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Diffstat (limited to 'chapter05')
| -rw-r--r-- | chapter05/gcc-pass2-inst.xml | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/chapter05/gcc-pass2-inst.xml b/chapter05/gcc-pass2-inst.xml index 430671688..02f342f5c 100644 --- a/chapter05/gcc-pass2-inst.xml +++ b/chapter05/gcc-pass2-inst.xml @@ -3,13 +3,26 @@ <sect2> <title>Re-installation of GCC</title> -<para>The tools required to test GCC and Binutils are installed now -(Expect, Tcl and DejaGnu). We can continue on rebuilding GCC and Binutils, -link them against the new Glibc, and test them properly. One thing to note, -however, is that these test suites are highly dependent on the features -supported by your host distribution. Most notably, a host distribution -which does not properly support the devpts filesystem will cause most of -these tests to fail.</para> +<para>The tools required to test GCC and Binutils are installed now (Tcl, Expect +and DejaGnu). We can continue on rebuilding GCC and Binutils, link them against +the new Glibc, and test them properly. One thing to note, however, is that these +test suites are highly dependent on properly functioning pseudo terminals (PTYs) +which are provided by your host distribution. These days, PTYs are most commonly +implemented via the <emphasis>devpts</emphasis> file system. You can quickly +check if your host system is set up correctly in this regard by performing a +simple test:</para> + +<para><screen><userinput>expect -c "spawn ls"</userinput></screen></para> + +<para>If you receive the message:</para> + +<para><screen>The system has no more ptys. Ask your system administrator to create more.</screen></para> + +<para>Your host distribution is not set up for proper PTY operation. In this +case there is no point in running the test suites for GCC and Binutils until you +are able to resolve the issue. You can consult the LFS Wiki at +<ulink url="http://wiki.linuxfromscratch.org"/> for more information on how to +get PTYs working.</para> <note><para>It's worth pointing out that the GCC test suite we run in this section is considered not as critical as the one we run in Chapter 6.</para></note> |