Commit Graph

98 Commits

Author SHA1 Message Date
Simon Kobyda
e950310f14 vsh: Fix broken build on mingw
The function wcwidth() doesn't exist on mingw. However, it does exist in
gnulib, so we can rely on that.

Signed-off-by: Simon Kobyda <skobyda@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-28 08:31:32 +02:00
Michal Privoznik
60da4a1148 virrandom: Make virRandomBits better
Now that we have strong PRNG generator implemented in
virRandomBytes() let's use that instead of gnulib's random_r.

Problem with the latter is in way we seed it: current UNIX time
and libvirtd's PID are not that random as one might think.
Imagine two hosts booting at the same time. There's a fair chance
that those hosts spawn libvirtds at the same time and with the
same PID. This will result in both daemons generating the same
sequence of say MAC addresses [1].

1: https://www.redhat.com/archives/libvirt-users/2018-May/msg00097.html

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-06-05 10:31:19 +02:00
Ján Tomko
799011bbe7 vircrypto: Rely on GnuTLS for hash functions
Ditch the use of gnulib's digest functions in favor of GnuTLS,
which might be more likely to get FIPS-certified.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-14 14:05:21 +02:00
Daniel P. Berrangé
c0a8ea450d po: provide custom make rules for po file management
Historically we have relied on autopoint/gettextize to install a
standard po/Makefile.in.in. There is very limited scope for customizing
this and it also causes a bunch of extra stuff to be pulled into
configure.ac which potentially clashes with gnulib. Writing make rules
for po file management is no more difficult than any other rules libvirt
has, so stop using autopoint/gettextize.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-04-19 10:35:58 +01:00
Ján Tomko
ad9e72f5fa hvsupport: use a regex instead of XML::XPath
When generating the hvsupport.html.in file, we parse the -api.xml
files generated by apibuild.py to know in which HTML file the API
function is.

Doing an XPath query for every single 'function' element in the
file is inefficient.

Since the XML file is generated by another of our build scripts
(apibuild.py, using Python's standard 'output.write' XML library),
just find the function name->file mapping by a regex upfront.

Also add a note about this next to the line that generates it
in apibuild.py and do not check if XML::XPath is installed in
bootstrap since we no longer use it.
2016-07-19 18:42:44 +02:00
Fabian Freyer
b436a8ae5c gnulib: add getopt module
Unconditionally use gnulib's getopt module. This is needed by the bhyve driver
to provide a reentrant interface for getopt.

Several gnulib headers rely on features.h being included by ctype.h to provide
__GNUC_PREREQ, but on systems without glibc, this is not provided. In these
cases __GNUC_PREREQ gets redefined to 0, which causes build errors from checks
in src/internal.h.
Therefore, define __GNUC_PREREQ as early as possible. config-post.h is probably
the first header that is included, before any other headers.
2016-07-10 15:39:44 -04:00
Michal Privoznik
b099aa88e9 build: use gnulib's unsetenv
Now that gnulib has lifted it's licensing of unsetenv, we should
use it. Just like we use its counterpart - setenv, already.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-05-28 23:13:26 +02:00
Michal Privoznik
713994bd5e bootstrap: Don't require python-config
We've split the python bindings a long time ago. However,
we are still requiring python-config (as an obfuscation to
python-devel). This does not make any sense. The only thing
we need is python, not python-devel.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-08-06 14:35:14 +02:00
Jim Fehlig
d2f80a772f Revert "bootstrap.conf: add check for flex"
This reverts commit cab767831f.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-01-12 10:14:30 -07:00
Pavel Hrdina
cab767831f bootstrap.conf: add check for flex
We need the flex to generate new xen_xl_disk parser.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-01-08 17:23:57 +01:00
Martin Kletzander
e9e5eee5a8 build: Move check for XML::XPath into bootstrap
The module XML::XPath is needed when building from git only (no need to
have it when building from tarball), so this patch moves the check from
specfile into bootstrap.conf.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2014-12-09 08:23:21 +01:00
Pavel Hrdina
ff28ebf136 internal: add macro to round value to the next closest power of 2
There are two special cases, if the input number is 0 or the number is
larger then 2^31 (for 32bit unsigned int). For the special cases the
return value is 0 because they cannot be rounded.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2014-11-24 22:05:55 +01:00
Daniel P. Berrange
ae53e5d10e Add helpers for getting env vars in a setuid environment
Care must be taken accessing env variables when running
setuid. Introduce a virGetEnvAllowSUID for env vars which
are safe to use in a setuid environment, and another
virGetEnvBlockSUID for vars which are not safe. Also add
a virIsSUID helper method for any other non-env var code
to use.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-10-21 14:03:52 +01:00
Giuseppe Scrivano
70dadfa7e7 build: use the gnulib version of the .m4 files when present
prevent aclocal from preferring .m4 files under m4/ over the version
provided by gnulib, by using only one directory.

