build: fix Win64 compilation with mingw64, using an updated SDL build.

configure.ac

@@ -219,9 +219,13 @@ else
 fi
 if test "${ac_cv_my_have_sdl_mixer}" = "no"; then
   AC_MSG_WARN([SDL_mixer not found])
+else
+  AC_DEFINE(USE_SDL_MIXER, 1, Define to 1 to use SDL_mixer)
 fi
 if test "${ac_cv_my_have_sdl_image}" = "no"; then
   AC_MSG_WARN([SDL_image not found])
+else
+  AC_DEFINE(USE_SDL_IMAGE, 1, Define to 1 to use SDL_image)
 fi
 AM_CONDITIONAL(USE_SDL, test "${ac_cv_my_have_sdl}" = "yes")
 AM_CONDITIONAL(USE_SDL_MIXER, test "${ac_cv_my_have_sdl_mixer}" = "yes")

src/audio.cpp

@@ -14,7 +14,7 @@
 
 #include <cmath>
 
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
 #   include <SDL.h>
 #   include <SDL_mixer.h>
 #endif
@@ -30,7 +30,7 @@ namespace lol
 
 void Audio::Setup(int channels)
 {
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
     Mix_OpenAudio(22050, AUDIO_S16, channels, 1024);
 #endif
 }

src/image/image.cpp

@@ -16,7 +16,7 @@
 
 #if defined __APPLE__ && defined __MACH__
 #   import <UIKit/UIKit.h>
-#elif defined USE_SDL
+#elif defined USE_SDL_IMAGE
 #   include <SDL.h>
 #   include <SDL_image.h>
 #elif defined __ANDROID__
@@ -53,7 +53,7 @@ private:
 
 #if defined __APPLE__ && defined __MACH__
     uint8_t *pixels;
-#elif defined USE_SDL
+#elif defined USE_SDL_IMAGE
     SDL_Surface *img;
 #elif defined __ANDROID__
     jobject bmp;
@@ -109,7 +109,7 @@ Image::Image(char const *path)
     CGContextRelease(ctx);
     [image release];
     [pngdata release];
-#elif defined USE_SDL
+#elif defined USE_SDL_IMAGE
     for (char const *name = path; *name; name++)
         if ((data->img = IMG_Load(name)))
             break;
@@ -334,7 +334,7 @@ void * Image::GetData() const
 {
 #if defined __APPLE__ && defined __MACH__
     return data->pixels;
-#elif defined USE_SDL
+#elif defined USE_SDL_IMAGE
     return data->img->pixels;
 #elif defined __ANDROID__
     return data->pixels;
@@ -349,7 +349,7 @@ Image::~Image()
 {
 #if defined __APPLE__ && defined __MACH__
     free(data->pixels);
-#elif defined USE_SDL
+#elif defined USE_SDL_IMAGE
     SDL_FreeSurface(data->img);
 #elif defined __ANDROID__
     JNIEnv *env;

src/sample.cpp

@@ -17,7 +17,7 @@
 #include <cmath>
 #include <cstring>
 
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
 #   include <SDL.h>
 #   include <SDL_mixer.h>
 #endif
@@ -39,7 +39,7 @@ class SampleData
 
 private:
     char *name, *path;
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
     Mix_Chunk *chunk;
 #endif
 };
@@ -55,7 +55,7 @@ Sample::Sample(char const *path)
     data->path = data->name + 9;
     sprintf(data->name, "<sample> %s", path);
 
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
     data->chunk = Mix_LoadWAV(path);
     if (!data->chunk)
     {
@@ -70,7 +70,7 @@ Sample::Sample(char const *path)
 
 Sample::~Sample()
 {
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
     Mix_FreeChunk(data->chunk);
 #endif
     free(data->name);
@@ -89,7 +89,7 @@ char const *Sample::GetName()
 
 void Sample::Play()
 {
-#if defined USE_SDL
+#if defined USE_SDL_MIXER
     Mix_PlayChannel(-1, data->chunk, 0);
 #endif
 }