AC_C_BIGENDIAN can return 'universal' as the result in the case that we
are trying to do a universal build on Mac OS. This has to be opted into
explicitly by using multiple -arch CFLAGS.
Previously, we detected this result and fell back to doing our own check
based on the endianness of the build machine, hardcoding that. This
means that universal builds might successfully build, but the binaries
would never actually run correctly on the 'opposite' arch.
This check was added because of a bug in the intial implementation of
this detection in autoconf, which was inappropriately identifying
non-macos compilers as 'universal'. That was hitting ppc64 systems.
See https://bugzilla.redhat.com/show_bug.cgi?id=449944 for more info.
Commit b0e687ef42e21b1eb7af18c4eaebcd41b0bd5632 in autoconf ("Limit
AC_C_BIGENDIAN univeral checks to Mac OS X") solved this issue in 2008,
so let's remove our workaround. For good measure, if we detect
"universal" in the result, error out.
https://bugzilla.gnome.org/show_bug.cgi?id=742548
Allows sending of multiple messages (packets, datagrams)
in one go using sendmmsg(), thus drastically reducing the
number of syscalls when sending out a lot of data, or when
sending out the same data to multiple recipients.
https://bugzilla.gnome.org/show_bug.cgi?id=719646
We were using AC_LANG_PROGRAM to build a program to test for our ability
to call syscall (__NR_futex, ...);. This macro adds "main () { ... }"
around the provided code segment automatically. The provided code
segment provided its own main() function, however.
The result looked something like:
int main (void) {
int main (void) {
...
}
}
which worked on GCC, but not on clang.
Let's fix that. Let's fix the same mistake copied over for eventfd()
detection while we're at it.
Like the Visual Studio 2012 project files, the Visual Studio 2013 files are
largely the same as the Visual Studio 2010 project files, so support
Visual Studio 2013 by updating the autotools scripts that is used for
Visual Studio 2012. This means that project files for Visual Studio 2012
and Visual Studio 2013 can be maintained by simply maintaining the Visual
Studio 2010 project files, adding minimal maintenance overhead.
On OpenBSD, libintl is installed under /usr/local/lib. When configure
checks unset LDFLAGS, LIBS should also be unset otherwise we end up with
-lintl which cannot be found resulting to the compile check to fail.
https://bugzilla.gnome.org/show_bug.cgi?id=727939
Since the type system does not support reloading its data and assumes
that libgobject remains loaded for the lifetime of the process, we
should link libgobject with a flag indicating that it can't be unloaded.
https://bugzilla.gnome.org/show_bug.cgi?id=707298
We've had a relatively rocky path with g_cond_wait_until() on systems
that either don't support pthread_condattr_setclock() or where
g_get_monotonic_time() is not based on CLOCK_MONOTONIC (ie: Android and
Mac OS).
Fortunately, both of these platforms seem to share
pthread_cond_timedwait_relative_np() which allows us to implement
g_cond_wait_until() without races.
With this patch, we now require that one of pthread_condattr_setclock()
or pthread_cond_timedwait_relative_np() exists. A quick look around
suggests that this is true for all platforms that we care about.
This patch removes our use of pthread_cond_timedwait_monotonic() and
pthread_cond_timedwait_monotonic_np() which were Android-only APIs.
https://bugzilla.gnome.org/show_bug.cgi?id=673607
We now assume the existence of clock_gettime() and CLOCK_MONOTONIC as
specified by POSIX.1-2001. This means that we always return truly
monotonic time, which will prevent problems in the case that the user
changes the time.
Mac OS doesn't have clock_gettime() but it does have
mach_absolute_time(), so we can use that there.
We keep our Windows case as well (although we should simplify it once XP
hits EOL later this year).
This patch removes the fallback to gettimeofday() in case of missing
clock_gettime(). We no longer have any way to test this codepath and
therefore it must go.
This patch also restructures the #ifdef a bit so that we repeat the
entire function definition inside of #ifdef instead of just the entire
body of one function.
https://bugzilla.gnome.org/show_bug.cgi?id=724687
Our check for inotify_init1() being defined is broken. We happily
declare that inotify is supported, even if the check fails.
This was originally intended to check for inotify_init1 in the libc so
that we could fall back to inotify_init if it was not yet defined.
FreeBSD has a libinotify that emulates the inotify API via kqueue. It
installs a <sys/inotify.h> header and requires linking to -linotify. We
don't want to falsely detect working inotify in this case.
Treat the lack of inotify_init1() in the libc as a lack of inotify
support. This requires only a new libc -- we still support old kernels:
in the case that inotify1_init() fails, we fall back to inotify_init().
https://bugzilla.gnome.org/show_bug.cgi?id=724330
When the function in the test program is inlined, all bets are
off whether the detection will work correctly or not. Make it
harder for the compiler to play games on us by making the
function recursive.
https://bugzilla.gnome.org/show_bug.cgi?id=307947
In Windows development environments that have it, <unistd.h> is mostly
just a wrapper around several other native headers (in particular,
<io.h>, which contains read(), close(), etc, and <process.h>, which
contains getpid()). But given that some Windows dev environments don't
have <unistd.h>, everything that uses those functions on Windows
already needed to include the correct Windows header as well, and so
there is never any point to including <unistd.h> on Windows.
