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116 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
b2fc5836b2 meson: specify rpath on all executables linking to libshared
(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.
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
ef0221bc95 meson: link test-lib{systemd,udev}-sym in the usual way
I tried to link to the right library by hand, because without
mesonbuid/meson#1545, libbasic.a is added to the link arguments. We want to
link the test with nothing but the library being tested. Doing the linking by
hand did achieve that, but it caused a bigger issue: meson didn't know about
the dependency on the library. And the dependency cannot be added using
link_depends, because "link_depends arguments must be strings...", and this
does not work with a compilation target. So just link in the usual way and
accept the overlinking (for now).
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
826472ce36 meson: update linking for fixed meson linking
With mesonbuid/meson#1545, meson does not propagate deps of a library
when linking with that library. That's of course the right thing to do,
but it exposes a bunch of missing deps.

This compiles with both meson-0.39.1 and meson-git + pr/1545.
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
e0bec52f27 meson: add test-libudev-sym
This is slightly complicated by the fact that files('libudev.h') cannot be used
as an argument in custom_target command (string is required). This restriction
should be lifted in future versions of mesons, so this could be simplified.
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
37ab1a25ec meson: add test-libsystemd-sym, fix linking of libsystemd
This is quite messy. I think libtool might have been using something
like -Wl,--whole-archive, but I don't think meson has support for that.
For now, just recompile all the sources for linking into libsystemd
directly. This should not matter much for efficiency, since it's a
few small files.
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
4e4ab1c32a meson: install systemd-sulogin-shell too 2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
d714867686 meson: remove libnss_*.so symlinks after install 2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
7b76fce1a5 meson: create various symlinks
v2:
- remove bashisms
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
94e75a5409 meson: create dirs and touch /usr
This is the equivalent of $(INSTALL_DIRS) and install-touch-usr-hook.
I did not bother to create the directories into which we install files,
since they will be created anyway.

v2:
- remove bashism
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
f4ee10a282 meson: create a static version of libshared and link libcore and some tests to it
This is what autoconf-based build does, and it makes test-bus-error and
test-engine able to access the bus error mapping table. OTOH, this is a heavy
price to pay: it would be excellent to link libcore.a to libsystemd-shared-NNN.so.
Otherwise we duplicate the same code in 'systemd' and 'libsystemd-shared-NNN.so'.

-rwxrwxr-x. 1 4075544 Apr  6 20:30 systemd* <-- libcore linked against libsystemd-shared.so
-rwxrwxr-x. 1 5596504 Apr  9 14:07 systemd* <-- libcore linked against libsystemd-shared.a

v2:
- update for 6b5cf3ea62
2017-04-23 21:47:27 -04:00
Zbigniew Jędrzejewski-Szmek
6b30f2801b meson: include the library symbol version list in link_depends
This is pretty ugly, because I don't know how to use a single
definition for two purposes:
- --version-script needs a path relative to the build root
- link_depends needs a path relative to source root
Also, link_depends does not accept files() output
[https://github.com/mesonbuild/meson/issues/1172], and I don't see a way to go
from files() output to a string path that can be used to craft the -Wl arg.

Ideally, a single files() result could be used in both places.
I'm leaving this as a separate commit for now.
2017-04-23 21:47:26 -04:00
Zbigniew Jędrzejewski-Szmek
572baca1d4 meson: add option to install tests
Instead of a separate target as with make, it is decided at configure time
whether to install tests as part of the install target. The effect should be
the same.
2017-04-23 21:47:26 -04:00
Zbigniew Jędrzejewski-Szmek
69e96427a2 meson: define tests
Tests can be run with 'ninja-build test' or using 'mesontest'.
'-Dtests=unsafe' can be used to include the "unsafe" tests in the
test suite, same as with autotools.

v2:
- use more conf.get guards are optional components
- declare deps on generated headers for test-{af,arphrd,cap}-list

v3:
- define environment for tests

  Most test don't need this, but to be consistent with autotools-based build, and
  to avoid questions which tests need it and which don't, set the same environment
  for all tests.

v4:
- rework test generation

  Use a list of lists to define each test. This way we can reduce the
  boilerplate somewhat, although the test listings are still pretty verbose. We
  can also move the definitions of the tests to the subdirs. Unfortunately some
  subdirs are included earlier than some of the libraries that test binaries
  are linked to.  So just dump all definitions of all tests that cannot be
  defined earlier into src/test. The `executable` definitions are still at the
  top level, so the binaries are compiled into the build root.