I have noticed this after './configure --help' gave me two different
versions of "--enable-threads".  This was caused by aclocal that
preferred the version of lock.m4 provided by autopoint instead of
using the newer version distributed with gnulib.

Having two different directories made sense back when we checked
gnulib files into libvirt.git, but that was ages ago.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2013-10-16 11:07:24 -06:00
Eric Blake
14b4b1e2cb maint: avoid bootstrap warning
I noticed that in a fresh checkout, autogen.sh generated the
following output, but continued on with execution:

autoreconf: running: automake --add-missing --copy --force-missing
gnulib/tests/Makefile.am:28: TESTS was already defined in condition TRUE, which includes condition WITH_EXPENSIVE_TESTS ...
gnulib/tests/gnulib.mk:28: ... `TESTS' previously defined here
gnulib/tests/Makefile.am:19:   `gnulib/tests/gnulib.mk' included from here

and after the run, line 28 of gnulib.mk lists GNULIB_TESTS, not TESTS.
After more investigation, I found that it is because gnulib bootstrap
provides two hooks, one before automake, and the other after; we used
the one that ran after, and were then rerunning automake ourselves;
and the warning was from the first run.  But a manual second run is
pointless if we use the right hook in the first place.

The wrong function name has been latent since commit 38c9440, and we
tried to work around it in commit 6cbab7c, but it took commit 70363ea
to finally change output enough for me to realize the root cause.

* bootstrap.conf (bootstrap_epilogue): Rename...
(bootstrap_post_import_hook): ...so that it gets run before automake.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-08-15 16:54:06 -06:00
Eric Blake
70363ea9ff build: add configure option to disable gnulib tests
The gnulib testsuite is relatively stable - the only times it is
likely to have a test change from pass to fail is on a gnulib
submodule update or a major system change (such as moving from
Fedora 18 to 19, or other large change to libc).  While it is an
important test for end users on arbitrary machines (to make sure
that the portability glue works for their machine), it mostly
wastes time for development testing (as most developers aren't
making any of the major changes that would cause gnulib tests
to alter behavior).  Thus, it pays to make the tests optional
at configure time, defaulting to off for development, on for
tarballs, with autobuilders requesting it to be on.  It also
helps to allow a make-time override, via VIR_TEST_EXPENSIVE=[01]
(much the way automake sets up V=[01] for overriding the configure
time default of how verbose to be).

Automake has some pretty hard-coded magic with regards to the
TESTS variable; I had quite a job figuring out how to keep
'make distcheck' passing regardless of the configure option
setting in use, while still disabling the tests at runtime
when I did not configure them on and did not use the override
variable.  Thankfully, we require GNU make, which lets me
hide some information from Automake's magic handling of TESTS.

* bootstrap.conf (bootstrap_epilogue): Munge gnulib test variable.
* configure.ac (--enable-expensive-tests): Add new enable switch.
(VIR_TEST_EXPENSIVE_DEFAULT, WITH_EXPENSIVE_TESTS): Set new
witnesses.
* gnulib/tests/Makefile.am (TESTS): Make tests conditional on
configure settings and the VIR_TEST_EXPENSIVE variable.
* tests/Makefile.am (TESTS_ENVIRONMENT): Expose VIR_TEST_EXPENSIVE
to all tests.
* autobuild.sh: Enable all tests during autobuilds.
* libvirt.spec.in (%configure): Likewise.
* mingw-libvirt.spec.in (%mingw_configure): Likewise.
* docs/hacking.html.in: Document the option.
* HACKING: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-08-12 10:02:38 -06:00
Eric Blake
ac0852c72a maint: update to latest gnulib
Upstream gnulib recently patched a bug in bootstrap, for projects
that use a different name than build-aux for a subdirectory.  We
don't, but it doesn't hurt to update.

