To build libevent, type

$ ./configure && make

     (If you got libevent from the subversion repository, you will
      first need to run the included "autogen.sh" script in order to
      generate the configure script.)

Install as root via

# make install

You can run the regression tests by

$ make verify

Before, reporting any problems, please run the regression tests.

To enable the low-level tracing build the library as:

CFLAGS=-DUSE_DEBUG ./configure [...]

Acknowledgements:
-----------------

The following people have helped with suggestions, ideas, code or
fixing bugs:

  Alejo
  Weston Andros Adamson
  William Ahern
  Stas Bekman
  Andrew Danforth
  Mike Davis
  Shie Erlich
  Alexander von Gernler
  Artur Grabowski
  Aaron Hopkins
  Claudio Jeker
  Scott Lamb
  Adam Langley
  Philip Lewis
  David Libenzi
  Nick Mathewson
  Andrey Matveev
  Richard Nyberg
  Jon Oberheide
  Phil Oleson
  Dave Pacheco
  Tassilo von Parseval
  Pierre Phaneuf
  Jon Poland
  Bert JW Regeer
  Dug Song
  Taral

If I have forgotten your name, please contact me.

Name: libevent
URL: http://libevent.org/
Version: 1.4.15
License: BSD
Security Critical: yes

Local Modifications:
Rather than use libevent's own build system, we just build a Chrome
static library using GYP.

1) Run configure and "make event-config.h" on Linux, FreeBSD, Solaris,
   and Mac and copy config.h and event-config.h to linux/, freebsd/,
   solaris/, and mac/ respectively.
2) Add libevent.gyp.
3) chromium.patch is applied to make the following changes:
   - Allow libevent to be used without being installed by changing <...>
     #includes to "...".
   - Fix a race condition in event_del.
   - Optimistically assume CLOCK_MONOTONIC is available and fallback if it
     fails, rather than explicitly testing for it.
   - Remove an unneeded variable that causes a -Werror build failure.
   - Add an #ifndef to fix a preprocessor redefined -Werror build failure.
   - Revert the patch from http://sourceforge.net/p/levent/bugs/223/ that
     introduces use-after-free memory corruption when an event callback frees
     the struct event memory.
   - Remove deprecated global variables, event_sigcb and event_gotsig
     (essentially unused) that trigger tsan errors. (crbug/605894)
4) The directories WIN32-Code and WIN32-Prj are not included.
5) The configs for android were copied from Linux's which were very close to
   android one with the exception of HAVE_FD_MASK and HAVE_STRLCPY.
6) Add files to support building with the PNaCl toolchain. Added
   libevent_nacl_nonsfi.gyp for build rule. nacl_nonsfi/config.h and
   nacl_nonsfi/event-config.h are derived from linux/ counterparts.
   nacl_nonsfi/random.c is also added to provide the random() function,
   which is missing in the newlib-based PNaCl toolchain.
7) Stub out signal.c for nacl_helper_nonsfi. socketpair() will be prohibited
   by sandbox in nacl_helper_nonsfi.
8) Remove an unnecessary workaround for OS X 10.4 from kqueue.c. It was causing
   problems on macOS Sierra.
9) Change buffer.c to not redefine _GNU_SOURCE.