Set library major version to 0 (same as when using configure instead of cmake as Fedora does)

Add some bugfix patches from Fedora

SDL2-2.0.5-null-deref.patch

@@ -0,0 +1,45 @@
+
+# HG changeset patch
+# User Sam Lantinga <slouken@libsdl.org>
+# Date 1477183983 25200
+# Node ID fbf9b0e3589a1f88e2eefbbeb3b632e2da795fde
+# Parent  5184186d4366169617b434f5b71c618a7035cde4
+Fixed NULL pointer dereference, thanks Ozkan Sezer
+
+diff -r 5184186d4366 -r fbf9b0e3589a src/video/SDL_blit_N.c
+--- a/src/video/SDL_blit_N.c	Sat Oct 22 11:01:55 2016 -0700
++++ b/src/video/SDL_blit_N.c	Sat Oct 22 17:53:03 2016 -0700
+@@ -125,11 +125,7 @@
+                                                        0x0C);
+     vector unsigned char vswiz;
+     vector unsigned int srcvec;
+-#define RESHIFT(X) (3 - ((X) >> 3))
+-    Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
+-    Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
+-    Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
+-    Uint32 amask;
++    Uint32 rmask, gmask, bmask, amask;
+ 
+     if (!srcfmt) {
+         srcfmt = &default_pixel_format;
+@@ -138,6 +134,11 @@
+         dstfmt = &default_pixel_format;
+     }
+ 
++#define RESHIFT(X) (3 - ((X) >> 3))
++    rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
++    gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
++    bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
++
+     /* Use zero for alpha if either surface doesn't have alpha */
+     if (dstfmt->Amask) {
+         amask =
+@@ -149,6 +150,7 @@
+                           0xFFFFFFFF);
+     }
+ #undef RESHIFT
++
+     ((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask);
+     vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0));
+     return (vswiz);
+

SDL2-2.0.5-ppc.patch

@@ -0,0 +1,45 @@
+
+# HG changeset patch
+# User Sam Lantinga <slouken@libsdl.org>
+# Date 1477159315 25200
+# Node ID 5184186d4366169617b434f5b71c618a7035cde4
+# Parent  71d4148e32de5088c4bc2f04c1e5ded647a2bf82
+Fixed bug 3466 - Can't build 2.0.5 on ppc64
+
+/home/fedora/SDL2-2.0.5/src/video/SDL_blit_N.c: In function 'calc_swizzle32':
+/home/fedora/SDL2-2.0.5/src/video/SDL_blit_N.c:127:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
+     const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
+     ^
+
+diff -r 71d4148e32de -r 5184186d4366 src/video/SDL_blit_N.c
+--- a/src/video/SDL_blit_N.c	Wed Oct 19 21:22:42 2016 -0700
++++ b/src/video/SDL_blit_N.c	Sat Oct 22 11:01:55 2016 -0700
+@@ -118,12 +118,6 @@
+         16, 8, 0, 24,
+         0, NULL
+     };
+-    if (!srcfmt) {
+-        srcfmt = &default_pixel_format;
+-    }
+-    if (!dstfmt) {
+-        dstfmt = &default_pixel_format;
+-    }
+     const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
+                                                        0x04, 0x04, 0x04, 0x04,
+                                                        0x08, 0x08, 0x08, 0x08,
+@@ -136,6 +130,14 @@
+     Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
+     Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
+     Uint32 amask;
++
++    if (!srcfmt) {
++        srcfmt = &default_pixel_format;
++    }
++    if (!dstfmt) {
++        dstfmt = &default_pixel_format;
++    }
++
+     /* Use zero for alpha if either surface doesn't have alpha */
+     if (dstfmt->Amask) {
+         amask =
+

SDL2-2.0.5-soversion.patch

@@ -0,0 +1,12 @@
+diff -urN SDL2-2.0.5/CMakeLists.txt SDL2-2.0.5-patched/CMakeLists.txt
+--- SDL2-2.0.5/CMakeLists.txt	2016-10-20 13:56:26.000000000 +1000
++++ SDL2-2.0.5-patched/CMakeLists.txt	2017-02-27 20:03:11.662196288 +1000
+@@ -1541,7 +1541,7 @@
+   if(UNIX)
+     set_target_properties(SDL2 PROPERTIES
+       VERSION ${LT_VERSION}
+-      SOVERSION ${LT_REVISION}
++      SOVERSION 0
+       OUTPUT_NAME "SDL2-${LT_RELEASE}")
+   else()
+     set_target_properties(SDL2 PROPERTIES

SDL2.spec

@@ -1,19 +1,22 @@
 %define oversion 0.4.1
 
 %define api 2.0
-%define major 1
+%define major 0
 %define libname %mklibname %{name}_ %{api} %{major}
 %define devname %mklibname %{name} -d
 
 Summary:	Simple DirectMedia Layer
 Name:		SDL2
 Version:	2.0.5
-Release:	2
+Release:	3
 License:	Zlib
 Group:		System/Libraries
 Url:		http://www.libsdl.org/
 Source0:	http://www.libsdl.org/release/%{name}-%{version}.tar.gz
 Patch0:		SDL2-2.0.3-cmake.patch
+Patch1:		SDL2-2.0.5-soversion.patch
+Patch2:		SDL2-2.0.5-ppc.patch
+Patch3:		SDL2-2.0.5-null-deref.patch
 BuildRequires:	cmake
 BuildRequires:	nas-devel
 BuildRequires:	pkgconfig(alsa)