Also, remove some <unistd.h> includes (and a few others) that were
unnecessary even on unix.
https://bugzilla.gnome.org/show_bug.cgi?id=710519
Assume unix platforms support the original POSIX.1 standard.
Specifically, assume that if G_OS_UNIX, then we have chown(),
getcwd(), getgrgid(), getpwuid(), link(), <grp.h>, <pwd.h>,
<sys/types.h>, <sys/uio.h>, <sys/wait.h>, and <unistd.h>.
Additionally, since all versions of Windows that we care about also
have <sys/types.h>, we can remove HAVE_SYS_TYPES_H checks everywhere.
Also remove one include of <sys/times.h>, and the corresponding
configure check, since the include is not currently needed (and may
always have just been a typo for <sys/time.h>).
https://bugzilla.gnome.org/show_bug.cgi?id=710519
Assume all supported platforms implement C90, and therefore they
(correctly) implement atexit(), memmove(), setlocale(), strerror(),
and vprintf(), and have <float.h> and <limits.h>.
(Also remove the configure check testing that "do ... while (0)" works
correctly; the non-do/while-based version of G_STMT_START and
G_STMT_END was removed years ago, but the check remained. Also, remove
some checks that configure.ac claimed were needed for libcharset, but
aren't actually used.)
Note that removing the g_memmove() function is not an ABI break even
on systems where g_memmove() was previously not a macro, because it
was never marked GLIB_AVAILABLE_IN_ALL or listed in glib.symbols, so
it would have been glib-internal since 2004.
https://bugzilla.gnome.org/show_bug.cgi?id=710519
Remove workarounds for NeXTStep (last released in 1995), SunOS (1994),
HP-UX 9.x (1992) and 10.x (1995), OSF/1 / Digital UNIX / Tru64 UNIX
4.x (1999), and AIX 4.x (1999).
HP-UX 11 implements dlopen(), so dropping support for earlier versions
also lets us remove the HP-UX-specific gmodule-dld.
https://bugzilla.gnome.org/show_bug.cgi?id=710519
Since the initial addition of BeOS support in 1999, there has only
been one update to it (in 2005, and it wasn't even very big). GLib is
known to not currently build on Haiku (or presumably actual BeOS)
without additional patching, and the fact that there isn't a single
G_OS_BEOS check in gio/ is suspicious.
Additionally, other than the GModule implementation, all of the
existing G_OS_BEOS checks are either (a) "G_OS_UNIX || G_OS_BEOS", or
(b) random minor POSIXy tweaks (include this header file rather than
that one, etc), suggesting that if we were going to support Haiku, it
would probably be simpler to treat it as a special kind of G_OS_UNIX
(as we do with Mac OS X) rather than as its own completely different
thing.
So, kill G_OS_BEOS.
https://bugzilla.gnome.org/show_bug.cgi?id=710519
AC_TRY_LINK should be used instead of AC_TRY_COMPILE because the code
will compile everywhere, either producing ``atomic'' code, or an
external reference to __sync_bool_compare_and_swap.
https://bugzilla.gnome.org/show_bug.cgi?id=706958
This was introduced for Solaris performance theoretically;
we have never been able to use it on Linux/glibc because
the UTF-16 BOM state isn't reset.
We have no data about Solaris performance; were some to
still exist, we could reintroduce the code with an explicit
check for Solaris, not a check for glibc.
https://bugzilla.gnome.org/show_bug.cgi?id=704999
...instead of detecting glibc and using _GNU_SOURCE manually. This
should fix the build when using glibc-emulating libraries; we can
defer portability work to autoconf.
https://bugzilla.gnome.org/show_bug.cgi?id=684123
Otherwise we have to rely on pthread_cond_timedwait() actually using
the monotonic clock, which might be true or not. On Android at least
it is using the realtime clock, no pthread_condattr_setclock() is available
but instead pthread_cond_timedwait_monotonic() can be used.
OS X's getaddrinfo() only supports IPv6 scope IDs that are interface
names, not numbers. So use if_indextoname() to get the name of an
interface and construct an address using that.
https://bugzilla.gnome.org/show_bug.cgi?id=700123
Extents-based filesystems like knowing in advance how much data will be
written to a file in order to prevent fragmentation. If we have it, use
posix_fallocate() before writing data in g_file_set_contents().
https://bugzilla.gnome.org/show_bug.cgi?id=701560
Perform a substantial cleanup of the build system with respect to
building and installing testcases.
First, Makefile.decl has been renamed glib.mk and substantially
expanded. We intend to add more stuff here in the future, like canned
rules for mkenums, marshallers, resources, etc.
