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Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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Eric Blake 70024dc919 build: more workarounds for if_bridge.h 
This is a second attempt at fixing the problem first attempted
in commit 2df8d99; basically undoing the fact that it was
reverted in commit 43cee32f, plus fixing two more issues: the
code in configure.ac has to EXACTLY match virnetdevbridge.c
with regards to declaring in6 types before using if_bridge.h,
and the fact that RHEL 5 has even more conflicts:

In file included from util/virnetdevbridge.c:49:
/usr/include/linux/in6.h:47: error: conflicting types for 'in6addr_any'
/usr/include/netinet/in.h:206: error: previous declaration of 'in6addr_any' was here
/usr/include/linux/in6.h:49: error: conflicting types for 'in6addr_loopback'
/usr/include/netinet/in.h:207: error: previous declaration of 'in6addr_loopback' was here

The rest of this commit message borrows from the original try
of 2df8d99:

A fresh checkout on a RHEL 6 machine with these packages:
kernel-headers-2.6.32-405.el6.x86_64
glibc-2.12-1.128.el6.x86_64
failed to configure with this message:
checking for linux/if_bridge.h... no
configure: error: You must install kernel-headers in order to compile libvirt with QEMU or LXC support

Digging in config.log, we see that the problem is identical to
what we fixed earlier in commit d12c2811:

configure:98831: checking for linux/if_bridge.h
configure:98853: gcc -std=gnu99 -c -g -O2  conftest.c >&5
In file included from /usr/include/linux/if_bridge.h:17,
                 from conftest.c:559:
/usr/include/linux/in6.h:31: error: redefinition of 'struct in6_addr'
/usr/include/linux/in6.h:48: error: redefinition of 'struct sockaddr_in6'
/usr/include/linux/in6.h:56: error: redefinition of 'struct ipv6_mreq'
configure:98860: $? = 1

I had not hit it earlier because I was using incremental builds,
where config.cache had shielded me from the kernel-headers breakage.

* configure.ac (if_bridge.h): Avoid conflicting type definitions.
* src/util/virnetdevbridge.c (includes): Also sanitize for RHEL 5.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-08-09 09:57:24 -06:00
.gnulib@644c40496c maint: update to latest gnulib 2013-07-19 05:53:02 -06:00
build-aux Add API for calling systemd-machined's DBus API 2013-07-22 13:09:58 +01:00
daemon build: fix missing max_queued_clients in augeas test file for libvirtd.conf 2013-08-05 15:09:52 -04:00
docs Add info about access control checks into API reference 2013-08-08 11:59:46 +01:00
examples examples: fix mingw build vs. printf 2013-07-29 12:53:36 -06:00
gnulib maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
include qemu: support to drop disk with 'optional' startupPolicy 2013-08-07 15:11:15 +08:00
m4 configure: fix formatting of missing pkg-config modules error 2013-08-08 13:31:10 -06:00
po Introduce a virt-login-shell binary 2013-08-08 16:36:31 +01:00
python Delete obsolete / unused python test files 2013-07-30 14:13:58 +01:00
src build: more workarounds for if_bridge.h 2013-08-09 09:57:24 -06:00
tests tests: test negative number through dbus 2013-08-09 08:57:01 -06:00
tools Fix double-free and broken logic in virt-login-shell 2013-08-09 12:55:59 +01:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore Add an example config file for virtlockd 2013-08-09 15:03:04 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap Autogenerate AUTHORS 2012-10-19 12:44:56 -04:00
AUTHORS.in Add John Ferlan to the committers list 2013-02-05 10:59:32 -05:00
autobuild.sh Set PKG_CONFIG_LIBDIR in autobuild.sh 2013-05-17 17:09:29 +01:00
autogen.sh autogen: Handle case when libvirt's submodule 2013-07-19 13:45:22 +02:00
bootstrap maint: update to latest gnulib 2013-07-19 05:53:02 -06:00
bootstrap.conf maint: update to latest gnulib 2013-07-19 05:53:02 -06:00
cfg.mk Split TLS test into two separate tests 2013-08-08 10:00:42 +01:00
ChangeLog-old virterror.c: Fix several spelling mistakes 2012-02-03 11:32:51 -07:00
configure.ac build: more workarounds for if_bridge.h 2013-08-09 09:57:24 -06:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
HACKING Fix minor typos in messages and docs 2013-07-30 07:07:33 -06:00
libvirt.pc.in build: silence warning from autoconf 2012-05-30 09:22:02 -06:00
libvirt.spec.in Add an example config file for virtlockd 2013-08-09 15:03:04 +01:00
Makefile.am maint: split long lines in Makefiles 2013-07-19 05:25:35 -06:00
Makefile.nonreentrant maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
mingw-libvirt.spec.in conf: add features to volume target XML 2013-06-21 13:25:30 +02:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
run.in run: license as LGPL 2013-02-23 14:03:19 -07:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>