<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Configure</title><meta name="generator" content="DocBook XSL Stylesheets V1.7
3.2" /><meta name="keywords" content=" ISO C++ , configure , options " /><meta name="keywords" content=" ISO C++ , library " /><link rel="start" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="bk01pt01ch02.html" title="Chapter 2. Setup" /><link rel="prev" href="bk01pt01ch02.html" title="Chapter 2. Setup" /><link rel="next" href="bk01pt01ch02s03.html" title="Make" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Configure</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk01pt01ch02.html">Prev</a> </td><th width="60%" align="center">Chapter 2. Setup</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt01ch02s03.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.setup.configure"></a>Configure</h2></div></div></div><p>
+<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Configure</title><meta name="generator" content="DocBook XSL Stylesheets V1.7
4.0" /><meta name="keywords" content=" ISO C++ , configure , options " /><meta name="keywords" content=" ISO C++ , library " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="bk01pt01ch02.html" title="Chapter 2. Setup" /><link rel="prev" href="bk01pt01ch02.html" title="Chapter 2. Setup" /><link rel="next" href="bk01pt01ch02s03.html" title="Make" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Configure</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk01pt01ch02.html">Prev</a> </td><th width="60%" align="center">Chapter 2. Setup</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt01ch02s03.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.setup.configure"></a>Configure</h2></div></div></div><p>
When configuring libstdc++, you'll have to configure the entire
<span class="emphasis"><em>gccsrcdir</em></span> directory. Consider using the
toplevel gcc configuration option
environment.
</p></dd><dt><span class="term"><code class="code">--enable-clock-gettime</code></span></dt><dd><p>This is an abbreviated form of
<code class="code">'--enable-clock-gettime=yes'</code>(described next).
- </p></dd><dt><span class="term"><code class="code">--enable-clock-gettime=OPTION</code></span></dt><dd><p>Enables link-type checks for the availability of the
- clock_gettime clocks, used in [time.clock] of the current C++0x draft.
- The choice OPTION=yes checks for the availability of the monotonic and
- realtime clocks in libc and libposix4. In case of need the latter is
- also linked to libstdc++ as part of the build process. OPTION=rt
- also searches (and, in case, links) librt. Note that the latter
- is not always desirable because, in glibc, for example, in turn it
- triggers the linking of libpthread too, which activates locking,
- a large overhead for single-thread programs. OPTION=no skips the
- tests completely. The default is OPTION=no.
+ </p></dd><dt><span class="term"><code class="code">--enable-libstdcxx-time=OPTION</code></span></dt><dd><p>Enables link-type checks for the availability of the
+ clock_gettime clocks, used in the implementation of [time.clock],
+ and of the nanosleep and sched_yield functions, used in the
+ implementation of [thread.thread.this] of the current C++0x draft.
+ The choice OPTION=yes checks for the availability of the facilities
+ in libc and libposix4. In case of need the latter is also linked
+ to libstdc++ as part of the build process. OPTION=rt also searches
+ (and, in case, links) librt. Note that the latter is not always
+ desirable because, in glibc, for example, in turn it triggers the
+ linking of libpthread too, which activates locking, a large overhead
+ for single-thread programs. OPTION=no skips the tests completely.
+ The default is OPTION=no.
</p></dd></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="bk01pt01ch02.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bk01pt01ch02.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bk01pt01ch02s03.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 2. Setup </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Make</td></tr></table></div></body></html>
OSDN Git Service
