Install Bzip2 by running the following commands:
make -f Makefile-libbz2_so &&
make bzip2recover libbz2.a &&
cp bzip2-shared /bin/bzip2 &&
cp bzip2recover /bin &&
cp bzip2.1 /usr/share/man/man1 &&
cp bzlib.h /usr/include &&
cp -a libbz2.so* libbz2.a /lib &&
rm /usr/lib/libbz2.a &&
cd /bin &&
ln -sf bzip2 bunzip2 &&
rm bzcat && ln -s bzip2 bzcat &&
cd /usr/share/man/man1 &&
ln -s bzip2.1 bunzip2.1 &&
ln -s bzip2.1 bzcat.1 &&
ln -s bzip2.1 bzip2recover.1
Although it's not strictly a part of a basic LFS system it's worth mentioning that a patch for Tar can be downloaded which enables the tar program to compress and uncompress using bzip2/bunzip2 easily. With a plain tar a user has to use constructions like bzcat file.tar.bz|tar xv or tar --use-compress-prog=bunzip2 -xvf file.tar.bz2 to use bzip2 and bunzip2 with tar. This patch gives the -y option so a user can unpack a Bzip2 archive with tar xvfy file.tar.bz2. Applying this patch will be mentioned later on when the Tar package is re-installed.
make -f Makefile-libbz2_so: This will cause bzip2 to be build using a different Makefile file, in this case the Makefile-libbz2_so file which creates a dynamic libbz2.so library and links the bzip2 utilities against it.
The Bzip2 packages contains the bzip2, bunzip2, bzcat and bzip2recover programs.
bzip2 compresses files using the Burrows-Wheeler block sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by more conventional LZ77/LZ78-based compressors, and approaches the performance of the PPM family of statistical compressors.
Bunzip2 decompresses files that are compressed with bzip2.
bzcat (or bzip2 -dc) decompresses all specified files to the standard output.
bzip2recover recovers data from damaged bzip2 files.