v5:
- tag test-dnssec-complex as manual

v6:
- fix HAVE_LIBZ typo
- add missing libgobject/libgio defs
- mark test-qcow2 as manual
2017-04-23 21:47:26 -04:00
Zbigniew Jędrzejewski-Szmek
d68b342b03 meson: add TAGS target
Quite necessary for all the emacs users out there ;)

v2:
- fix error with etags or git are not found

v3:
- move the definition of git and etags up so it's available for man/
2017-04-23 21:47:26 -04:00
Zbigniew Jędrzejewski-Szmek
78b68dcb55 meson: avoid detecting m4 dir as a program
This is a bug in meson, already fixed upstream.
For now, just specify the full path.
2017-04-23 21:47:26 -04:00
Zbigniew Jędrzejewski-Szmek
5c23128dab meson: build systemd using meson
It's crucial that we can build systemd using VS2010!

... er, wait, no, that's not the official reason. We need to shed old systems
by requring python 3! Oh, no, it's something else. Maybe we need to throw out
345 years of knowlege accumulated in autotools? Whatever, this new thing is
cool and shiny, let's use it.

This is not complete, I'm throwing it out here for your amusement and critique.

- rules for sd-boot are missing. Those might be quite complicated.

- rules for tests are missing too. Those are probably quite simple and
  repetitive, but there's lots of them.

- it's likely that I didn't get all the conditions right, I only tested "full"
  compilation where most deps are provided and nothing is disabled.

- busname.target and all .busname units are skipped on purpose.

  Otherwise, installation into $DESTDIR has the same list of files and the
  autoconf install, except for .la files.

It'd be great if people had a careful look at all the library linking options.
I added stuff until things compiled, and in the end there's much less linking
then in the old system. But it seems that there's still a lot of unnecessary
deps.

meson has a `shared_module` statement, which sounds like something appropriate
for our nss and pam modules. Unfortunately, I couldn't get it to work. For the
nss modules, we need an .so version of '2', but `shared_module` disallows the
version argument. For the pam module, it also didn't work, I forgot the reason.

The handling of .m4 and .in and .m4.in files is rather awkward. It's likely
that this could be simplified. If make support is ever dropped, I think it'd
make sense to switch to a different templating system so that two different
languages and not required, which would make everything simpler yet.

v2:
- use get_pkgconfig_variable
- use sh not bash
- use add_project_arguments

v3:
- drop required:true and fix progs/prog typo

v4:
- use find_library('bz2')
- add TTY_GID definition
- define __SANE_USERSPACE_TYPES__
- use join_paths(prefix, ...) is used on all paths to make them all absolute

v5:
- replace all declare_dependency's with []
- add more conf.get guards around optional components

v6:
- drop -pipe, -Wall which are the default in meson
- use compiler.has_function() and compiler.has_header_symbol instead of the
  hand-rolled checks.
- fix duplication in 'liblibsystemd' library name
- use the right .sym file for pam_systemd
- rename 'compiler' to 'cc': shorter, and more idiomatic.

v7:
- use ENABLE_ENVIRONMENT_D not HAVE_ENVIRONMENT_D
- rename prefix to prefixdir, rootprefix to rootprefixdir
  ("prefix" is too common of a name and too easy to overwrite by mistake)
- wrap more stuff with conf.get('ENABLE...') == 1
- use rootprefix=='/' and rootbindir as install_dir, to fix paths under
  split-usr==true.

v8:
- use .split() also for src/coredump. Now everything is consistent ;)
- add rootlibdir option and use it on the libraries that require it

v9:
- indentation

v10:
- fix check for qrencode and libaudit

v11:
- unify handling of executable paths, provide options for all progs

  This makes the meson build behave slightly differently than the
  autoconf-based one, because we always first try to find the executable in the
  filesystem, and fall back to the default. I think different handling of
  loadkeys, setfont, and telinit was just a historical accident.

  In addition to checking in $PATH, also check /usr/sbin/, /sbin for programs.
  In Fedora $PATH includes /usr/sbin, (and /sbin is is a symlink to /usr/sbin),
  but in Debian, those directories are not included in the path.

  C.f. https://github.com/mesonbuild/meson/issues/1576.

- call all the options 'xxx-path' for clarity.
- sort man/rules/meson.build properly so it's stable
2017-04-23 21:47:26 -04:00