10.33. Bzip2-1.0.6

The Bzip2 package contains programs for compressing and decompressing files. Compressing text files with bzip2 yields a much better compression percentage than with the traditional gzip.

10.33.1. Installation of Bzip2

By default Bzip2 creates some symlinks that use absolute pathnames. The following sed will cause them to be created with relative paths instead:

sed -i -e 's:ln -s -f $(PREFIX)/bin/:ln -s :' Makefile

Make Bzip2 install its manpages in /usr/share/man instead of /usr/man:

sed -i 's@X)/man@X)/share/man@g' ./Makefile

The Bzip2 package does not contain a configure script. Compile it with:

make -f Makefile-libbz2_so
make clean

The -f flag will cause Bzip2 to be built 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.

Recompile the package using a non-shared library and test it:

make

Install the programs:

make PREFIX=/usr install

Install the shared bzip2 binary into the /bin directory, make some necessary symbolic links, and clean up:

cp -v bzip2-shared /bin/bzip2
cp -av libbz2.so* /lib
ln -sv ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so
rm -v /usr/bin/{bunzip2,bzcat,bzip2}
ln -sv bzip2 /bin/bunzip2
ln -sv bzip2 /bin/bzcat

10.33.2. Contents of Bzip2