* .gnulib: Update, for bootstrap fix.
* bootstrap: Sync to upstream.
* bootstrap.conf: Match upstream bug fix.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-07-19 05:53:02 -06:00
Eric Blake
75c125641a util: add virGetGroupList
Since neither getpwuid_r() nor initgroups() are safe to call in
between fork and exec (they obtain a mutex, but if some other
thread in the parent also held the mutex at the time of the fork,
the child will deadlock), we have to split out the functionality
that is unsafe.  At least glibc's initgroups() uses getgrouplist
under the hood, so the ideal split is to expose getgrouplist for
use before a fork.  Gnulib already gives us a nice wrapper via
mgetgroups; we wrap it once more to look up by uid instead of name.

* bootstrap.conf (gnulib_modules): Add mgetgroups.
* src/util/virutil.h (virGetGroupList): New declaration.
* src/util/virutil.c (virGetGroupList): New function.
* src/libvirt_private.syms (virutil.h): Export it.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-07-11 15:25:53 -06:00
Daniel P. Berrange
34d63dd750 Include GNULIB mkdtemp module
The mkdtemp function is missing on mingw platforms. It is
used in various Linux specific places in libvirt, but
recently became used in fdstreamtest.c which is cross
platform. Thus the GNULIB mkdtemp module should be used
to provide mkdtemp.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-05-17 17:09:29 +01:00
Eric Blake
c51c3e45d5 build: more mingw fixes
More mingw build failures:

  CCLD     libvirt-lxc.la
/usr/lib64/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/bin/ld: cannot find libvirt_lxc.def: No such file or directory

  CC       virportallocatortest-virportallocatortest.o
../../tests/virportallocatortest.c: In function 'main':
../../tests/virportallocatortest.c:195:1: error: implicit declaration of function 'setenv' [-Werror=implicit-function-declaration]

* src/Makefile.am (GENERATED_SYM_FILES): Also generate
libvirt_lxc.def.
* bootstrap.conf (gnulib_modules): Import setenv.
2013-02-15 15:45:52 -07:00
Eric Blake
83aca30f1e build: use autobuild module to make build logs nicer
A recent build failure made me realize that we could usefully add
a bit more information to configure output, for aid in analysis of
failed builds.  Pulling in the autobuild module merely adds these
four lines to configure output:

configure: autobuild project... libvirt
configure: autobuild revision... v1.0.1-113-g7a74eea
configure: autobuild hostname... myhost
configure: autobuild timestamp... 20130102T233543Z

which can be useful even if not using the Autobuild project to parse
build logs.

* bootstrap.conf (gnulib_modules): Add autobuild.
* configure.ac: Favor git version over release version, when available.
2013-01-02 16:43:58 -07:00
Daniel P. Berrange
f14fdae368 Add ability to maintain disk leases indirectly
The default lockd driver behavour is to acquire leases
directly on the disk files. This introduces an alternative
mode, where leases are acquire indirectly on a file that
is based on a SHA256 hash of the disk filename.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-13 15:26:57 +00:00
Eric Blake
4dbd6e9654 build: prefer mkostemp for multi-thread safety
https://bugzilla.redhat.com/show_bug.cgi?id=871756

Commit cd1e8d1 assumed that systems new enough to have journald
also have mkostemp; but this is not true for uclibc.

For that matter, use of mkstemp[s] is unsafe in a multi-threaded
program.  We should prefer mkostemp[s] in the first place.

* bootstrap.conf (gnulib_modules): Add mkostemp, mkostemps; drop
mkstemp and mkstemps.
* cfg.mk (sc_prohibit_mkstemp): New syntax check.
* tools/virsh.c (vshEditWriteToTempFile): Adjust caller.
* src/qemu/qemu_driver.c (qemuDomainScreenshot)
(qemudDomainMemoryPeek): Likewise.
* src/secret/secret_driver.c (replaceFile): Likewise.
* src/vbox/vbox_tmpl.c (vboxDomainScreenshot): Likewise.
2012-10-31 10:06:10 -06:00
Cole Robinson
7b21981cdb Autogenerate AUTHORS
AUTHORS.in tracks the maintainers, as well as some folks who were
previously in AUTHORS but don't have a git commit with proper
attribution.

