmp is highly optimized for the processor where
     it is built. Occasionally, the code that detects the processor misidentifies
     the system capabilities and there will be errors in the tests or other
     applications using the gmp libraries with the message "Illegal
     instruction".  In this case, gmp should be reconfigured with the option
-    --build=x86_64-unknown-linux-gnu and rebuilt.</para></caution>
-
-    <para>Ensure that all 190 tests in the test suite passed.
-    Check the results by issuing the following command:</para>
+	build=x86_64-unknown-linux-gnu and rebuilt.</para-->
+	  <para>GMP 中的代码是针对本机处理器高度优化的。
+		  在偶然情况下，检测处理器的代码会错误识别 CPU 的功能，
+		  导致测试套件或使用 GMP 的其他程序输出消息
+		  <quote>Illegal instruction</quote> （非法指令）。
+		  如果发生这种情况，需要加入选项
+		  --build=x86_64-unknown-linux-gnu 并重新构建 GMP 。</para>
+	</caution>
+
+    <!--para>Ensure that all 190 tests in the test suite passed.
+    Check the results by issuing the following command:</para-->
+    <para>务必测试套件中的全部 190 个测试都被通过。
+		运行下列命令检验结果：</para>
 
 <screen><userinput remap="test">awk '/# PASS:/{total+=$3} ; END{print total}' gmp-check-log</userinput></screen>
 
-    <para>Install the package and its documentation:</para>
+    <para>安装该软件包和文档：</para>
 
 <screen><userinput remap="install">make install
 make install-html</userinput></screen>
@@ -124,11 +139,11 @@ make install-html</userinput></screen>
     <title>GMP 的内容</title>
 
     <segmentedlist>
-      <segtitle>Installed Libraries</segtitle>
+      <segtitle>安装的库</segtitle>
       <segtitle>安装的目录</segtitle>
 
       <seglistitem>
-        <seg>libgmp.so and libgmpxx.so</seg>
+        <seg>libgmp.so 和 libgmpxx.so</seg>
         <seg>/usr/share/doc/gmp-&gmp-version;</seg>
       </seglistitem>
     </segmentedlist>
@@ -141,7 +156,7 @@ make install-html</userinput></screen>
       <varlistentry id="libgmp">
         <term><filename class="libraryfile">libgmp</filename></term>
         <listitem>
-          <para>Contains precision math functions</para>
+          <para>包含任意精度数学函数</para>
           <indexterm zone="ch-system-gmp libgmp">
             <primary sortas="c-libgmp">libgmp</primary>
           </indexterm>
@@ -151,7 +166,7 @@ make install-html</userinput></screen>
       <varlistentry id="libgmpxx">
         <term><filename class="libraryfile">libgmpxx</filename></term>
         <listitem>
-          <para>Contains C++ precision math functions</para>
+          <para>包含 C++ 任意精度数学函数</para>
           <indexterm zone="ch-system-gmp libgmpxx">
             <primary sortas="c-libgmpxx">libgmpxx</primary>
           </indexterm>