Linux From Scratch compilé de façon croisée - Sysroot - Version SVN-0.0.1-20090726-x86

Chapter 6. Installing Basic System Software

6.52. Vim-7.2

The Vim package contains a powerful text editor.

6.52.1. Environment Settings

This package requires compiler variables to be set for the target in the environment. 

export CC="${CLFS_TARGET}-gcc"
export CXX="${CLFS_TARGET}-g++"
export AR="${CLFS_TARGET}-ar"
export AS="${CLFS_TARGET}-as"
export RANLIB="${CLFS_TARGET}-ranlib"
export LD="${CLFS_TARGET}-ld"
export STRIP="${CLFS_TARGET}-strip"

6.52.2. Installation of Vim

[Tip]

Alternatives to Vim

If you prefer another editor—such as Emacs, Joe, or Nano—please refer to http://cblfs.cross-lfs.org/index.php/Category:Text_Editors for suggested installation instructions.

First, unpack both vim-7.2.tar.bz2 and (optionally) vim-7.2-lang.tar.gz archives into the same directory.

The following patch merges all updates from the 7.2 Branch from the Vim developers: 

patch -Np1 -i ../vim-7.2-branch_update-19.patch

The configure script is full of logic that aborts at the first sign of cross compiling. Work around this by setting the cached values of several tests with the following command: 

cat > src/auto/config.cache << EOF
vim_cv_getcwd_broken=no
vim_cv_memmove_handles_overlap=yes
vim_cv_stat_ignores_slash=no
vim_cv_terminfo=yes
vim_cv_tgent=zero
vim_cv_toupper_broken=no
vim_cv_tty_group=world
ac_cv_sizeof_int=4
EOF

Change the default location of the vimrc configuration file to /etc: 

cat >> src/feature.h << "EOF"
#define SYS_VIMRC_FILE "/etc/vimrc"
EOF

Prepare Vim for compilation: 

CPPFLAGS="-DUNUSED=" ./configure --build=${CLFS_HOST} --host=${CLFS_TARGET} \
    --prefix=/usr --enable-multibyte --enable-gui=no \
    --disable-gtktest --disable-xim --with-features=normal \
    --disable-gpm --without-x --disable-netbeans \
    --with-tlib=ncurses

The meaning of the configure options:

--enable-multibyte

This optional but highly recommended switch enables support for editing files in multibyte character encodings. This is needed if using a locale with a multibyte character set. This switch is also helpful to be able to edit text files initially created in Linux distributions like Fedora that use UTF-8 as a default character set.

Compile the package: 

make

Install the package: 

make DESTDIR=${CLFS} install

Many users are accustomed to using vi instead of vim. Some programs, such as vigr and vipw, also use vi. Create a symlink to permit execution of vim when users habitually enter vi and allow programs that use vi to work: 

ln -sfv vim ${CLFS}/usr/bin/vi

By default, Vim's documentation is installed in /usr/share/vim. The following symlink allows the documentation to be accessed via /usr/share/doc/vim-7.2, making it consistent with the location of documentation for other packages: 

ln -sfnv ../vim/vim72/doc ${CLFS}/usr/share/doc/vim-7.2

If an X Window System is going to be installed on the CLFS system, you may want to recompile Vim after installing X. Vim comes with a GUI version of the editor that requires X and some additional libraries to be installed. For more information, refer to the Vim documentation and the Vim installation page in CBLFS at http://cblfs.cross-lfs.org/index.php/Vim.

6.52.3. Configuring Vim

By default, vim runs in vi-incompatible mode. This may be new to users who have used other editors in the past. The “nocompatible” setting is included below to highlight the fact that a new behavior is being used. It also reminds those who would change to “compatible” mode that it should be the first setting in the configuration file. This is necessary because it changes other settings, and overrides must come after this setting. Create a default vim configuration file by running the following: 

cat > ${CLFS}/etc/vimrc << "EOF"
" Begin /etc/vimrc

set nocompatible
set backspace=2
syntax on
if (&term == "iterm") || (&term == "putty")
  set background=dark
endif

" End /etc/vimrc
EOF

The set nocompatible makes vim behave in a more useful way (the default) than the vi-compatible manner. Remove the “no” to keep the old vi behavior. The set backspace=2 allows backspacing over line breaks, autoindents, and the start of insert. The syntax on enables vim's syntax highlighting. Finally, the if statement with the set background=dark corrects vim's guess about the background color of some terminal emulators. This gives the highlighting a better color scheme for use on the black background of these programs.

Documentation for other available options can be obtained by running the following command: 

vim -c ':options'

6.52.4. Contents of Vim

Installed programs: efm_filter.pl, efm_perl.pl, ex (link to vim), less.sh, mve.awk, pltags.pl, ref, rview (link to vim), rvim (link to vim), shtags.pl, tcltags, vi (link to vim), view (link to vim), vim, vim132, vim2html.pl, vimdiff (link to vim), vimm, vimspell.sh, vimtutor, and xxd

Short Descriptions

efm_filter.pl

A filter for creating an error file that can be read by vim

efm_perl.pl

Reformats the error messages of the Perl interpreter for use with the “quickfix” mode of vim

ex

Starts vim in ex mode

less.sh

A script that starts vim with less.vim

mve.awk

Processes vim errors

pltags.pl

Creates a tags file for Perl code for use by vim

ref

Checks the spelling of arguments

rview

Is a restricted version of view; no shell commands can be started and view cannot be suspended

rvim

Is a restricted version of vim; no shell commands can be started and vim cannot be suspended

shtags.pl

Generates a tags file for Perl scripts

tcltags

Generates a tags file for TCL code

view

Starts vim in read-only mode

vi

Link to vim

vim

Is the editor

vim132

Starts vim with the terminal in 132-column mode

vim2html.pl

Converts Vim documentation to HypterText Markup Language (HTML)

vimdiff

Edits two or three versions of a file with vim and show differences

vimm

Enables the DEC locator input model on a remote terminal

vimspell.sh

Spell checks a file and generates the syntax statements necessary to highlight in vim. This script requires the old Unix spell command, which is provided neither in CLFS nor in BLFS

vimtutor

Teaches the basic keys and commands of vim

xxd

Creates a hex dump of the given file; it can also do the reverse, so it can be used for binary patching