ab51b22c07
Similar to the gnulib changes we just incorporated into maint.mk, it's time to use '$(VC_LIST) | xargs program' instead of 'program $$($(VC_LIST))', in order to bypass the problem of hitting argv limits due to our large set of files. Drop several uses of $$files as a temporary variable when we can instead directly use xargs. While at it, fix a typo in the prohibit_windows_special_chars error message. Note that 'grep $pattern $(generate list)' has be be rewritten as 'generate list | xargs grep $pattern /dev/null' - this is because for a list that is just long enough, and without /dev/null, xargs could make a worst-case split of 'grep $pattern all but one; grep $pattern last' which has different output (grep includes the filename when there was more than one file, but omits it for a single file), while our conversion gives 'grep $pattern /dev/null all but one; grep $pattern /dev/null last'. We are less concerned about the empty list case (why would we run the syntax check if we didn't have at least one file?), but grepping /dev/null happens to produce no output and thus nicely also solves that problem without relying on the GNU extension of 'xargs -r'. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Libvirt API for virtualization
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.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General
Public License, version 2.1 (or later). Some parts of the code that are
not part of the C library may have the more restrictive GNU General
Public License, version 2.1 (or later). See the files COPYING.LESSER
and COPYING for full license terms & conditions.
Installation
Libvirt uses the GNU Autotools build system, so in general can be built and installed with the usual commands. For example, to build in a manner that is suitable for installing as root, use:
$ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
$ make
$ sudo make install
While to build & install as an unprivileged user
$ ./configure --prefix=$HOME/usr
$ make
$ make install
The libvirt code relies on a large number of 3rd party libraries. These will
be detected during execution of the configure script and a summary printed
which lists any missing (optional) dependencies.
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: