Fix build, add SDL2 stuff for CI testing

Signed-off-by: falkTX <falktx@falktx.com>

.github/workflows/makefile.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Set up dependencies
       run: |
         sudo apt-get update -qq
-        sudo apt-get install -yq libasound2-dev libcairo2-dev libdbus-1-dev libgl1-mesa-dev liblo-dev libpulse-dev libx11-dev libxcursor-dev libxext-dev libxrandr-dev xvfb
+        sudo apt-get install -yq libasound2-dev libcairo2-dev libdbus-1-dev libgl1-mesa-dev liblo-dev libpulse-dev libsdl2-dev libx11-dev libxcursor-dev libxext-dev libxrandr-dev xvfb
     - name: Without any warnings
       env:
         CFLAGS: -Werror

distrho/src/jackbridge/RtAudioBridge.hpp

@@ -52,6 +52,7 @@
 # include "../../extra/String.hpp"
 # include "../../extra/ScopedDenormalDisable.hpp"
 
+using DISTRHO_NAMESPACE::ScopedDenormalDisable;
 using DISTRHO_NAMESPACE::ScopedPointer;
 using DISTRHO_NAMESPACE::String;
 

distrho/src/jackbridge/SDL2Bridge.hpp

@@ -224,6 +224,7 @@ struct SDL2Bridge : NativeBridge {
 
        #if DISTRHO_PLUGIN_NUM_OUTPUTS == 0
         // if there are no outputs, run process callback now
+        const ScopedDenormalDisable sdd;
         self->jackProcessCallback(numFrames, self->jackProcessArg);
        #endif
     }