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author | Simon McVittie <smcv@collabora.com> | 2021-09-10 18:32:00 +0100 |
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committer | Simon Ser <contact@emersion.fr> | 2021-10-28 12:46:06 +0000 |
commit | 0cdd2a5c54771d18dc3ec9d690b7fbb754b90dfd (patch) | |
tree | 7b6efb9a6b34c3a7b3a1220d1c687175ff1f7e0a /meson.build | |
parent | fceabb7e9e167e1100c244bb4f460c8a346a5478 (diff) | |
download | wayland-0cdd2a5c54771d18dc3ec9d690b7fbb754b90dfd.tar.gz |
build: Include the Wayland minor version in libraries' ABI versions
The ABI of a shared library on Linux is given by a major version, which
is part of the SONAME and is incremented (rarely) on incompatible
changes, and a minor version, which is part of the basename of the
regular file to which the SONAME provides a symlink.
Until now, the ABI minor version was hard-coded, which means we can't
tell which of a pair of Wayland libraries is newer (and therefore
likely to have more symbols and/or fewer bugs).
libwayland-egl already had ABI major version 1, so we can use the
"marketing" version number as the ABI major.minor version number
directly, so Wayland 1.19.90 would produce
libwayland-egl.so.1 -> libwayland-egl.so.1.19.90.
libwayland-cursor and libwayland-server have ABI major version 0,
and OS distributions don't like it when there's a SONAME bump for no
good reason, so use their existing ABI major version together with
the "marketing" minor version:
libwayland-cursor.so.0 -> libwayland-cursor.so.0.19.90.
If the Wayland major version number is incremented to 2, we'll have to
rethink this, so add some error() to break the build if/when that
happens. Assuming that Wayland 2.0 would involve breaking changes,
the best way would probably to bump all the SONAMEs to
libwayland-foo.so.2.
Resolves: https://gitlab.freedesktop.org/wayland/wayland/-/issues/175
Signed-off-by: Simon McVittie <smcv@collabora.com>
Diffstat (limited to 'meson.build')
-rw-r--r-- | meson.build | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/meson.build b/meson.build index 5cd978f..acc3d78 100644 --- a/meson.build +++ b/meson.build @@ -8,6 +8,7 @@ project( 'buildtype=debugoptimized' ] ) +wayland_version = meson.project_version().split('.') config_h = configuration_data() config_h.set_quoted('PACKAGE', meson.project_name()) |