Move the endian test macro to alMain.h

Alc/backends/wave.c

@@ -87,14 +87,9 @@ static ALuint WaveProc(ALvoid *ptr)
     ALuint now, start;
     ALuint64 avail, done;
     size_t fs;
-    union {
-        short s;
-        char b[sizeof(short)];
-    } uSB;
     const ALuint restTime = (ALuint64)pDevice->UpdateSize * 1000 /
                             pDevice->Frequency / 2;
 
-    uSB.s = 1;
     frameSize = FrameSizeFromDevFmt(pDevice->FmtChans, pDevice->FmtType);
 
     done = 0;
@@ -122,7 +117,7 @@ static ALuint WaveProc(ALvoid *ptr)
             aluMixData(pDevice, data->buffer, pDevice->UpdateSize);
             done += pDevice->UpdateSize;
 
-            if(uSB.b[0] != 1)
+            if(!IS_LITTLE_ENDIAN)
             {
                 ALuint bytesize = BytesFromDevFmt(pDevice->FmtType);
                 ALubyte *bytes = data->buffer;

OpenAL32/Include/alMain.h

@@ -99,6 +99,13 @@ typedef ptrdiff_t ALsizeiptrEXT;
 #endif
 
 
+static const union {
+    ALuint u;
+    ALubyte b[sizeof(ALuint)];
+} EndianTest = { 1 };
+#define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1)
+
+
 #ifdef _WIN32
 
 #include <windows.h>

OpenAL32/alBuffer.c

@@ -1245,11 +1245,6 @@ static void EncodeIMA4Block(ALima4 *dst, const ALshort *src, ALint *sample, ALin
     }
 }
 
-static const union {
-    ALuint u;
-    ALubyte b[sizeof(ALuint)];
-} EndianTest = { 1 };
-#define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1)
 
 static __inline ALint DecodeByte3(ALbyte3 val)
 {