6.11.2. Contents of Zlib
Installed libraries:
libz.{a,so}
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6.11. Zlib-1.2.5
The Zlib package contains compression and decompression routines used by some programs.
Approximate build time:
less than 0.1 SBU
Required disk space:
2.8 MB
6.11.1. Installation of Zlib
First, fix a typo in the package header file:
sed -i 's/ifdef _LARGEFILE64_SOURCE/ifndef _LARGEFILE64_SOURCE/' zlib.h
Prepare Zlib for compilation:
CFLAGS='-mstackrealign -fPIC -O3' ./configure --prefix=/usr
The meaning of the new configure environment variable:
-
CFLAGS='-mstackrealign -fPIC -O3' -
Setting CFLAGS overrides the default optimization in the package to prevent some run time errors. Note that the -mstackrealign may cause build failures in non-Intel architeture systems.
Compile the package:
make
To test the results, issue:
make check
Install the package:
make install
The shared library needs to be moved to /lib, and as a result the .so file in /usr/lib will need to be recreated:
mv -v /usr/lib/libz.so.* /lib ln -sfv ../../lib/libz.so.1.2.5 /usr/lib/libz.so