wlroots/render/gles2/shaders/check.sh

#!/bin/sh -eu

# glslang prints log messages to stdout, remap to stderr
exec "$@" >&2
render/gles2: skip glslang check when shaders are unchanged Currently, the glslang check is run every time ninja is invoked, even with an up-to-date build directory when GLSL shaders haven't been modified. This is due to glslang not creating any output file: the _check file never exists so ninja keeps trying to generate it by running the command. Unfortunately Meson doesn't support running commands with no outputs [1]. Create an empty output file to fix this by setting `capture: true`. This doesn't work out-of-the-box, because glslang prints messages to stdout, and provides no way to change this [2]. As a result, shader errors are not surfaced back to the user - they end up in the _check file. Workaround this with a thin wrapper which redirects stdout to stderr when invoking glslang. [1]: https://github.com/mesonbuild/meson/issues/11506 [2]: https://github.com/KhronosGroup/glslang/pull/4138 2026-01-03 19:35:17 +01:00			`#!/bin/sh -eu`

			`# glslang prints log messages to stdout, remap to stderr`
			`exec "$@" >&2`