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| author | Timothy Bauscher <timothy@linuxfromscratch.org> | 2003-01-05 16:19:00 +0000 |
|---|---|---|
| committer | Timothy Bauscher <timothy@linuxfromscratch.org> | 2003-01-05 16:19:00 +0000 |
| commit | 5e40325fc2ddf3e60af6d47cb434e26099aebce6 (patch) | |
| tree | 22135e55be865d0809f7be116369b7d1b52cca50 /chapter05/setting-environment.xml | |
| parent | 2ae2d484bd3ccf46810df229c7986b1f5581ccbb (diff) | |
Applied a modified version of Alex's patch to split the in two.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2283 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
Diffstat (limited to 'chapter05/setting-environment.xml')
| -rw-r--r-- | chapter05/setting-environment.xml | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/chapter05/setting-environment.xml b/chapter05/setting-environment.xml new file mode 100644 index 000000000..f143b8b69 --- /dev/null +++ b/chapter05/setting-environment.xml @@ -0,0 +1,45 @@ +<sect1 id="ch05-settingenviron"> +<title>Setting up the environment</title> +<?dbhtml filename="settingenviron.html" dir="chapter05"?> + +<para>While logged in as user <emphasis>lfs</emphasis>, issue the +following commands to set up a good work environment:</para> + +<para><screen><userinput>cat > ~/.bash_profile << "EOF" +umask 022 +LFS=/mnt/lfs +LC_ALL=POSIX +CC="gcc -s" +export LFS LC_ALL CC +EOF +source ~/.bash_profile</userinput></screen></para> + +<para>This profile sets the umask to 022, so newly created files will and +directories will have the correct permissions. To be more specific, only +the file owner will have write permission to new files and directories. +Other users of the system will be have read permission, and executable +permission to directories. It is advisable to keep this setting throughout +your LFS installation.</para> + +<para>The LFS, LC_ALL, and CC environment variables are also set. The LFS +variable has been explained in previous chapters. LC_ALL is a variable used +for internationalization.</para> + +<para>The LC_ALL variable controls the localization of certain programs, +making their messages follow the conventions of a specified country. If your +host system uses a version of <emphasis>glibc</emphasis> older than 2.2.4, +having LC_ALL set to something other than "C" or "POSIX" during Chapter 5 +may cause trouble if you exit the chroot environment and wish to return later. +By setting LC_ALL to "POSIX" ("C" is an alias for "POSIX") we ensure that +everything will work as expected in the chroot environment.</para> + +<para>CC is a variable we set in order to prevent debugging symbols from +being compiled into our static packages. By omitting these symbols during +the linking stage of compilation, we save hard drive space and decrease our +build time.</para> + +<para>We are now prepared to begin building the temporary tools which will +support us in later chapters.</para> + +</sect1> + |