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```
[107/1793] Compiling c object 'src/basic/basic@sta/log.c.o'
In file included from ../src/basic/log.c:44:0:
../src/basic/missing.h:762:6: warning: "HAVE_DECL_IFLA_GENEVE_LABEL" is not defined, evaluates to 0 [-Wundef]
^~~~~~~~~~~~~~~~~~~~~~~~~~~
[108/1793] Compiling c object 'src/basic/basic@sta/path-util.c.o'
In file included from ../src/basic/path-util.c:40:0:
../src/basic/missing.h:762:6: warning: "HAVE_DECL_IFLA_GENEVE_LABEL" is not defined, evaluates to 0 [-Wundef]
^~~~~~~~~~~~~~~~~~~~~~~~~~~
```
Previous checks did nothing, because cc.has_argument only does compilation,
without any linking. Unfortunately cc.links() cannot be used, because it does
not accept any options. Providing the test file as a static source is easiest,
even if not every elegant.
https://github.com/mesonbuild/meson/issues/1676
Various distros split udev and its helpers into a separate binary
package. In case of Debian this also includes systemd-hwdb.
In Debian, the udev package is not supposed to depend on systemd, so a
dependency on libsystemd-shared.so is not desired. Allow the
systemd-hwdb binary to be linked statically if link-udev-shared is set
to false.
Follow-up for 3a30f21ff8.
Also detect libgpg-error. Require both to be present for HAVE_CRYPT,
even though libgpg-error is only used in src/resolve. If one is available,
the other should be too, so it doesn't seem worth the trouble to make two
separate conditions.
This fixes ldsdir detection under Debian.
v2:
- define gnu_efi_arch for the arch efi include directory name
In the autotools naming convention, efi_arch and this directory always had
the same name. But meson.cpu_family() uses a slightly different convention,
so those two don't always match.
I used strings.h because that's what explicit_bzero(3) says. But glibc defines
it in string.h. There are no other available implementations atm (musl does not
define it, bionic aliases it to memset in openbsd-compat.h, yikes). We also
include just string.h from the code. So just look for the function in string.h,
and if it ever appears in other places, we can change the detection and includes.
The indentation for emacs'es meson-mode is added .dir-locals.
All files are reindented automatically, using the lasest meson-mode from git.
Indentation should now be fairly consistent.
This makes the helper binaries significantly bigger (in some cases, the final
size depends on link options and optimization level), and is only useful for
distributions which want to provide the option to install udev without systemd.
As the linking is improved, the difference between the columns might shrink,
but it's unlikely that linking libshared statically could ever be more
efficient.
E.g. with -O0, no -flto:
(static) (shared)
src/udev/ata_id 999176 85696
src/udev/cdrom_id 1024344 111656
src/udev/collect 990344 81280
src/udev/scsi_id 1023592 115656
src/udev/v4l_id 811736 17744
When linked dynamically, install_rpath must be specified, so add that.
This allow test-efi-disk.img to be created under meson.
The invocation of qemu is not converted yet, in particular because the
command-line used in Makefile.am is outdated.
This is more-or-less the same as dist-check-includes. meson doesn't exactly
make it easy to call a compiler with a custom set of options. The tests
are included in the test listing.
test-dlopen is a very simple binary that is only linked with libc and
libdl. From it we do dlopen() on the nss and pam modules to check that they are
linked to all necessary libs.
(meson-compiled nss modules are linked to less libraries, for whatever reason.
I suspected that some deps are missing, but it turns out that my suspicions
weren't justified, and the modules load just fine. Let's keep the test though,
it is very quick, and might detect missing linkage in the future.)
This simplifies things and leads to a smaller installation footprint.
libsystemd_internal and libsystemd_journal_internal are linked into
libystemd-shared and available to all programs linked to libsystemd-shared.
libsystemd_journal_internal is not needed anymore, and libsystemd-shared
is used everwhere. The few exceptions are: libsystemd.so, test-engine,
test-bus-error, and various loadable modules.
This doesn't feel as natural, but is more consistent with the boolean options
which require true/false, and allows setting of options without knowing of
which type the option is.
This is a very straightforward conversion of the rules in Makefile.am.
Generated objects (on arm64) are identical.
The only difference in executed commands is that automake uses ld -m
elf_x86_64, without us specifying the -m option anywhere. I suspect that
using the default for the given linker should be OK, so it's fine to just
skip it.
The tests are included under the conditional too, instead of specifying
'ENABLE_NETWORKD' in the test definition array, because libnetworkd_core
dependency is undefined if networkd is disabled.
This implementation assumes that the arguments in compiler.cmd_array()
don't contain any spaces. Since we are only interested in compilation
on Linux, I think this is a safe assumption.
Solution suggested by Nirbheek Chauhan.
(i.e. pretty much all of them). libtools does this automatically for us. It
would be great if meson did too. Otherwise, it would be nice to simply attach
the information about necessary rpath to the library object, and have it used
automatically for all users. Dunno, maybe there's already a way to do this.
I used '$ORIGIN' for stuff installed into libexecdir, since that's where
libshared ends up, and a full path for everything else. The advantage of
using $ORIGIN is that those binaries can be started from $DESTDIR, which can
sometimes be useful.