Generated output is sorted alphabetically and lacks pretty spacing, so
tweak AUTHORS.in to follow the same format.

Additionally, drop the syntax-check rule that previously validated
AUTHORS against git log.
2012-10-19 12:44:56 -04:00
Eric Blake
4ecb723b9e maint: fix up copyright notice inconsistencies
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/
2012-09-20 16:30:55 -06:00
Eric Blake
4bba6579cc build: avoid non-portable byte-swapping
Commit 0fc89098 used functions only available on glibc, completely
botched 32-bit environments, and risked SIGBUS due to unaligned
memory access on platforms that aren't as forgiving as x86_64.

* bootstrap.conf (gnulib_modules): Import ffsl.
* src/util/bitmap.c (includes): Use <strings.h> for ffsl.
(virBitmapNewData, virBitmapToData): Avoid 64-bit assumptions and
non-portable functions.
2012-09-18 13:53:15 -06:00
Eric Blake
ccaf0beec8 build: improved handling of <execinfo.h>, BSD <net/if.h>
FreeBSD and OpenBSD have a <net/if.h> that is not self-contained;
and mingw lacks the header altogether.  But gnulib has just taken
care of that for us, so we might as well simplify our code.  In
the process, I got a syntax-check failure if we don't also take
the gnulib execinfo module.

* .gnulib: Update to latest, for execinfo and net_if.
* bootstrap.conf (gnulib_modules): Add execinfo and net_if modules.
* configure.ac: Let gnulib check for headers.  Simplify check for
'struct ifreq', while also including enough prereq headers.
* src/internal.h (IF_NAMESIZE): Drop, now that gnulib guarantees it.
* src/nwfilter/nwfilter_learnipaddr.h: Use correct header for
IF_NAMESIZE.
* src/util/virnetdev.c (includes): Assume <net/if.h> exists.
* src/util/virnetdevbridge.c (includes): Likewise.
* src/util/virnetdevtap.c (includes): Likewise.
* src/util/logging.c (includes): Assume <execinfo.h> exists.
(virLogStackTraceToFd): Handle gnulib's fallback implementation.
2012-09-06 10:08:47 -06:00
Eric Blake
d74e5a4dfc build: use correct libraries for clock_gettime
On OpenBSD, clock_gettime() exists in libc rather than librt, and
blindly linking with -lrt made the build fail.  Gnulib already
did the work for determining which libraries to use, so we should
reuse that work rather than doing it ourselves.

* bootstrap.conf (gnulib_modules): Pull in clock-time.
* configure.ac (RT_LIBS): Drop.
* src/Makefile.am (libvirt_util_la_LIBADD): Use gnulib variable
instead.
* src/util/virtime.c (includes): Simplify.
2012-09-04 10:57:25 -06:00
Eric Blake
c606671aaa random: link with -lm when needed
Use of ldexp() requires -lm on some platforms; use gnulib to determine
this for our makefile.  Also, optimize virRandomInt() for the case
of a power-of-two limit (actually rather common, given that Daniel
has a pending patch to replace virRandomBits(10) with code that will
default to virRandomInt(1024) on default SELinux settings).

* .gnulib: Update to latest, for ldexp.
* bootstrap.conf (gnulib_modules): Import ldexp.
* src/Makefile.am (libvirt_util_la_CFLAGS): Link with -lm when
needed.
* src/util/virrandom.c (virRandomInt): Optimize powers of 2.
2012-08-14 15:33:10 -06:00
Martin Kletzander
43bfa23e6f json: fix interface locale dependency
libvirt creates invalid commands if wrong locale is selected. For
example with locale that uses comma as a decimal point, JSON commands
created with decimal numbers are invalid because comma separates the
entries in JSON. Fortunately even when decimal point is affected,
thousands grouping is not, because for grouping to be enabled with
*printf, there has to be an apostrophe flag specified (and supported).

This patch adds specific internal function for converting doubles to
strings with C locale.
2012-08-14 07:30:14 +02:00
Hendrik Schwartke
7383c1d762 Added timestamps to storage volumes
The access, birth, modification and change times are added to
storage volumes and corresponding xml representations.  This
shows up in the XML in this format:

<timestamps>
  <atime>1341933637.027319099</atime>
  <mtime>1341933637.027319099</mtime>
</timestamps>

Signed-off-by: Eric Blake <eblake@redhat.com>
2012-08-02 17:14:17 -06:00
Eric Blake
3ad13c92a7 maint: avoid regression on copyright listings
Commit f9ce7dad6 tried to kill uses of a raw street address, but
missed a few instances.  Automate things so we don't introduce
new problems in the future.

