For CI - always disable MIR support for ARM-CI build for now.

SDL 2.0.5 requires MIR version 0.24.0+ and the MIR version in our sysroot is older.

.travis.yml

@@ -289,6 +289,10 @@ env:
     - secure: ecj/PwpbHkH9AYFsc2TMeRuNm5E3xMM8A0x4AcGhzpwDuZWdFx3R1T4G9u45Z5aUyTJWGqOeX1JPaEVVFZuYnNBKRy0kmiUrM9EE0j7WsT57K48tP1ysn2ynyvHgbYkKOfYR0t8XAMWTBbulT9DVVk3DS69//2WgiXGDVUEJTyI=
     - numjobs=4
     - ARM=1
+    # Our armhf sysroot contains an old version of MIR, SDL 2.0.5 now requires MIR version 0.24.0+
+    # Currently there is no easy way to script for this version detection because the content mir_toolkit/version.h is identical between older version and 0.24.0
+    # As a quick woraround, we always disable MIR support for ARM build for now
+    - VIDEO_MIR=0
     - USE_CCACHE=1
     - CCACHE_SLOPPINESS=pch_defines,time_macros
     - CCACHE_COMPRESS=1

Rakefile

@@ -54,7 +54,7 @@ task :cmake do
   platform = 'native'
   build_options = ''
   # TODO: Need to find a way to automatically populate the array with all the Urho3D supported build options, at the moment it only contains those being used in CI
-  ['URHO3D_64BIT', 'URHO3D_LIB_TYPE', 'URHO3D_STATIC_RUNTIME', 'URHO3D_PCH', 'URHO3D_BINDINGS', 'URHO3D_OPENGL', 'URHO3D_D3D11', 'URHO3D_TESTING', 'URHO3D_TEST_TIMEOUT', 'URHO3D_UPDATE_SOURCE_TREE', 'URHO3D_TOOLS', 'URHO3D_DEPLOYMENT_TARGET', 'URHO3D_USE_LIB64_RPM', 'CMAKE_BUILD_TYPE', 'CMAKE_OSX_DEPLOYMENT_TARGET', 'IOS', 'IPHONEOS_DEPLOYMENT_TARGET', 'WIN32', 'ANDROID', 'ANDROID_ABI', 'ANDROID_NATIVE_API_LEVEL', 'ANDROID_TOOLCHAIN_NAME', 'RPI', 'RPI_ABI', 'ARM', 'ARM_ABI_FLAGS', 'WEB', 'EMSCRIPTEN_SHARE_DATA', 'EMSCRIPTEN_EMRUN_BROWSER'].each { |var|
+  ['URHO3D_64BIT', 'URHO3D_LIB_TYPE', 'URHO3D_STATIC_RUNTIME', 'URHO3D_PCH', 'URHO3D_BINDINGS', 'URHO3D_OPENGL', 'URHO3D_D3D11', 'URHO3D_TESTING', 'URHO3D_TEST_TIMEOUT', 'URHO3D_UPDATE_SOURCE_TREE', 'URHO3D_TOOLS', 'URHO3D_DEPLOYMENT_TARGET', 'URHO3D_USE_LIB64_RPM', 'CMAKE_BUILD_TYPE', 'CMAKE_OSX_DEPLOYMENT_TARGET', 'IOS', 'IPHONEOS_DEPLOYMENT_TARGET', 'WIN32', 'ANDROID', 'ANDROID_ABI', 'ANDROID_NATIVE_API_LEVEL', 'ANDROID_TOOLCHAIN_NAME', 'RPI', 'RPI_ABI', 'ARM', 'ARM_ABI_FLAGS', 'WEB', 'EMSCRIPTEN_SHARE_DATA', 'EMSCRIPTEN_EMRUN_BROWSER', 'VIDEO_MIR'].each { |var|
     ARGV << "#{var}=\"#{ENV[var]}\"" if ENV[var] && !ARGV.find { |arg| /#{var}=/ =~ arg }
   }
   ARGV.each { |option|