meson.build: wayland-scanner is only needed for tests

wayland-scanner is only needed for tests so don't require it if tests
are disabled

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

meson.build

@@ -8,8 +8,6 @@ wayland_protocols_version = meson.project_version()
 
 fs = import('fs')
 
-dep_scanner = dependency('wayland-scanner', native: true)
-
 stable_protocols = [
 	'presentation-time',
 	'viewporter',

tests/meson.build

 prog_scan_sh = find_program('scan.sh')
+dep_scanner = dependency('wayland-scanner', native: true)
 prog_scanner = find_program(dep_scanner.get_pkgconfig_variable('wayland_scanner'))
 
 libwayland = [

[Joshua Watt]

While perhaps true for the CI tests running here, this is not true elsewhere. For example, the yocto project packages tests and Wayland scanner orthogonally. What's the problem you are trying to solve?

[Simon Ser]

This repo is wayland-protocols, not libwayland. wayland-protocols is just a bunch of XML files.

[Joshua Watt]

Ah sorry I missed that :(

[Fabrice Fontaine]

This change was needed to avoid the following build failure on buildroot when tests are disabled and host-wayland is not compiled:

Build-time dependency wayland-scanner found: NO (tried pkgconfig and cmake)

../output-1/build/wayland-protocols-1.23/meson.build:11:0: ERROR: Dependency "wayland-scanner" not found, tried pkgconfig and cmake

Full build log: http://autobuild.buildroot.org/results/274/2744e50465a9cd9d3726d23298ad6c943ef49a21/build-end.log