diff options
Diffstat (limited to 'chapter04/settingenviron.xml')
| -rw-r--r-- | chapter04/settingenviron.xml | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/chapter04/settingenviron.xml b/chapter04/settingenviron.xml index bac551e19..e40e4a45b 100644 --- a/chapter04/settingenviron.xml +++ b/chapter04/settingenviron.xml @@ -32,7 +32,7 @@ EOF</userinput></screen> ensuring a clean environment.</para> <para>The new instance of the shell is a <emphasis>non-login</emphasis> - shell, which does not read, and execute, the contents of <filename>/etc/profile</filename> or + shell, which does not read, and execute, the contents of the <filename>/etc/profile</filename> or <filename>.bash_profile</filename> files, but rather reads, and executes, the <filename>.bashrc</filename> file instead. Create the <filename>.bashrc</filename> file now:</para> @@ -59,10 +59,10 @@ EOF</userinput></screen> <para>The <command>set +h</command> command turns off <command>bash</command>'s hash function. Hashing is ordinarily a useful feature—<command>bash</command> uses a hash table to remember the - full path of executable files to avoid searching the <envar>PATH</envar> + full path to executable files to avoid searching the <envar>PATH</envar> time and again to find the same executable. However, the new tools should - be used as soon as they are installed. By switching off the hash function, - the shell will always search the <envar>PATH</envar> when a program is to + be used as soon as they are installed. Switching off the hash function forces + the shell to search the <envar>PATH</envar> whenever a program is to be run. As such, the shell will find the newly compiled tools in <filename class="directory">$LFS/tools/bin</filename> as soon as they are available without remembering a previous version of the same program @@ -115,10 +115,10 @@ EOF</userinput></screen> <varlistentry> <term><parameter>PATH=/usr/bin</parameter></term> <listitem> - <para>Many modern linux distributions have merged <filename + <para>Many modern Linux distributions have merged <filename class="directory">/bin</filename> and <filename class="directory">/usr/bin</filename>. When this is the case, the standard - <envar>PATH</envar> variable needs just to be set to <filename + <envar>PATH</envar> variable should be set to <filename class="directory">/usr/bin/</filename> for the <xref linkend="chapter-temporary-tools"/> environment. When this is not the case, the following line adds <filename class="directory">/bin</filename> @@ -141,7 +141,7 @@ EOF</userinput></screen> standard <envar>PATH</envar>, the cross-compiler installed at the beginning of <xref linkend="chapter-cross-tools"/> is picked up by the shell immediately after its installation. This, combined with turning off hashing, - limits the risk that the compiler from the host be used instead of the + limits the risk that the compiler from the host is used instead of the cross-compiler.</para> </listitem> </varlistentry> @@ -195,7 +195,8 @@ EOF</userinput></screen> </important> <para>Finally, to have the environment fully prepared for building the - temporary tools, source the just-created user profile:</para> + temporary tools, force the <command>bash</command> shell to read + the new user profile:</para> <screen><userinput>source ~/.bash_profile</userinput></screen> |