ffmpegthumbnailer: fix compilation with macOS

Signed-off-by: Rosen Penev <[email protected]>

Author: neheb

releases.json

@@ -1949,6 +1949,7 @@
       "libffmpegthumbnailer"
     ],
     "versions": [
+      "2.2.3-2",
       "2.2.3-1",
       "2.2.2-4",
       "2.2.2-3",

subprojects/packagefiles/libffmpegthumbnailer/meson.build

@@ -1,8 +1,8 @@
 project(
   'ffmpegthumbnailer',
   'cpp',
+  license: 'LGPL-2.1-or-later',
   version: '2.2.3',
-  default_options: ['warning_level=0', 'cpp_std=c++11'],
   meson_version: '>=0.54.1',
 )
 
@@ -81,6 +81,7 @@ endif
 libffmpegthumbnailer = library(
   'ffmpegthumbnailer',
   compfiles,
+  override_options: 'cpp_std=c++11',
   dependencies: ffmpegthumbnailer_deps,
   install: true,
   version: '4.15.1',

subprojects/packagefiles/libffmpegthumbnailer/test/meson.build

@@ -28,6 +28,7 @@ ffmpegthumbnailertest = executable(
   'videothumbnailertest.cpp',
   'videothumbnailerctest.cpp',
   cpp_args: '-DTEST_DATADIR="@0@"'.format(meson.current_source_dir()),
+  override_options: 'cpp_std=c++11',
   dependencies: [catch_dep, testdep],
 )