--- config.default.orig	2020-05-05 13:23:54.788174103 +0200
+++ config.default	2020-05-05 13:26:26.632128916 +0200
@@ -12,7 +12,7 @@
 #BACKEND = gdi
 #BACKEND = sdl
 #BACKEND = sdl2
-#BACKEND = mixer_sdl
+BACKEND = mixer_sdl2
 #BACKEND = mixer_sdl2
 #BACKEND = posix
 
@@ -21,7 +21,7 @@
 #OSTYPE = cygwin
 #OSTYPE = freebsd
 #OSTYPE = haiku
-#OSTYPE = linux
+OSTYPE = linux
 #OSTYPE = mingw
 #OSTYPE = mac
 
@@ -39,23 +39,23 @@
 
 #WIN32_CONSOLE = 1 # adds a console for windows debugging
 
-#MULTI_THREAD = 1 # Enable multithreading
+MULTI_THREAD = 1 # Enable multithreading
 
 # using freetype for Truetype font support
-USE_FREETYPE = 0
+USE_FREETYPE = 1
 
 # using UPnP for easy server hosting behind routers
-#USE_UPNP = 0
+USE_UPNP = 1
 
 # using zstd compression library
-#USE_ZSTD = 0
+USE_ZSTD = 1
 
 # Define these as empty strings, if you don't have the respective config program
 #ALLEGRO_CONFIG = allegro-config
 #PNG_CONFIG     = pkg-config libpng
 #SDL_CONFIG     = sdl-config
 #SDL2_CONFIG    = sdl2-config
-#FREETYPE_CONFIG    = freetype-config
+FREETYPE_CONFIG    = pkg-config freetype2
 
 #VERBOSE = 1