Beyond Linux® From Scratch (System V Edition) - Version 11.1

Chapter 17. Networking Libraries

libevent-2.1.12

Introduction to libevent

libevent is an asynchronous event notification software library. The libevent API provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. Furthermore, libevent also supports callbacks due to signals or regular timeouts.

This package is known to build and work properly using an LFS-11.1 platform.

Package Information

libevent Dependencies

Optional

Doxygen-1.9.3 (for API documentation)

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/libevent

Installation of libevent

First, fix an issue that prevents rpcgen_event.py from working: 

sed -i 's/python/&3/' event_rpcgen.py

Install libevent by running the following commands: 

./configure --prefix=/usr --disable-static &&
make

If you have Doxygen-1.9.3 installed and wish to build API documentation, issue : 

doxygen Doxyfile

To test the results, issue: make verify. Six tests in every suite related to regress_ssl.c and regress_http.c are known to fail due to incompatibilities with OpenSSL-3.

Now, as the root user: 

make install

If you built the API documentation, install it by issuing the following commands as the root user: 

install -v -m755 -d /usr/share/doc/libevent-2.1.12/api &&
cp      -v -R       doxygen/html/* \
                    /usr/share/doc/libevent-2.1.12/api

Command Explanations

--disable-static: This switch prevents installation of static versions of the libraries.

Contents

Installed Program: event_rpcgen.py
Installed Libraries: libevent_core.so, libevent_extra.so, libevent_openssl.so, libevent_pthreads.so and libevent.so
Installed Directory: /usr/include/event2 and /usr/share/doc/libevent-2.1.12

Last updated on