diff options
Diffstat (limited to 'chapter05/setting-environment.xml')
| -rw-r--r-- | chapter05/setting-environment.xml | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/chapter05/setting-environment.xml b/chapter05/setting-environment.xml index e52fd7b6b..636c05745 100644 --- a/chapter05/setting-environment.xml +++ b/chapter05/setting-environment.xml @@ -6,14 +6,24 @@ following commands to set up a good work environment:</para> <para><screen><userinput>cat > ~/.bash_profile << "EOF" +set +h umask 022 LFS=/mnt/lfs LC_ALL=POSIX -CC="gcc -s" -export LFS LC_ALL CC +LDFLAGS="-s" +PATH=/stage1/bin:$PATH +export LFS LC_ALL LDFLAGS PATH EOF source ~/.bash_profile</userinput></screen></para> +<para><userinput>set +h</userinput> turns off Bash's hash function. Hash +normally is a useful feature where Bash uses a hash table to remember the +full pathnames of executable files to avoid multiple `PATH' searches. +However, we'd like the new tools to become available as soon as they are +installed. By switching off the hash function, our "interactive" commands +(make, patch, sed, cp and so forth) will always use the newest available +during the build process.</para> + <para>This profile sets the umask to 022, so newly created files and directories will have the correct permissions. To be more specific, only the file owner will have write permission to new files and directories. @@ -32,7 +42,7 @@ 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 +<para>LDFLAGS 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> |