Fixed a bunch of compiler warnings.

--HG--
extra : rebase_source : a2c94cfaf300f4d9f5b7855489ed05c8e23de9fd

src/file/SDL_rwops.c

@@ -686,7 +686,7 @@ SDL_LoadFile_RW(SDL_RWops * src, size_t *datasize, int freesrc)
 
     size_total = 0;
     for (;;) {
-        if ((size_total + FILE_CHUNK_SIZE) > size) {
+        if ((((Sint64)size_total) + FILE_CHUNK_SIZE) > size) {
             size = (size_total + FILE_CHUNK_SIZE);
             newdata = SDL_realloc(data, (size_t)(size + 1));
             if (!newdata) {

src/stdlib/SDL_qsort.c

@@ -362,7 +362,7 @@ typedef struct { char * first; char * last; } stack_entry;
 
 static char * pivot_big(char *first, char *mid, char *last, size_t size,
                         int compare(const void *, const void *)) {
-  int d=(((last-first)/size)>>3)*size;
+  size_t d=(((last-first)/size)>>3)*size;
 #ifdef DEBUG_QSORT
 fprintf(stderr, "pivot_big: first=%p last=%p size=%lu n=%lu\n", first, (unsigned long)last, size, (unsigned long)((last-first+1)/size));
 #endif

src/test/SDL_test_harness.c

@@ -103,11 +103,11 @@ SDLTest_GenerateExecKey(const char *runSeed, char *suiteName, char *testName, in
     SDLTest_Md5Context md5Context;
     Uint64 *keys;
     char iterationString[16];
-    Uint32 runSeedLength;
-    Uint32 suiteNameLength;
-    Uint32 testNameLength;
-    Uint32 iterationStringLength;
-    Uint32 entireStringLength;
+    size_t runSeedLength;
+    size_t suiteNameLength;
+    size_t testNameLength;
+    size_t iterationStringLength;
+    size_t entireStringLength;
     char *buffer;
 
     if (runSeed == NULL || runSeed[0] == '\0') {
@@ -150,7 +150,7 @@ SDLTest_GenerateExecKey(const char *runSeed, char *suiteName, char *testName, in
 
     /* Hash string and use half of the digest as 64bit exec key */
     SDLTest_Md5Init(&md5Context);
-    SDLTest_Md5Update(&md5Context, (unsigned char *)buffer, entireStringLength);
+    SDLTest_Md5Update(&md5Context, (unsigned char *)buffer, (unsigned int) entireStringLength);
     SDLTest_Md5Final(&md5Context);
     SDL_free(buffer);
     keys = (Uint64 *)md5Context.digest;