* cfg.mk (sc_copyright_address): New rule.
(exclude_file_name_regexp--sc_copyright_address): Add exemption.
* bootstrap.conf: Adjust offenders.
* build-aux/augeas-gentest.pl: Likewise.
* examples/systemtap/events.stp: Likewise.
* examples/systemtap/qemu-monitor.stp: Likewise.
* examples/systemtap/rpc-monitor.stp: Likewise.
* src/dtrace2systemtap.pl: Likewise.
* src/esx/esx_vi_generator.py: Likewise.
* src/hyperv/hyperv_wmi_generator.py: Likewise.
* src/remote/qemu_protocol.x: Likewise.
* src/remote/remote_protocol.x: Likewise.
* src/rpc/gensystemtap.pl: Likewise.
* src/rpc/virnetprotocol.x: Likewise.
* tests/object-locking.ml: Likewise.
* tools/virt-xml-validate.in: Likewise.
2012-07-27 07:42:34 -06:00
Eric Blake
f12e139621 build: update to latest gnulib, for secure tarball
Pick up some build fixes in the latest gnulib.  In particular,
we want to ensure that official tarballs are secure, but don't
want to penalize people who don't run 'make dist', since fixed
automake still hasn't hit common platforms like Fedora 17.

* .gnulib: Update to latest, for Automake CVE-2012-3386 detection.
* bootstrap: Resync from gnulib.
* bootstrap.conf (gnulib_extra_files): Drop missing, since gnulib
has dropped it in favor of Automake's version.
* cfg.mk (local-checks-to-skip): Conditionally skip the security
check in cases where it doesn't matter.
2012-07-26 07:50:59 -06:00
Eric Blake
e925ea3156 build: update to latest gnulib
Gnulib finally relaxed the isatty license, needed as first mentioned here:
https://www.redhat.com/archives/libvir-list/2012-February/msg01022.html

Other improvements include better syntax-check rules (we can delete one
of ours now that it is a duplicate) and better compiler warning usage.

* .gnulib: Update to latest, for isatty.
* cfg.mk (sc_prohibit_strncpy): Drop a now-redundant rule.
* bootstrap.conf (gnulib_modules): Add isatty.
* bootstrap: Resync from gnulib.
2012-05-29 08:43:55 -06:00
Eric Blake
bae13129c1 build: fix bootstrap on RHEL
Commit 8fe455fd36 tried to work around
a regression introduced in upstream gnulib that requires gettext 0.18
or newer on all projects using bootstrap, by making libvirt require
gettext 0.18.  But this fails on RHEL 6.2, which still ships gettext
0.17.  Revert that change, and instead, import the latest round of
gnulib updates that fix that problem properly.

If you have already built in the window where libvirt required 0.18,
be aware that incremental updates may run into problems: this is
because 'autopoint --force' will not downgrade m4/po.m4 back to an
older version, but it must be downgraded back to 0.17 levels to work
with this patch.  You may either manually remove that file then rerun
bootstrap, or it may prove easier to just clean up all non-git files
to start from a clean slate.

* bootstrap.conf: Revert minimum gettext back to 0.17.
* configure.ac: Likewise.
* .gnulib: Update to latest, for bootstrap fixes.
* bootstrap: Resync from gnulib.
2012-04-25 16:25:49 -06:00
Peter Krempa
8fe455fd36 build: Fix version of gettext macros
Commit c9cd419cab added copying of the
makefile for translation files from gnulib. The makefile from gnulib is
of version 0.18 but the build configuration cretes macros from version
0.17 which breaks the build with message:

*** error: gettext infrastructure mismatch: using a Makefile.in.in from
gettext version 0.18 but the autoconf macros are from gettext version
0.17
2012-04-24 11:35:09 +02:00
Daniel P. Berrange
f94d9c5793 Pull in GNULIB regex module for benefit of test suite on Win32 2012-04-04 14:33:27 +01:00
Eric Blake
25fb4c65a5 build: drop a painfully long gnulib test
On machines with massive amounts of CPUs, the gnulib 'test-lock'
could take minutes, or even appear to deadlock, because of poor
scaling of timing interactions between multiple cores.

