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	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	We do not recommend using customized optimizations. They can make a program run slightly faster, but they may also cause compilation difficulties, and problems when running the program. If a package refuses to compile with a customized optimization, try to compile it without optimization and see if that fixes the problem. Even if the package does compile when using a customized optimization, there is the risk it may have been compiled incorrectly because of the complex interactions between the code and the build tools. Also note that the <option>-march</option> and <option>-mtune</option> options using values not specified in the book have not been tested. This may cause problems with the toolchain packages (Binutils, GCC and Glibc). The small potential gains achieved by customizing compiler optimizations are often outweighed by the risks. First-time builders of LFS are encouraged to build without custom optimizations.	我们不推荐在编译中使用优化。编译优化可以使程序跑得稍微快一点，但也可能在编译或运行的过程中带来问题。如果一个软件包在打开优化时无法编译，试着关闭优化再编译它。即使一个软件包在打开优化时可以编译，由于源代码和编译工具的复杂相互作用，仍然存在编译不正确的风险。另外请注意，除本书明确说明外，设定 <option>-march</option> 和 <option>-mtune</option> 是未经验证的。它们可能在工具链软件包 (Binutils、GCC 和 Glibc) 中引发问题。使用编译优化带来的微小性能增益往往不值得冒编译错误的风险。我们建议第一次构建 LFS 的读者不要使用自定义的优化选项。这样，得到的系统仍然会运行得很快，而且会很稳定。
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	On the other hand, we keep the optimizations enabled by the default configuration of the packages. In addition, we sometimes explicitly enable an optimized configuration provided by a package but not enabled by default. The package maintainers have already tested these configurations and consider them safe, so it's not likely they would break the build. Generally the default configuration already enables <option>-O2</option> or <option>-O3</option>, so the resulting system will still run very fast without any customized optimization, and be stable at the same time.
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	The SBU values and required disk space include test suite data for all applicable packages in <xref linkend="chapter-building-system"/>. SBU values have been calculated using four CPU cores (-j4) for all operations unless specified otherwise.	对于拥有可用的测试套件的软件包，<xref linkend="chapter-building-system"/>中给出的 SBU 值和需要的磁盘空间包含了运行测试套件需要的时间和磁盘空间。SBU 值根据仅使用单个 CPU 核心 (-j1) 进行操作时测得的时间计算。
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	About Libraries	关于库
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	In general, the LFS editors discourage building and installing static libraries. Most static libraries have been made obsolete in a modern Linux system. In addition, linking a static library into a program can be detrimental. If an update to the library is needed to remove a security problem, every program that uses the static library will need to be relinked with the new library. Since the use of static libraries is not always obvious, the relevant programs (and the procedures needed to do the linking) may not even be known.	一般来说，LFS 作者不推荐构建和安装静态库。它们是为了某些在现代 Linux 系统中早已过时的原因而存在的。另外，将静态库链接到程序中可能是有害的。如果需要更新这个库以解决安全问题，所有使用该静态库的程序都要重新链接到新版本的库。程序对静态库的使用并不总是显然的，甚至可能无法查明有哪些程序需要重新链接 (以及如何重新链接)。
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	The procedures in this chapter remove or disable installation of most static libraries. Usually this is done by passing a <option>--disable-static</option> option to <command>configure</command>. In other cases, alternate means are needed. In a few cases, especially Glibc and GCC, the use of static libraries remains an essential feature of the package building process.	在本章的安装过程中，我们删除或者禁止安装多数静态库。一般来说，传递 <option>--disable-static</option> 选项给 <command>configure</command> 就可以禁用静态库。然而，某些情况下需要其他手段。在极个别情况下，特别是对于 Glibc 和 GCC，静态库对于一般的软件包构建过程仍然很关键，就不能禁用静态库。
	Linux From Scratch 12.3/chapter08_introduction — Chinese (Simplified Han script)	For a more complete discussion of libraries, see <ulink url="&blfs-book;introduction/libraries.html"> Libraries: Static or shared?</ulink> in the BLFS book.	关于库的更详细讨论，可以参阅 BLFS 手册中的 <ulink url="&blfs-root;/view/&short-version;/introduction/libraries.html">Libraries: Static or shared?</ulink> 一节。