| 1 | <sect2>
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| 2 | <title>Command explanations</title>
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| 3 |
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| 4 | <para>
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| 5 | <userinput>--enable-static-link:</userinput> This configure
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| 6 | option causes Bash to be linked statically
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| 7 | </para>
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| 8 |
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| 9 | <para>
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| 10 | <userinput>--prefix=$LFS/usr:</userinput> This configure option installs
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| 11 | all of Bash's files under the $LFS/usr directory, which becomes the /usr
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| 12 | directory after the user chrooted into $LFS or when he rebooted
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| 13 | the system into LFS.
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| 14 | </para>
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| 15 |
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| 16 | <para>
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| 17 | <userinput>--bindir=$LFS/bin:</userinput> This installs the executable
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| 18 | files in $LFS/bin. We do this because we want bash to be in /bin, not in
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| 19 | /usr/bin. One reason being: the /usr partition might be on a seperate
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| 20 | partition which has to be mounted at some point. Before that partition is
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| 21 | mounted a user needs and will want to have bash available (it will be hard to
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| 22 | execute the boot scripts without a shell for instance).
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| 23 | </para>
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| 24 |
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| 25 | <para>
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| 26 | <userinput>--disable-nls:</userinput> This disables the build of NLS
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| 27 | (National Language Support). It's only a waste of time for now as Bash
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| 28 | will be reinstalled in the next chapter.
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| 29 | </para>
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| 30 |
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| 31 | <para>
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| 32 | <userinput>--with-curses:</userinput> This causes Bash to be linked
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| 33 | against the curses library instead of the default termcap library which
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| 34 | is becoming obsolete.
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| 35 | </para>
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| 36 |
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| 37 | <para>
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| 38 | <userinput>ln -s bash sh:</userinput> This command creates the sh
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| 39 | symlink that points to bash. Most scripts run themselves via 'sh'
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| 40 | (invoked by the #!/bin/sh as the first line in the scripts) which
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| 41 | invokes a special bash mode. Bash will then behave (as closely as
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| 42 | possible) as the original Bourne shell.
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| 43 | </para>
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| 44 |
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| 45 | <para>
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| 46 | The <userinput>&&</userinput>'s at the end of every line cause
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| 47 | the next command only to be executed when the previous command exists
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| 48 | with a return value of 0 indicating success. In case all of these
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| 49 | commands are copy&pasted
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| 50 | on the shell is is important to be ensured that if
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| 51 | ./configure fails, make isn't being executed and likewise if make fails
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| 52 | that make install isn't being executed, and so forth.
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| 53 | </para>
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| 54 |
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| 55 | </sect2>
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| 56 |
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