[vala-extra-vapis] SDL2_ttf: Fix a couple of binding errors and attribute issues

[Rico Tzschichholz <ricotz src gnome org>]

commit 36ecbf7f46dd9d5806511713c60ca7f4a6c8cb0a
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Mar 7 18:37:57 2022 +0100

    SDL2_ttf: Fix a couple of binding errors and attribute issues

 SDL2_ttf.vapi | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/SDL2_ttf.vapi b/SDL2_ttf.vapi
index 7f98035..edced58 100644
--- a/SDL2_ttf.vapi
+++ b/SDL2_ttf.vapi
@@ -30,7 +30,7 @@
 [CCode (cheader_filename = "SDL2/SDL_ttf.h")]
 namespace SDLTTF {
        [CCode (cname = "TTF_Linked_Version")]
-       public static unowned SDL.Version linked ();
+       public static unowned SDL.Version? linked_version ();
 
        [CCode (cname = "TTF_ByteSwappedUNICODE")]
        public static void byteswap_unicode (int swapped);
@@ -71,16 +71,16 @@ namespace SDLTTF {
                public Font.index (string file, int ptsize, long index);
 
                [CCode (cname = "TTF_OpenFontRW")]
-               public Font.from_rwops (SDL.RWops src, int ptsize, [CCode (pos = "1.1")] bool freesrc = 
false);
+               public Font.from_rwops (SDL.RWops src, int ptsize, [CCode (pos = 1.1)] bool freesrc = false);
 
                [CCode (cname = "TTF_OpenFontIndexRW")]
-               public Font.from_rwops_index (SDL.RWops src, int ptsize, long index, [CCode (pos = "1.1")] 
bool freesrc = false);
+               public Font.from_rwops_index (SDL.RWops src, int ptsize, long index, [CCode (pos = 1.1)] bool 
freesrc = false);
 
                [CCode (cname = "TTF_OpenFontDPIRW")]
-               public Font.from_rwops_dpi (SDL.RWops src, int ptsize, uint hdpi, uint vdpi, [CCode (pos = 
"1.1")] bool freesrc = false);
+               public Font.from_rwops_dpi (SDL.RWops src, int ptsize, uint hdpi, uint vdpi, [CCode (pos = 
1.1)] bool freesrc = false);
 
                [CCode (cname = "TTF_OpenFontIndexDPIRW")]
-               public Font.from_rwops_index_dpi (SDL.RWops src, int ptsize, long index, uint hdpi, uint 
vdpi, [CCode (pos = "1.1")] bool freesrc = false);
+               public Font.from_rwops_index_dpi (SDL.RWops src, int ptsize, long index, uint hdpi, uint 
vdpi, [CCode (pos = 1.1)] bool freesrc = false);
 
                [CCode (cname = "TTF_OpenFontDPI")]
                public Font.dpi (string file, int ptsize, uint hdpi, uint vdpi);
@@ -182,10 +182,10 @@ namespace SDLTTF {
                public SDL.Video.Surface? render_glyph_shaded (unichar ch, SDL.Video.Color fg, 
SDL.Video.Color bg);
 
                [CCode (cname = "TTF_RenderGlyph_Blended")]
-               public SDL.Video.Surface? render_glyph_blended_utf16 (unichar2 ch, SDL.Video.Color fg, 
SDL.Video.Color bg);
+               public SDL.Video.Surface? render_glyph_blended_utf16 (unichar2 ch, SDL.Video.Color fg);
 
                [CCode (cname = "TTF_RenderGlyph32_Blended")]
-               public SDL.Video.Surface? render_glyph_blended (unichar ch, SDL.Video.Color fg, 
SDL.Video.Color bg);
+               public SDL.Video.Surface? render_glyph_blended (unichar ch, SDL.Video.Color fg);
 
                [CCode (cname = "TTF_RenderText_Solid")]
                public SDL.Video.Surface? render_latin1 ([CCode (array_length = false)] uint8[] text, 
SDL.Video.Color fg);