See https://bugzilla.redhat.com/show_bug.cgi?id=797284.
For precedence, note that iwhd has done the same:
https://lists.gnu.org/archive/html/bug-gnulib/2012-01/msg00311.html

We can re-enable things if gnulib ever analyzes and improves the
situation.

* bootstrap.conf (gnulib_tool_option_extras): Avoid lock-tests.
2012-03-21 11:12:30 -06:00
Daniel P. Berrange
72b4139700 Replace hashing algorithm with murmurhash
Recent discussions have illustrated the potential for DOS attacks
with the hash table implementations used by most languages and
libraries.

   https://lwn.net/Articles/474912/

libvirt has an internal hash table impl, and uses hash tables for
a variety of purposes. The hash key generation code is pretty
simple and thus not strongly collision resistant.

This patch replaces the current libvirt hash key generator with
the (public domain) Murmurhash3 code. In addition every hash
table now gets a random seed value which is used to perturb the
hashing code. This should make it impossible to mount any
practical attack against libvirt hashing code.

* bootstrap.conf: Import bitrotate module
* src/Makefile.am: Add virhashcode.[ch]
* src/util/util.c: Make virRandom() return a fixed 32 bit
  integer value.
* src/util/hash.c, src/util/hash.h, src/util/cgroup.c: Replace
  hash code generation with a call to virHashCodeGen()
* src/util/virhashcode.h, src/util/virhashcode.c: Add a new
  virHashCodeGen() API using the Murmurhash3 algorithm.
2012-01-26 14:18:53 +00:00
Eric Blake
29db7a0072 build: update to latest gnulib
Pick up recent gnulib improvements.

* .gnulib: Update to latest.
* bootstrap: Resync.
* bootstrap.conf (gnulib_tool_option_extras): Adjust to bootstrap
changes.
* gnulib/lib/Makefile.am: Likewise.
2012-01-12 15:47:54 -07:00
Eric Blake
f48ab7d888 maint: allow bootstrap in a sandbox
Jiri Denemark reported an instance of bootstrapping libvirt
failing when run inside a sandbox, traced to rpm trying to
access /var/ which was not permitted by the sandbox.

Alex Jia reported that 0.9.8-rc1 failed to bootstrap if patch(1)
is not installed.

* bootstrap.conf (buildreq): Avoid rpm call if python-config
exists.  Also, require patch, in case we have gnulib-local diffs.
2011-12-08 14:37:15 -07:00
Eric Blake
2b094d56b5 build: require more tools from maintainers
We want our tarballs to be complete - this means that any
generated file that gets shipped as part of the tarball so that
ordinary users don't have to rebuild it must be something
that the maintainer can generate.  There have been various
reports of random build failures when using libvirt.git
instead of a tarball, and often it is due to missing a
maintainer-specific tool to produce one of these generated
files.  This patch raises the bar for what you must have
installed to build libvirt.git, but does not impact what
you can get away with for building tarballs.

Note: It still remains possible to do a successful 'make dist'
without these tools, when starting from a release tarball.

* bootstrap.conf (buildreq): Add tools that maintainers need for a
successful 'make dist' from a fresh git checkout.
2011-12-03 15:55:46 -07:00
Eric Blake
676fdf8cb5 build: allow for local gnulib diffs
Commit f7bd00c12 pulled in a gnulib module that fails to compile
on mingw.  While it would be nice to pull in a newer version of
.gnulib that fixes this, it is difficult to backport any .gnulib
update to older releases.  So, it makes sense to take advantage
of gnulib-tool's ability to support local diffs, where we can
apply specific diffs in our use of gnulib without waiting for
upstream gnulib to pick up those changes, as well as avoiding
a wholesale .gnulib update.  The existence of local diffs will
also make it easier to backport fixes against a tarball (as long
as a tarball and libvirt.git share the same .gnulib commit, then
the tarball can be patched by applying the same local diffs as
a post-release libvirt.git commit, without having to rerun an
entire gnulib-tool bootstrap).

This patch introduces the framework for supporting local diffs,
without actually introducing any.

