diff options
| author | Simon Ser <contact@emersion.fr> | 2021-12-19 16:39:57 +0100 |
|---|---|---|
| committer | Simon Zeni <simon@bl4ckb0ne.ca> | 2021-12-20 13:56:09 +0000 |
| commit | ec2845750862cc0b175bef59de4305f6da91960a (patch) | |
| tree | 4ad5a8988cfec91aa5bb99f83f36db7001fbcbae | |
| parent | b5a019d5754064788471e9eba4ee9354c7cc4cd5 (diff) | |
backend: error out in autocreate without libinput support
The libinput backend is now optional. However, this means that a
user building wlroots without the correct libinput dependencies
will end up with a compositor which doesn't respond to input events.
wlr_backend_autocreate is supposed to return a sensible setup, so in
this case let's just error out and explain what happened. Users can
suppress the check by setting WLR_LIBINPUT_NO_DEVICES=1 (already used
to suppress the zero input device case inside the libinput backend).
Compositors which really want to create a bare DRM backend can easily
create it manually instead of using wlr_backend_autocreate.
| -rw-r--r-- | backend/backend.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/backend/backend.c b/backend/backend.c index 24150b13..bfb43ba0 100644 --- a/backend/backend.c +++ b/backend/backend.c @@ -364,6 +364,19 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) { return NULL; } wlr_multi_backend_add(backend, libinput); +#else + const char *no_devs = getenv("WLR_LIBINPUT_NO_DEVICES"); + if (no_devs && strcmp(no_devs, "1") == 0) { + wlr_log(WLR_INFO, "WLR_LIBINPUT_NO_DEVICES is set, " + "starting without libinput backend"); + } else { + wlr_log(WLR_ERROR, "libinput support is not compiled in, " + "refusing to start"); + wlr_log(WLR_ERROR, "Set WLR_LIBINPUT_NO_DEVICES=1 to suppress this check"); + wlr_session_destroy(multi->session); + wlr_backend_destroy(backend); + return NULL; + } #endif #if WLR_HAS_DRM_BACKEND |