Add FAudio dependency for Wine 5

Dockerfile

@@ -2,7 +2,7 @@
 FROM ubuntu:18.04
 
 # Set environment variables
-ENV CONTAINER_VERSION=0.5 \
+ENV CONTAINER_VERSION=0.6 \
     ELDEWRITO_VERSION=0.6.1 \
     MTNDEW_CHECKSUM=496b9296239539c747347805e15d2540 \
     DISPLAY=:1 \
@@ -15,14 +15,25 @@ ENV CONTAINER_VERSION=0.5 \
 RUN apt-get update && \
     apt-get install -y wget software-properties-common apt-transport-https cabextract
 
-# Install Wine stable
+# Install Wine key and repository
 RUN dpkg --add-architecture i386 && \
     wget -nc https://dl.winehq.org/wine-builds/winehq.key && \
     apt-key add winehq.key && \
     rm winehq.key && \
     apt-add-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main' && \
-    apt-get update && \
-    apt-get install -y winehq-stable
+    apt-get update
+
+# Install FAudio because it's missing in Ubuntu 18.04 (https://forum.winehq.org/viewtopic.php?f=8&t=32192)
+RUN wget https://download.opensuse.org/repositories/Emulators:/Wine:/Debian/xUbuntu_18.04/amd64/libfaudio0_19.07-0~bionic_amd64.deb && \
+    wget https://download.opensuse.org/repositories/Emulators:/Wine:/Debian/xUbuntu_18.04/i386/libfaudio0_19.07-0~bionic_i386.deb && \
+    apt-get install -y libsdl2-2.0-0 libsdl2-2.0-0:i386 && \
+    dpkg -i libfaudio0_19.07-0~bionic_amd64.deb && \
+    dpkg -i libfaudio0_19.07-0~bionic_i386.deb && \
+    rm libfaudio0_19.07-0~bionic_amd64.deb && \
+    rm libfaudio0_19.07-0~bionic_i386.deb
+
+# Install Wine stable
+RUN apt-get install -y --install-recommends winehq-stable
 
 # Download winetricks from source
 RUN wget https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks && \