sdl2: Update to version 2.0.20

- Update from 2.0.18 to 2.0.20
- Update of rootfile
- Changelog
   2.0.20:
    General:
     * SDL_RenderGeometryRaw() takes a pointer to SDL_Color, not int. You can cast color
       data in SDL_PIXELFORMAT_RGBA32 format (SDL_PIXELFORMAT_ABGR8888 on little endian
       systems) for this parameter.
     * Improved accuracy of horizontal and vertical line drawing when using OpenGL or
       OpenGLES
     * Added the hint SDL_HINT_RENDER_LINE_METHOD to control the method of line drawing
       used, to select speed, correctness, and compatibility.
    Windows:
     * Fixed size of custom cursors
    Linux:
     * Fixed hotplug controller detection, broken in 2.0.18

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>

config/rootfiles/packages/sdl2

@@ -81,7 +81,7 @@
 #usr/lib/cmake/SDL2/sdl2-config-version.cmake
 #usr/lib/cmake/SDL2/sdl2-config.cmake
 usr/lib/libSDL2-2.0.so.0
-usr/lib/libSDL2-2.0.so.0.18.0
+usr/lib/libSDL2-2.0.so.0.18.2
 #usr/lib/libSDL2.la
 usr/lib/libSDL2.so
 #usr/lib/libSDL2_test.a

lfs/sdl2

@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 2.0.18
+VER        = 2.0.20
 
 THISAPP    = SDL2-$(VER)
 DL_FILE    = $(THISAPP).tar.gz
@@ -32,7 +32,7 @@ DL_FROM    = $(URL_IPFIRE)
 DIR_APP    = $(DIR_SRC)/$(THISAPP)
 TARGET     = $(DIR_INFO)/$(THISAPP)
 PROG       = sdl2
-PAK_VER    = 5
+PAK_VER    = 6
 
 DEPS       = alsa
 
@@ -44,7 +44,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = c1dd33299db5b7091f37d989c68d5212
+$(DL_FILE)_MD5 = a53acc02e1cca98c4123229069b67c9e
 
 install : $(TARGET)