SDL2 on windows, we need to disable some compiler and linker options

Author: mywave82

configure.ac

@@ -197,8 +197,8 @@ if test ${enable_output_sdl:=yes} = yes; then
      AC_LANG_POP(C)
    fi
   dnl strip away options that would turn our application from console to a windows GUI application
-  SDL_CFLAGS=`echo $SDL_CFLAGS |sed 's/-Dmain=SDL_main//g'`
-  SDL_LIBS=`echo $SDL_LIBS | sed 's/-mwindows/-mconsole/g' 's/-lSDLmain//g' 's/-lSDL2main//g'`
+  SDL_CFLAGS=`echo $SDL_CFLAGS |sed -e 's/-Dmain=SDL_main//g'`
+  SDL_LIBS=`echo $SDL_LIBS | sed -e 's/-mwindows/-mconsole/g' -e 's/-lSDLmain//g' -e 's/-lSDL2main//g'`
 fi
 
 # ALSA output