Merge pull request #1089 from ascent12/hwcontext_drm

Check for libavutil/hwcontext_drm.h

examples/meson.build

@@ -1,9 +1,14 @@
 threads = dependency('threads')
 wayland_cursor = dependency('wayland-cursor')
 
-libavutil = dependency('libavutil', required: false)
-libavcodec = dependency('libavcodec', required: false)
-libavformat = dependency('libavformat', required: false)
+# These versions correspond to ffmpeg 4.0
+libavutil = dependency('libavutil', version: '>=56.14.100', required: false)
+libavcodec = dependency('libavcodec', version: '>=58.18.100', required: false)
+libavformat = dependency('libavformat', version: '>=58.12.100', required: false)
+
+if not cc.has_header('libavutil/hwcontext_drm.h', dependencies: libavutil)
+    libavutil = disabler()
+endif
 
 executable('simple', 'simple.c', dependencies: wlroots)
 executable('pointer', 'pointer.c', dependencies: wlroots)

meson.build

@@ -3,7 +3,7 @@ project(
 	'c',
 	version: '0.0.1',
 	license: 'MIT',
-	meson_version: '>=0.43.0',
+	meson_version: '>=0.44.0',
 	default_options: [
 		'c_std=c11',
 		'warning_level=2',