Cross-Compiled Linux From Scratch - Version SYSVINIT-20170702-x86_64-Multilib

Chapter 10. Installing Basic System Software

10.60. Bash-4.4

The Bash package contains the Bourne-Again SHell.

10.60.1. Installation of Bash

The following patch contains updates from the maintainer. The maintainer of Bash only releases these patches to fix serious issues: 

patch -Np1 -i ../bash-4.4-branch_update-1.patch

The following sed points configure towards the correct library directory while searching for Readline: 

sed -i "/ac_cv_rl_libdir/s@/lib@&64@" configure

Prepare Bash for compilation: 

CC="gcc ${BUILD64}" CXX="g++ ${BUILD64}" \
./configure \
    --prefix=/usr \
    --without-bash-malloc \
    --with-installed-readline \
    --docdir=/usr/share/doc/bash-4.4

The meaning of the new configure option:

--with-installed-readline

This option tells Bash to use the readline library that is already installed on the system rather than using its own readline version.

Compile the package: 

make

To test the results, issue: 

make tests

Install the package: 

make install

Move the bash binary to /bin, overwriting the symlink that was previously created: 

mv -v /usr/bin/bash /bin

Run the newly compiled bash program (replacing the one that is currently being executed): 

exec /bin/bash --login +h
[Note]

Note

The parameters used make the bash process an interactive login shell and continue to disable hashing so that new programs are found as they become available.

10.60.2. Contents of Bash

Installed programs: bash, bashbug, sh (link to bash)
Installed directory: /usr/share/doc/bash-4.4

Short Descriptions

bash

A widely-used command interpreter; it performs many types of expansions and substitutions on a given command line before executing it, thus making this interpreter a powerful tool

bashbug

A shell script to help the user compose and mail standard formatted bug reports concerning bash

sh

A symlink to the bash program; when invoked as sh, bash tries to mimic the startup behavior of historical versions of sh as closely as possible, while conforming to the POSIX standard as well