* bootstrap.conf (local_gl_dir): New variable.
* autogen.sh (bootstrap_hash): Hash any local diffs, to force a
re-bootstrap if just diffs change.
* cfg.mk (_update_required): Likewise.
2011-11-09 09:03:33 -07:00
Eric Blake
f7bd00c12c build: fix build on platforms without ptsname_r
MacOS lacks ptsname_r, and gnulib doesn't (yet) provide it.
But we can avoid it altogether, by using gnulib openpty()
instead.  Note that we do _not_ want the pt_chown module;
gnulib uses it only to implement a replacement openpty() if
the system lacks both openpty() and granpt(), but all
systems that we currently port to either have at least one of
openpty() and/or grantpt(), or lack ptys altogether.  That is,
we aren't porting to any system that requires us to deal with
the hassle of installing a setuid pt_chown helper just to use
gnulib's ability to provide openpty() on obscure platforms.

* .gnulib: Update to latest, for openpty fixes
* bootstrap.conf (gnulib_modules): Add openpty, ttyname_r.
(gnulib_tool_option_extras): Exclude pt_chown module.
* src/util/util.c (virFileOpenTty): Rewrite in terms of openpty
and ttyname_r.
* src/util/util.h (virFileOpenTtyAt): Delete dead prototype.
2011-11-07 09:34:02 -07:00
Eric Blake
9cf70dad0f build: use gnulib fdatasync
Commit 1726a73 hacked around MacOS' lack of fdatasync, since
gnulib did not have it at the time.  But now that we use newer
gnulib, we can avoid the hack.

* bootstrap.conf (gnulib_modules): Add fdatasync.
* configure.ac (AC_CHECK_FUNCS_ONCE): Drop our own check.
2011-10-25 09:48:34 -06:00
Eric Blake
1726a736fb build: work around lack of MacOS fdatasync
Mingw lacks fsync, but gnulib provides that.  Meanwhile, gnulib does
not (yet) provide fdatasync, so this is a quick hack to fake that
function on MacOS X; we can revert this configure change once gnulib
gives us a real module.

We have been implicitly relying on gnulib's largefile module being
pulled in by other modules, but it's better to make that explicit.

* bootstrap.conf (gnulib_modules): Add fsync.  Make largefile use
explicit.
* configure.ac (AC_CHECK_FUNCS_ONCE): Check for fdatasync, and
fake it with fsync when not present.
2011-09-16 17:42:28 -06:00
Daniel P. Berrange
f4287c7676 Add API for duplicating a socket/client file descriptor
* src/rpc/virnetsocket.c, src/rpc/virnetsocket.h: Add
  virNetSocketDupFD()
* src/rpc/virnetclient.c, src/rpc/virnetclient.h: Add
  virNetClientDupFD() and virNetClientGetFD()
2011-08-15 15:21:26 +02:00
Matthias Bolte
b590866bdb freebsd: Fix build problem due to picking up the wrong libvirt.h
Gettext annoyingly modifies CPPFLAGS in-place, putting
-I/usr/local/include into the search patch if libintl headers
must be used from that location.  But since we must support
automake 1.9.6 which lacks AM_CPPFLAGS, and since CPPFLAGS is used
prior to INCLUDES, this means that the build picks up the _old_
installed libvirt.h in priority to the in-tree version, leading
to all sorts of weird build failures on FreeBSD.

Fix this by teaching configure to undo gettext's actions, but
to keep any changes required by gettext at the end of INCLUDES
after all in-tree locations are used first.  Also requires
adding a wrapper Makefile.am and making gnulib-tool create
just gnulib.mk files during the bootstrap process.

Signed-off-by: Eric Blake <eblake@redhat.com>
2011-07-29 07:35:54 -06:00
Matthias Bolte
c6a4c375fb freebsd: Add gnulib environ module for the commandtest 2011-07-28 15:45:37 +02:00
Eric Blake
1c93fbbbe7 build: support warnings on RHEL 5
Without this, a configure built by autoconf 2.59 was broken when
trying to detect which compiler warning flags were supported.

* .gnulib: Update to latest, for warnings.m4 fix.
* bootstrap.conf: Add fclose explicitly, to match recent gnulib
implicit dependency changes.
* src/qemu/qemu_conf.c (includes): Drop unused include.
* src/uml/uml_conf.c (include): Likewise.
Reported by Daniel P. Berrange.
2011-07-27 07:31:38 -06:00