By default, tests are no longer compiled as part of 'make'. They will
be built when 'make check' is run. The old behaviour can be obtained
with --enable-always-build-tests.
--disable-modular-tests is gone (because tests are no longer built by
default). There is no longer any way to cause 'make check' to be a
no-op, but that's not very useful anyway.
A new glibtests.m4 file is introduced. Along with glib.mk, this
provides for consistent handling of --enable-installed-tests and
--enable-always-build-tests (mentioned above).
Port our various test-installing Makefiles to the new framework.
This patch substantially improves the situation in the toplevel tests/
directory. Things are now somewhat under control there. There were
some tests being built that weren't even being run and we run those now.
The long-running GObject performance tests in this directory have been
removed from 'make check' because they take too long.
As an experiment, 'make check' now runs the testcases on win32 builds,
by default. We can't run them under gtester (since it uses a pipe to
communicate with the subprocess) so just toss them in TESTS. Most of
them are passing on win32.
Things are not quite done here, but this patch is already a substantial
improvement. More to come.
See https://live.gnome.org/GnomeGoals/InstalledTests for more
information.
The tests now support being run both uninstalled and installed, so
'make check' works for those who want it. For tests which need data
files, the way this works is they look in the compiled in value of
SRCDIR by default, and the generated tests use "env G_TEST_DATA=" to
override that.
This patch only converts glib/tests for now; if this patch looks good,
I'll do the rest of the tests.
https://bugzilla.gnome.org/show_bug.cgi?id=699079
This ancient code was attempting to cope with (unknown) systems whose
malloc() prototype was incompatible with the standard. This test was
fragile; it would break if the build environment provided -Wall in
CFLAGS.
Now that it's 2013, let's assume that target systems have a sane
malloc(). If someone complains, we can revisit this.
https://bugzilla.gnome.org/698716
Some (broken) toolchains for example trip up
-Werror=missing-prototypes in system headers. This patch allows
people to skip the formerly hardcoded "baseline" warnings.
https://bugzilla.gnome.org/show_bug.cgi?id=694757
Some compilers have support for atomic operations, but do not
define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4. Instead of checking
for this define, we check for __sync_bool_compare_and_swap and
define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 if the compiler doesn't
define it.
https://bugzilla.gnome.org/show_bug.cgi?id=682818
gio's glib-mkenums call needs to get gnetworking.h out of $(builddir),
not $(srcdir). Fix/simplify it by using $(filter) on $^ and letting
make find everything.
Also add -Wno-portability to AM_INIT_AUTOMAKE in configure.ac, so that
it doesn't warn about this (or about the gmake-specific features we
were already using in gio/tests/)
https://bugzilla.gnome.org/show_bug.cgi?id=691866
We only want to control the default visibility for our five main
installable libraries: libglib, libgthread, libgmodule, libgobject,
libgio. We should therefore only set -fvisibility=hidden when building
those.
Use a separate substitution variable for this purpose.
Using CFLAGS directly leads to some modules built in testcases not
exporting their symbols (and then the tests fail). It also affects the
fam file monitoring module.
Colin had originally done it this way in his visibility patch series but
I failed to understand why so I didn't copy it. Now I do.
Also: revert changes made to two testcases in an attempt to work around
this issue.
https://bugzilla.gnome.org/show_bug.cgi?id=691756
Check for -fvisibility=hidden as a supported CFLAG.
If it is supported, use it and emit an AC_DEFINE to change the meaning
of _GLIB_EXTERN to include the GNU attribute for marking symbols as
public: __attribute((visibility("default"))).
This will override the public definition of _GLIB_EXTERN for any file
which does #include "config.h" (forcing all our .c files to do so, as a
side effect).
If we're on mingw, assume that -fvisibility will work and also throw in
a __declspec(dllexport) for good measure. This will allow us to move
away from using a .def file to create the the various DLLs.
It's possible that there may be compilers that accept
-fvisibility=hidden but don't accept the GNU attribute for making
symbols public again -- we will hopefully receive bugs if any of those
exist.
https://bugzilla.gnome.org/show_bug.cgi?id=688681
The attached patch adds support for the btrfs "clone" ioctl which
makes Copy-on-Write reflinks, resulting in cheap O(1) copies when
source/destination are on the same filesystem. The ioctl itself is
quite straightforward, and GNU coreutils has had support since 7.5
(--reflink=auto --sparse=auto).
The ioctl only operates on regular files and symlinks, and always
follows symlinks; checks have been added accordingly.
This patch would be very useful for everyone who uses btrfs
filesystems (Meego folks for instance). On systems that don't have
btrfs, or if the the source is not on a btrfs filesystem, the ioctl
returns EINVAL, and the fallback code is triggered. Hence this will
cause no problems for non-btrfs users.
https://bugzilla.gnome.org/show_bug.cgi?id=626497
